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codewhale_agent/
lib.rs

1use std::collections::HashMap;
2
3use codewhale_config::ProviderKind;
4use serde::{Deserialize, Serialize};
5
6/// High-level model family used for shared identity affordances across clients.
7#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
8pub enum ModelFamily {
9    DeepSeek,
10    Anthropic,
11    OpenAI,
12    Google,
13    Meta,
14    Mistral,
15    Qwen,
16    Grok,
17    Cohere,
18    GptOss,
19    Inferencer,
20}
21
22/// Metadata for a single model entry in the registry.
23///
24/// Each model has a canonical `id` used by the provider, a list of `aliases`
25/// that users may reference, and capability flags indicating whether the model
26/// supports tool use and reasoning.
27#[derive(Debug, Clone, Serialize, Deserialize)]
28pub struct ModelInfo {
29    /// The canonical model identifier used by the provider (e.g. `"deepseek-v4-pro"`).
30    pub id: String,
31    /// The provider that serves this model.
32    pub provider: ProviderKind,
33    /// Alternative names that users can use to reference this model (case-insensitive).
34    pub aliases: Vec<String>,
35    /// Whether this model supports tool/function calling.
36    pub supports_tools: bool,
37    /// Whether this model supports extended reasoning.
38    pub supports_reasoning: bool,
39}
40
41/// The result of resolving a user-requested model name to a concrete model entry.
42///
43/// Contains the resolved [`ModelInfo`], whether a fallback was used, and the
44/// chain of resolution strategies that were attempted.
45#[derive(Debug, Clone, Serialize, Deserialize)]
46pub struct ModelResolution {
47    /// The original model name requested by the user, if any.
48    pub requested: Option<String>,
49    /// The concrete model that was resolved.
50    pub resolved: ModelInfo,
51    /// Whether a fallback was used because the requested model was not found.
52    pub used_fallback: bool,
53    /// The ordered list of resolution strategies that were attempted.
54    pub fallback_chain: Vec<String>,
55}
56
57/// A registry of supported models and their aliases, used to resolve user-facing
58/// model names to concrete provider-specific model entries.
59///
60/// The default registry is populated with all built-in models across supported
61/// providers (DeepSeek, NVIDIA NIM, OpenAI-compatible, and others).
62#[derive(Debug, Clone)]
63pub struct ModelRegistry {
64    models: Vec<ModelInfo>,
65    alias_map: HashMap<String, usize>,
66}
67
68/// Creates a registry pre-populated with all built-in models and their aliases.
69impl Default for ModelRegistry {
70    fn default() -> Self {
71        let models = vec![
72            ModelInfo {
73                id: "deepseek-v4-pro".to_string(),
74                provider: ProviderKind::Deepseek,
75                aliases: vec![],
76                supports_tools: true,
77                supports_reasoning: true,
78            },
79            ModelInfo {
80                id: "deepseek-v4-flash".to_string(),
81                provider: ProviderKind::Deepseek,
82                aliases: vec![
83                    "deepseek-chat".to_string(),
84                    "deepseek-reasoner".to_string(),
85                    "deepseek-r1".to_string(),
86                    "deepseek-v3".to_string(),
87                    "deepseek-v3.2".to_string(),
88                ],
89                supports_tools: true,
90                supports_reasoning: true,
91            },
92            ModelInfo {
93                id: "deepseek-ai/deepseek-v4-pro".to_string(),
94                provider: ProviderKind::NvidiaNim,
95                aliases: vec![
96                    "deepseek-v4-pro".to_string(),
97                    "nvidia-deepseek-v4-pro".to_string(),
98                    "nim-deepseek-v4-pro".to_string(),
99                ],
100                supports_tools: true,
101                supports_reasoning: true,
102            },
103            ModelInfo {
104                id: "deepseek-ai/deepseek-v4-flash".to_string(),
105                provider: ProviderKind::NvidiaNim,
106                aliases: vec![
107                    "deepseek-v4-flash".to_string(),
108                    "deepseek-chat".to_string(),
109                    "deepseek-reasoner".to_string(),
110                    "nvidia-deepseek-v4-flash".to_string(),
111                    "nim-deepseek-v4-flash".to_string(),
112                ],
113                supports_tools: true,
114                supports_reasoning: true,
115            },
116            ModelInfo {
117                id: "deepseek-v4-pro".to_string(),
118                provider: ProviderKind::Openai,
119                aliases: vec!["openai-compatible-deepseek-v4-pro".to_string()],
120                supports_tools: true,
121                supports_reasoning: true,
122            },
123            ModelInfo {
124                id: "deepseek-v4-flash".to_string(),
125                provider: ProviderKind::Openai,
126                aliases: vec!["openai-compatible-deepseek-v4-flash".to_string()],
127                supports_tools: true,
128                supports_reasoning: true,
129            },
130            ModelInfo {
131                id: "deepseek-ai/deepseek-v4-flash".to_string(),
132                provider: ProviderKind::Atlascloud,
133                aliases: vec![
134                    "deepseek-v4-flash".to_string(),
135                    "atlascloud-deepseek-v4-flash".to_string(),
136                ],
137                supports_tools: true,
138                supports_reasoning: true,
139            },
140            ModelInfo {
141                id: "deepseek-ai/deepseek-v4-pro".to_string(),
142                provider: ProviderKind::Atlascloud,
143                aliases: vec![
144                    "deepseek-v4-pro".to_string(),
145                    "atlascloud-deepseek-v4-pro".to_string(),
146                ],
147                supports_tools: true,
148                supports_reasoning: true,
149            },
150            ModelInfo {
151                id: "deepseek-reasoner".to_string(),
152                provider: ProviderKind::WanjieArk,
153                aliases: vec![
154                    "wanjie-deepseek-reasoner".to_string(),
155                    "ark-wanjie-deepseek-reasoner".to_string(),
156                ],
157                supports_tools: true,
158                supports_reasoning: true,
159            },
160            ModelInfo {
161                id: "DeepSeek-V4-Pro".to_string(),
162                provider: ProviderKind::Volcengine,
163                aliases: vec![
164                    "deepseek-v4-pro".to_string(),
165                    "volcengine-deepseek-v4-pro".to_string(),
166                    "ark-deepseek-v4-pro".to_string(),
167                ],
168                supports_tools: true,
169                supports_reasoning: true,
170            },
171            ModelInfo {
172                id: "DeepSeek-V4-Flash".to_string(),
173                provider: ProviderKind::Volcengine,
174                aliases: vec![
175                    "deepseek-v4-flash".to_string(),
176                    "deepseek-chat".to_string(),
177                    "volcengine-deepseek-v4-flash".to_string(),
178                    "ark-deepseek-v4-flash".to_string(),
179                ],
180                supports_tools: true,
181                supports_reasoning: true,
182            },
183            ModelInfo {
184                id: "trinity-large-thinking".to_string(),
185                provider: ProviderKind::Arcee,
186                aliases: vec![
187                    "trinity".to_string(),
188                    "arcee-trinity".to_string(),
189                    "arcee-trinity-large-thinking".to_string(),
190                ],
191                supports_tools: true,
192                supports_reasoning: true,
193            },
194            ModelInfo {
195                id: "deepseek/deepseek-v4-pro".to_string(),
196                provider: ProviderKind::Openrouter,
197                aliases: vec![
198                    "deepseek-v4-pro".to_string(),
199                    "openrouter-deepseek-v4-pro".to_string(),
200                ],
201                supports_tools: true,
202                supports_reasoning: true,
203            },
204            ModelInfo {
205                id: "deepseek/deepseek-v4-flash".to_string(),
206                provider: ProviderKind::Openrouter,
207                aliases: vec![
208                    "deepseek-v4-flash".to_string(),
209                    "deepseek-chat".to_string(),
210                    "deepseek-reasoner".to_string(),
211                    "openrouter-deepseek-v4-flash".to_string(),
212                ],
213                supports_tools: true,
214                supports_reasoning: true,
215            },
216            ModelInfo {
217                id: "arcee-ai/trinity-large-thinking".to_string(),
218                provider: ProviderKind::Openrouter,
219                aliases: vec![
220                    "trinity".to_string(),
221                    "trinity-large-thinking".to_string(),
222                    "arcee-trinity-large-thinking".to_string(),
223                ],
224                supports_tools: true,
225                supports_reasoning: true,
226            },
227            ModelInfo {
228                id: "xiaomi/mimo-v2.5-pro".to_string(),
229                provider: ProviderKind::Openrouter,
230                aliases: vec![
231                    "openrouter-mimo-v2.5-pro".to_string(),
232                    "openrouter-xiaomi-mimo-v2.5-pro".to_string(),
233                ],
234                supports_tools: true,
235                supports_reasoning: true,
236            },
237            ModelInfo {
238                id: "xiaomi/mimo-v2.5".to_string(),
239                provider: ProviderKind::Openrouter,
240                aliases: vec![
241                    "openrouter-mimo-v2.5".to_string(),
242                    "openrouter-xiaomi-mimo-v2.5".to_string(),
243                ],
244                supports_tools: true,
245                supports_reasoning: true,
246            },
247            ModelInfo {
248                id: "qwen/qwen3.6-flash".to_string(),
249                provider: ProviderKind::Openrouter,
250                aliases: vec!["qwen3.6-flash".to_string(), "qwen-3.6-flash".to_string()],
251                supports_tools: true,
252                supports_reasoning: true,
253            },
254            ModelInfo {
255                id: "qwen/qwen3.6-35b-a3b".to_string(),
256                provider: ProviderKind::Openrouter,
257                aliases: vec![
258                    "qwen3.6-35b-a3b".to_string(),
259                    "qwen-3.6-35b-a3b".to_string(),
260                ],
261                supports_tools: true,
262                supports_reasoning: true,
263            },
264            ModelInfo {
265                id: "qwen/qwen3.6-max-preview".to_string(),
266                provider: ProviderKind::Openrouter,
267                aliases: vec![
268                    "qwen3.6-max-preview".to_string(),
269                    "qwen-3.6-max-preview".to_string(),
270                    "qwen-max-preview".to_string(),
271                ],
272                supports_tools: true,
273                supports_reasoning: true,
274            },
275            ModelInfo {
276                id: "qwen/qwen3.6-27b".to_string(),
277                provider: ProviderKind::Openrouter,
278                aliases: vec!["qwen3.6-27b".to_string(), "qwen-3.6-27b".to_string()],
279                supports_tools: true,
280                supports_reasoning: true,
281            },
282            ModelInfo {
283                id: "qwen/qwen3.6-plus".to_string(),
284                provider: ProviderKind::Openrouter,
285                aliases: vec!["qwen3.6-plus".to_string(), "qwen-3.6-plus".to_string()],
286                supports_tools: true,
287                supports_reasoning: true,
288            },
289            ModelInfo {
290                id: "moonshotai/kimi-k2.6".to_string(),
291                provider: ProviderKind::Openrouter,
292                aliases: vec!["openrouter-kimi-k2.6".to_string()],
293                supports_tools: true,
294                supports_reasoning: true,
295            },
296            ModelInfo {
297                id: "minimax/minimax-m3".to_string(),
298                provider: ProviderKind::Openrouter,
299                aliases: vec![
300                    "minimax-m3".to_string(),
301                    "minimax-m-3".to_string(),
302                    "openrouter-minimax-m3".to_string(),
303                ],
304                supports_tools: true,
305                supports_reasoning: true,
306            },
307            ModelInfo {
308                id: "z-ai/glm-5.1".to_string(),
309                provider: ProviderKind::Openrouter,
310                aliases: vec!["glm-5.1".to_string(), "zai-glm-5.1".to_string()],
311                supports_tools: true,
312                supports_reasoning: true,
313            },
314            ModelInfo {
315                id: "tencent/hy3-preview".to_string(),
316                provider: ProviderKind::Openrouter,
317                aliases: vec!["hy3-preview".to_string(), "tencent-hy3-preview".to_string()],
318                supports_tools: true,
319                supports_reasoning: true,
320            },
321            ModelInfo {
322                id: "google/gemma-4-31b-it".to_string(),
323                provider: ProviderKind::Openrouter,
324                aliases: vec!["gemma-4-31b".to_string(), "gemma-4-31b-it".to_string()],
325                supports_tools: true,
326                supports_reasoning: true,
327            },
328            ModelInfo {
329                id: "google/gemma-4-26b-a4b-it".to_string(),
330                provider: ProviderKind::Openrouter,
331                aliases: vec![
332                    "gemma-4-26b-a4b".to_string(),
333                    "gemma-4-26b-a4b-it".to_string(),
334                ],
335                supports_tools: true,
336                supports_reasoning: true,
337            },
338            ModelInfo {
339                id: "nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:free".to_string(),
340                provider: ProviderKind::Openrouter,
341                aliases: vec![
342                    "nemotron-3-nano-omni".to_string(),
343                    "nemotron-3-nano-omni-reasoning".to_string(),
344                ],
345                supports_tools: true,
346                supports_reasoning: true,
347            },
348            ModelInfo {
349                id: "mimo-v2.5-pro".to_string(),
350                provider: ProviderKind::XiaomiMimo,
351                aliases: vec![
352                    "mimo".to_string(),
353                    "pro".to_string(),
354                    "xiaomi-mimo-v2.5-pro".to_string(),
355                    "xiaomi-mimo-v2-5-pro".to_string(),
356                ],
357                supports_tools: true,
358                supports_reasoning: true,
359            },
360            ModelInfo {
361                id: "mimo-v2.5".to_string(),
362                provider: ProviderKind::XiaomiMimo,
363                aliases: vec![
364                    "omni".to_string(),
365                    "mimo-omni".to_string(),
366                    "v2.5-omni".to_string(),
367                    "mimo-v2.5-omni".to_string(),
368                    "xiaomi-mimo-v2.5".to_string(),
369                    "xiaomi-mimo-v2.5-omni".to_string(),
370                ],
371                supports_tools: true,
372                supports_reasoning: true,
373            },
374            ModelInfo {
375                id: "mimo-v2.5-asr".to_string(),
376                provider: ProviderKind::XiaomiMimo,
377                aliases: vec![
378                    "asr".to_string(),
379                    "speech-to-text".to_string(),
380                    "transcribe".to_string(),
381                ],
382                supports_tools: false,
383                supports_reasoning: false,
384            },
385            ModelInfo {
386                id: "mimo-v2.5-tts".to_string(),
387                provider: ProviderKind::XiaomiMimo,
388                aliases: vec![
389                    "tts".to_string(),
390                    "speech".to_string(),
391                    "mimo-tts".to_string(),
392                ],
393                supports_tools: false,
394                supports_reasoning: false,
395            },
396            ModelInfo {
397                id: "mimo-v2.5-tts-voicedesign".to_string(),
398                provider: ProviderKind::XiaomiMimo,
399                aliases: vec![
400                    "voicedesign".to_string(),
401                    "voice-design".to_string(),
402                    "mimo-voice-design".to_string(),
403                ],
404                supports_tools: false,
405                supports_reasoning: false,
406            },
407            ModelInfo {
408                id: "mimo-v2.5-tts-voiceclone".to_string(),
409                provider: ProviderKind::XiaomiMimo,
410                aliases: vec![
411                    "voiceclone".to_string(),
412                    "voice-clone".to_string(),
413                    "mimo-voice-clone".to_string(),
414                ],
415                supports_tools: false,
416                supports_reasoning: false,
417            },
418            ModelInfo {
419                id: "mimo-v2-tts".to_string(),
420                provider: ProviderKind::XiaomiMimo,
421                aliases: vec!["mimo-v2-speech".to_string()],
422                supports_tools: false,
423                supports_reasoning: false,
424            },
425            ModelInfo {
426                id: "deepseek/deepseek-v4-pro".to_string(),
427                provider: ProviderKind::Novita,
428                aliases: vec![
429                    "deepseek-v4-pro".to_string(),
430                    "novita-deepseek-v4-pro".to_string(),
431                ],
432                supports_tools: true,
433                supports_reasoning: true,
434            },
435            ModelInfo {
436                id: "deepseek/deepseek-v4-flash".to_string(),
437                provider: ProviderKind::Novita,
438                aliases: vec![
439                    "deepseek-v4-flash".to_string(),
440                    "deepseek-chat".to_string(),
441                    "deepseek-reasoner".to_string(),
442                    "novita-deepseek-v4-flash".to_string(),
443                ],
444                supports_tools: true,
445                supports_reasoning: true,
446            },
447            ModelInfo {
448                id: "accounts/fireworks/models/deepseek-v4-pro".to_string(),
449                provider: ProviderKind::Fireworks,
450                aliases: vec![
451                    "deepseek-v4-pro".to_string(),
452                    "fireworks-deepseek-v4-pro".to_string(),
453                ],
454                supports_tools: true,
455                supports_reasoning: true,
456            },
457            ModelInfo {
458                id: "deepseek-ai/DeepSeek-V4-Pro".to_string(),
459                provider: ProviderKind::Siliconflow,
460                aliases: vec![
461                    "deepseek-v4-pro".to_string(),
462                    "deepseek-reasoner".to_string(),
463                    "deepseek-r1".to_string(),
464                    "siliconflow-deepseek-v4-pro".to_string(),
465                ],
466                supports_tools: true,
467                supports_reasoning: true,
468            },
469            ModelInfo {
470                id: "deepseek-ai/DeepSeek-V4-Flash".to_string(),
471                provider: ProviderKind::Siliconflow,
472                aliases: vec![
473                    "deepseek-v4-flash".to_string(),
474                    "deepseek-chat".to_string(),
475                    "deepseek-v3".to_string(),
476                    "siliconflow-deepseek-v4-flash".to_string(),
477                ],
478                supports_tools: true,
479                supports_reasoning: true,
480            },
481            ModelInfo {
482                id: "trinity-large-preview".to_string(),
483                provider: ProviderKind::Arcee,
484                aliases: vec!["arcee-trinity-large-preview".to_string()],
485                supports_tools: true,
486                supports_reasoning: false,
487            },
488            ModelInfo {
489                id: "kimi-k2.6".to_string(),
490                provider: ProviderKind::Moonshot,
491                aliases: vec![
492                    "kimi".to_string(),
493                    "kimi-k2".to_string(),
494                    "moonshot-kimi-k2.6".to_string(),
495                ],
496                supports_tools: true,
497                supports_reasoning: true,
498            },
499            ModelInfo {
500                id: "deepseek-ai/DeepSeek-V4-Pro".to_string(),
501                provider: ProviderKind::Sglang,
502                aliases: vec![
503                    "deepseek-v4-pro".to_string(),
504                    "sglang-deepseek-v4-pro".to_string(),
505                ],
506                supports_tools: true,
507                supports_reasoning: true,
508            },
509            ModelInfo {
510                id: "deepseek-ai/DeepSeek-V4-Flash".to_string(),
511                provider: ProviderKind::Sglang,
512                aliases: vec![
513                    "deepseek-v4-flash".to_string(),
514                    "deepseek-chat".to_string(),
515                    "deepseek-reasoner".to_string(),
516                    "sglang-deepseek-v4-flash".to_string(),
517                ],
518                supports_tools: true,
519                supports_reasoning: true,
520            },
521            ModelInfo {
522                id: "deepseek-ai/DeepSeek-V4-Pro".to_string(),
523                provider: ProviderKind::Vllm,
524                aliases: vec![
525                    "deepseek-v4-pro".to_string(),
526                    "vllm-deepseek-v4-pro".to_string(),
527                ],
528                supports_tools: true,
529                supports_reasoning: true,
530            },
531            ModelInfo {
532                id: "deepseek-ai/DeepSeek-V4-Flash".to_string(),
533                provider: ProviderKind::Vllm,
534                aliases: vec![
535                    "deepseek-v4-flash".to_string(),
536                    "deepseek-chat".to_string(),
537                    "deepseek-reasoner".to_string(),
538                    "vllm-deepseek-v4-flash".to_string(),
539                ],
540                supports_tools: true,
541                supports_reasoning: true,
542            },
543            ModelInfo {
544                id: "deepseek-coder:1.3b".to_string(),
545                provider: ProviderKind::Ollama,
546                aliases: vec![],
547                supports_tools: true,
548                supports_reasoning: false,
549            },
550            ModelInfo {
551                id: "deepseek-ai/DeepSeek-V4-Pro".to_string(),
552                provider: ProviderKind::Huggingface,
553                aliases: vec![
554                    "deepseek-v4-pro".to_string(),
555                    "hf-deepseek-v4-pro".to_string(),
556                ],
557                supports_tools: true,
558                supports_reasoning: true,
559            },
560            ModelInfo {
561                id: "deepseek-ai/DeepSeek-V4-Flash".to_string(),
562                provider: ProviderKind::Huggingface,
563                aliases: vec![
564                    "deepseek-v4-flash".to_string(),
565                    "deepseek-chat".to_string(),
566                    "deepseek-reasoner".to_string(),
567                    "hf-deepseek-v4-flash".to_string(),
568                ],
569                supports_tools: true,
570                supports_reasoning: true,
571            },
572        ];
573        Self::new(models)
574    }
575}
576
577impl ModelRegistry {
578    /// Creates a new registry from a list of [`ModelInfo`] entries.
579    ///
580    /// Builds an internal alias map for fast lookup by model id or alias.
581    /// If multiple models share the same id or alias, the first one registered
582    /// takes priority.
583    #[must_use]
584    pub fn new(models: Vec<ModelInfo>) -> Self {
585        let mut alias_map = HashMap::new();
586        for (idx, model) in models.iter().enumerate() {
587            alias_map.entry(normalize(&model.id)).or_insert(idx);
588            for alias in &model.aliases {
589                alias_map.entry(normalize(alias)).or_insert(idx);
590            }
591        }
592        Self { models, alias_map }
593    }
594
595    /// Returns a clone of all models in the registry.
596    #[must_use]
597    pub fn list(&self) -> Vec<ModelInfo> {
598        self.models.clone()
599    }
600
601    /// Resolves a user-requested model name to a concrete [`ModelInfo`].
602    ///
603    /// Resolution follows this priority order:
604    /// 1. If the provider is Ollama, the requested name is used as-is (to
605    ///    support arbitrary local model tags like `qwen2.5-coder:7b`).
606    /// 2. If a `provider_hint` is given, search for a model matching that
607    ///    provider whose id or alias matches the request (case-insensitive).
608    /// 3. Look up the alias map for a case-insensitive match.
609    /// 4. Fall back to the first model belonging to the hinted provider
610    ///    (or DeepSeek if no hint was given).
611    /// 5. As a last resort, fall back to the first model in the registry.
612    #[must_use]
613    pub fn resolve(
614        &self,
615        requested: Option<&str>,
616        provider_hint: Option<ProviderKind>,
617    ) -> ModelResolution {
618        let mut fallback_chain = Vec::new();
619
620        if let Some(name) = requested {
621            fallback_chain.push(format!("requested:{name}"));
622            if provider_hint == Some(ProviderKind::Ollama) {
623                return ModelResolution {
624                    requested: Some(name.to_string()),
625                    resolved: ModelInfo {
626                        id: name.trim().to_string(),
627                        provider: ProviderKind::Ollama,
628                        aliases: Vec::new(),
629                        supports_tools: true,
630                        supports_reasoning: false,
631                    },
632                    used_fallback: false,
633                    fallback_chain,
634                };
635            }
636            if let Some(provider) = provider_hint
637                && let Some(model) = self
638                    .models
639                    .iter()
640                    .find(|m| m.provider == provider && model_matches(m, name))
641                    .cloned()
642            {
643                return ModelResolution {
644                    requested: Some(name.to_string()),
645                    resolved: model,
646                    used_fallback: false,
647                    fallback_chain,
648                };
649            }
650            if provider_hint == Some(ProviderKind::Atlascloud)
651                && let Some(model) = atlascloud_passthrough_model(name)
652            {
653                return ModelResolution {
654                    requested: Some(name.to_string()),
655                    resolved: model,
656                    used_fallback: false,
657                    fallback_chain,
658                };
659            }
660            if provider_hint == Some(ProviderKind::Arcee)
661                && let Some(model) = arcee_passthrough_model(name)
662            {
663                return ModelResolution {
664                    requested: Some(name.to_string()),
665                    resolved: model,
666                    used_fallback: false,
667                    fallback_chain,
668                };
669            }
670            if provider_hint == Some(ProviderKind::XiaomiMimo)
671                && let Some(model) = xiaomi_mimo_passthrough_model(name)
672            {
673                return ModelResolution {
674                    requested: Some(name.to_string()),
675                    resolved: model,
676                    used_fallback: false,
677                    fallback_chain,
678                };
679            }
680            if let Some(idx) = self.alias_map.get(&normalize(name)) {
681                return ModelResolution {
682                    requested: Some(name.to_string()),
683                    resolved: preserve_requested_model_id_case(self.models[*idx].clone(), name),
684                    used_fallback: false,
685                    fallback_chain,
686                };
687            }
688        }
689
690        let provider = provider_hint.unwrap_or(ProviderKind::Deepseek);
691        fallback_chain.push(format!("provider_default:{}", provider.as_str()));
692        if let Some(model) = self.models.iter().find(|m| m.provider == provider).cloned() {
693            return ModelResolution {
694                requested: requested.map(ToOwned::to_owned),
695                resolved: model,
696                used_fallback: true,
697                fallback_chain,
698            };
699        }
700
701        let final_fallback = self.models.first().cloned().unwrap_or(ModelInfo {
702            id: "deepseek-v4-pro".to_string(),
703            provider: ProviderKind::Deepseek,
704            aliases: Vec::new(),
705            supports_tools: true,
706            supports_reasoning: true,
707        });
708        fallback_chain.push("global_default:deepseek-v4-pro".to_string());
709        ModelResolution {
710            requested: requested.map(ToOwned::to_owned),
711            resolved: final_fallback,
712            used_fallback: true,
713            fallback_chain,
714        }
715    }
716}
717
718fn normalize(value: &str) -> String {
719    value.trim().to_ascii_lowercase()
720}
721
722#[must_use]
723/// Classify a model identifier by its underlying model family.
724pub fn model_family(model_id: &str) -> ModelFamily {
725    let normalized = normalize(model_id);
726    if normalized.is_empty() {
727        return ModelFamily::Inferencer;
728    }
729
730    if normalized.contains("deepseek") {
731        return ModelFamily::DeepSeek;
732    }
733    if normalized.contains("claude") || normalized.contains("anthropic") {
734        return ModelFamily::Anthropic;
735    }
736    if normalized.contains("gpt-oss") || normalized.contains("gpt_oss") {
737        return ModelFamily::GptOss;
738    }
739    if normalized.starts_with("gpt-")
740        || normalized.contains("/gpt-")
741        || normalized.contains("openai/")
742    {
743        return ModelFamily::OpenAI;
744    }
745    if normalized.contains("gemini")
746        || normalized.contains("gemma")
747        || normalized.contains("google/")
748    {
749        return ModelFamily::Google;
750    }
751    if normalized.contains("llama") || normalized.contains("meta-") || normalized.contains("meta/")
752    {
753        return ModelFamily::Meta;
754    }
755    if normalized.contains("mistral")
756        || normalized.contains("mixtral")
757        || normalized.contains("codestral")
758    {
759        return ModelFamily::Mistral;
760    }
761    if normalized.contains("qwen") {
762        return ModelFamily::Qwen;
763    }
764    if normalized.contains("grok") {
765        return ModelFamily::Grok;
766    }
767    if normalized.contains("cohere") || normalized.contains("command-r") {
768        return ModelFamily::Cohere;
769    }
770
771    ModelFamily::Inferencer
772}
773
774fn model_matches(model: &ModelInfo, requested: &str) -> bool {
775    let requested = normalize(requested);
776    normalize(&model.id) == requested
777        || model
778            .aliases
779            .iter()
780            .any(|alias| normalize(alias) == requested)
781}
782
783fn preserve_requested_model_id_case(mut model: ModelInfo, requested: &str) -> ModelInfo {
784    let requested = requested.trim();
785    if model.id.eq_ignore_ascii_case(requested) {
786        model.id = requested.to_string();
787    }
788    model
789}
790
791fn atlascloud_passthrough_model(requested: &str) -> Option<ModelInfo> {
792    let requested = requested.trim();
793    if requested.is_empty() || !requested.contains('/') {
794        return None;
795    }
796
797    Some(ModelInfo {
798        id: requested.to_string(),
799        provider: ProviderKind::Atlascloud,
800        aliases: Vec::new(),
801        supports_tools: true,
802        supports_reasoning: true,
803    })
804}
805
806fn arcee_passthrough_model(requested: &str) -> Option<ModelInfo> {
807    let requested = requested.trim();
808    if requested.is_empty() {
809        return None;
810    }
811    let supports_reasoning = requested.to_ascii_lowercase().contains("thinking");
812
813    Some(ModelInfo {
814        id: requested.to_string(),
815        provider: ProviderKind::Arcee,
816        aliases: Vec::new(),
817        supports_tools: true,
818        supports_reasoning,
819    })
820}
821
822fn xiaomi_mimo_passthrough_model(requested: &str) -> Option<ModelInfo> {
823    let requested = requested.trim();
824    if requested.is_empty() || requested.chars().any(char::is_control) {
825        return None;
826    }
827
828    Some(ModelInfo {
829        id: requested.to_string(),
830        provider: ProviderKind::XiaomiMimo,
831        aliases: Vec::new(),
832        supports_tools: true,
833        supports_reasoning: true,
834    })
835}
836
837#[cfg(test)]
838mod tests {
839    use super::*;
840
841    #[test]
842    fn deepseek_v4_pro_alias_stays_deepseek_by_default() {
843        let registry = ModelRegistry::default();
844        let resolved = registry.resolve(Some("deepseek-v4-pro"), None);
845
846        assert_eq!(resolved.resolved.provider, ProviderKind::Deepseek);
847        assert_eq!(resolved.resolved.id, "deepseek-v4-pro");
848    }
849
850    #[test]
851    fn deepseek_v4_pro_alias_resolves_to_nvidia_nim_when_provider_hinted() {
852        let registry = ModelRegistry::default();
853        let resolved = registry.resolve(Some("deepseek-v4-pro"), Some(ProviderKind::NvidiaNim));
854
855        assert_eq!(resolved.resolved.provider, ProviderKind::NvidiaNim);
856        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-pro");
857    }
858
859    #[test]
860    fn nvidia_nim_default_uses_catalog_model_id() {
861        let registry = ModelRegistry::default();
862        let resolved = registry.resolve(None, Some(ProviderKind::NvidiaNim));
863
864        assert_eq!(resolved.resolved.provider, ProviderKind::NvidiaNim);
865        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-pro");
866    }
867
868    #[test]
869    fn deepseek_v4_flash_alias_resolves_to_nvidia_nim_when_provider_hinted() {
870        let registry = ModelRegistry::default();
871        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::NvidiaNim));
872
873        assert_eq!(resolved.resolved.provider, ProviderKind::NvidiaNim);
874        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-flash");
875    }
876
877    #[test]
878    fn atlascloud_default_uses_namespaced_model_id() {
879        let registry = ModelRegistry::default();
880        let resolved = registry.resolve(None, Some(ProviderKind::Atlascloud));
881
882        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
883        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-flash");
884        assert!(resolved.resolved.supports_reasoning);
885    }
886
887    #[test]
888    fn deepseek_v4_flash_alias_resolves_to_atlascloud_when_provider_hinted() {
889        let registry = ModelRegistry::default();
890        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Atlascloud));
891
892        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
893        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-flash");
894    }
895
896    #[test]
897    fn deepseek_v4_pro_alias_resolves_to_atlascloud_when_provider_hinted() {
898        let registry = ModelRegistry::default();
899        let resolved = registry.resolve(Some("deepseek-v4-pro"), Some(ProviderKind::Atlascloud));
900
901        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
902        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-pro");
903    }
904
905    #[test]
906    fn atlascloud_provider_hint_passes_through_explicit_model_id() {
907        let registry = ModelRegistry::default();
908        let resolved =
909            registry.resolve(Some("openai/gpt-5.2-chat"), Some(ProviderKind::Atlascloud));
910
911        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
912        assert_eq!(resolved.resolved.id, "openai/gpt-5.2-chat");
913        assert!(resolved.resolved.supports_tools);
914        assert!(resolved.resolved.supports_reasoning);
915        assert!(!resolved.used_fallback);
916    }
917
918    #[test]
919    fn atlascloud_provider_hint_preserves_explicit_model_id_case() {
920        let registry = ModelRegistry::default();
921        let resolved = registry.resolve(Some("Qwen/Qwen3-Coder"), Some(ProviderKind::Atlascloud));
922
923        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
924        assert_eq!(resolved.resolved.id, "Qwen/Qwen3-Coder");
925        assert!(!resolved.used_fallback);
926    }
927
928    #[test]
929    fn atlascloud_plain_unknown_model_still_uses_provider_default() {
930        let registry = ModelRegistry::default();
931        let resolved = registry.resolve(Some("not-in-atlas"), Some(ProviderKind::Atlascloud));
932
933        assert_eq!(resolved.resolved.provider, ProviderKind::Atlascloud);
934        assert_eq!(resolved.resolved.id, "deepseek-ai/deepseek-v4-flash");
935        assert!(resolved.used_fallback);
936    }
937
938    #[test]
939    fn openrouter_default_uses_namespaced_model_id() {
940        let registry = ModelRegistry::default();
941        let resolved = registry.resolve(None, Some(ProviderKind::Openrouter));
942
943        assert_eq!(resolved.resolved.provider, ProviderKind::Openrouter);
944        assert_eq!(resolved.resolved.id, "deepseek/deepseek-v4-pro");
945    }
946
947    #[test]
948    fn xiaomi_mimo_default_uses_canonical_model_id() {
949        let registry = ModelRegistry::default();
950        let resolved = registry.resolve(None, Some(ProviderKind::XiaomiMimo));
951
952        assert_eq!(resolved.resolved.provider, ProviderKind::XiaomiMimo);
953        assert_eq!(resolved.resolved.id, "mimo-v2.5-pro");
954        assert!(resolved.resolved.supports_reasoning);
955    }
956
957    #[test]
958    fn xiaomi_mimo_tts_aliases_resolve_when_provider_hinted() {
959        let registry = ModelRegistry::default();
960        let resolved = registry.resolve(Some("tts"), Some(ProviderKind::XiaomiMimo));
961        assert_eq!(resolved.resolved.provider, ProviderKind::XiaomiMimo);
962        assert_eq!(resolved.resolved.id, "mimo-v2.5-tts");
963        assert!(!resolved.resolved.supports_tools);
964        assert!(!resolved.resolved.supports_reasoning);
965
966        let resolved = registry.resolve(Some("voice-design"), Some(ProviderKind::XiaomiMimo));
967        assert_eq!(resolved.resolved.id, "mimo-v2.5-tts-voicedesign");
968
969        let resolved = registry.resolve(Some("voiceclone"), Some(ProviderKind::XiaomiMimo));
970        assert_eq!(resolved.resolved.id, "mimo-v2.5-tts-voiceclone");
971    }
972
973    #[test]
974    fn xiaomi_mimo_chat_aliases_resolve_when_provider_hinted() {
975        let registry = ModelRegistry::default();
976
977        let resolved = registry.resolve(Some("omni"), Some(ProviderKind::XiaomiMimo));
978        assert_eq!(resolved.resolved.provider, ProviderKind::XiaomiMimo);
979        assert_eq!(resolved.resolved.id, "mimo-v2.5");
980        assert!(resolved.resolved.supports_tools);
981    }
982
983    #[test]
984    fn xiaomi_mimo_provider_hint_preserves_custom_model_id() {
985        let registry = ModelRegistry::default();
986        let resolved =
987            registry.resolve(Some("account-custom-mimo"), Some(ProviderKind::XiaomiMimo));
988
989        assert_eq!(resolved.resolved.provider, ProviderKind::XiaomiMimo);
990        assert_eq!(resolved.resolved.id, "account-custom-mimo");
991        assert!(!resolved.used_fallback);
992    }
993
994    #[test]
995    fn xiaomi_mimo_provider_hint_does_not_reclassify_openrouter_model_id() {
996        let registry = ModelRegistry::default();
997        let resolved = registry.resolve(
998            Some("deepseek/deepseek-v4-pro"),
999            Some(ProviderKind::XiaomiMimo),
1000        );
1001
1002        assert_eq!(resolved.resolved.provider, ProviderKind::XiaomiMimo);
1003        assert_eq!(resolved.resolved.id, "deepseek/deepseek-v4-pro");
1004        assert!(!resolved.used_fallback);
1005    }
1006
1007    #[test]
1008    fn wanjie_ark_default_uses_reasoner_model_id() {
1009        let registry = ModelRegistry::default();
1010        let resolved = registry.resolve(None, Some(ProviderKind::WanjieArk));
1011
1012        assert_eq!(resolved.resolved.provider, ProviderKind::WanjieArk);
1013        assert_eq!(resolved.resolved.id, "deepseek-reasoner");
1014        assert!(resolved.resolved.supports_reasoning);
1015    }
1016
1017    #[test]
1018    fn novita_default_uses_namespaced_model_id() {
1019        let registry = ModelRegistry::default();
1020        let resolved = registry.resolve(None, Some(ProviderKind::Novita));
1021
1022        assert_eq!(resolved.resolved.provider, ProviderKind::Novita);
1023        assert_eq!(resolved.resolved.id, "deepseek/deepseek-v4-pro");
1024    }
1025
1026    #[test]
1027    fn fireworks_default_uses_canonical_model_id() {
1028        let registry = ModelRegistry::default();
1029        let resolved = registry.resolve(None, Some(ProviderKind::Fireworks));
1030
1031        assert_eq!(resolved.resolved.provider, ProviderKind::Fireworks);
1032        assert_eq!(
1033            resolved.resolved.id,
1034            "accounts/fireworks/models/deepseek-v4-pro"
1035        );
1036    }
1037
1038    #[test]
1039    fn siliconflow_default_uses_canonical_pro_model_id() {
1040        let registry = ModelRegistry::default();
1041        let resolved = registry.resolve(None, Some(ProviderKind::Siliconflow));
1042
1043        assert_eq!(resolved.resolved.provider, ProviderKind::Siliconflow);
1044        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Pro");
1045        assert!(resolved.resolved.supports_reasoning);
1046    }
1047
1048    #[test]
1049    fn arcee_default_uses_direct_trinity_large_thinking_model_id() {
1050        let registry = ModelRegistry::default();
1051        let resolved = registry.resolve(None, Some(ProviderKind::Arcee));
1052
1053        assert_eq!(resolved.resolved.provider, ProviderKind::Arcee);
1054        assert_eq!(resolved.resolved.id, "trinity-large-thinking");
1055        assert!(resolved.resolved.supports_reasoning);
1056    }
1057
1058    #[test]
1059    fn arcee_trinity_alias_resolves_to_direct_large_thinking_not_openrouter() {
1060        let registry = ModelRegistry::default();
1061        let resolved = registry.resolve(Some("trinity"), Some(ProviderKind::Arcee));
1062
1063        assert_eq!(resolved.resolved.provider, ProviderKind::Arcee);
1064        assert_eq!(resolved.resolved.id, "trinity-large-thinking");
1065        assert!(resolved.resolved.supports_reasoning);
1066    }
1067
1068    #[test]
1069    fn arcee_trinity_mini_remains_explicit_compatibility_model() {
1070        let registry = ModelRegistry::default();
1071        let resolved = registry.resolve(Some("trinity-mini"), Some(ProviderKind::Arcee));
1072
1073        assert_eq!(resolved.resolved.provider, ProviderKind::Arcee);
1074        assert_eq!(resolved.resolved.id, "trinity-mini");
1075        assert!(!resolved.resolved.supports_reasoning);
1076    }
1077
1078    #[test]
1079    fn arcee_provider_hint_preserves_explicit_future_model_id() {
1080        let registry = ModelRegistry::default();
1081        let resolved = registry.resolve(Some("trinity-large-next"), Some(ProviderKind::Arcee));
1082
1083        assert_eq!(resolved.resolved.provider, ProviderKind::Arcee);
1084        assert_eq!(resolved.resolved.id, "trinity-large-next");
1085        assert!(!resolved.resolved.supports_reasoning);
1086        assert!(!resolved.used_fallback);
1087    }
1088
1089    #[test]
1090    fn deepseek_reasoner_alias_resolves_to_siliconflow_pro_when_provider_hinted() {
1091        let registry = ModelRegistry::default();
1092        let resolved = registry.resolve(Some("deepseek-reasoner"), Some(ProviderKind::Siliconflow));
1093
1094        assert_eq!(resolved.resolved.provider, ProviderKind::Siliconflow);
1095        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Pro");
1096    }
1097
1098    #[test]
1099    fn deepseek_v4_flash_alias_resolves_to_siliconflow_flash_when_provider_hinted() {
1100        let registry = ModelRegistry::default();
1101        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Siliconflow));
1102
1103        assert_eq!(resolved.resolved.provider, ProviderKind::Siliconflow);
1104        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Flash");
1105    }
1106
1107    #[test]
1108    fn sglang_default_uses_canonical_model_id() {
1109        let registry = ModelRegistry::default();
1110        let resolved = registry.resolve(None, Some(ProviderKind::Sglang));
1111
1112        assert_eq!(resolved.resolved.provider, ProviderKind::Sglang);
1113        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Pro");
1114    }
1115
1116    #[test]
1117    fn deepseek_v4_flash_alias_resolves_to_openrouter_when_provider_hinted() {
1118        let registry = ModelRegistry::default();
1119        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Openrouter));
1120
1121        assert_eq!(resolved.resolved.provider, ProviderKind::Openrouter);
1122        assert_eq!(resolved.resolved.id, "deepseek/deepseek-v4-flash");
1123    }
1124
1125    #[test]
1126    fn recent_openrouter_large_model_aliases_resolve_when_provider_hinted() {
1127        let registry = ModelRegistry::default();
1128
1129        for (alias, expected) in [
1130            ("trinity-large-thinking", "arcee-ai/trinity-large-thinking"),
1131            ("qwen3.6-flash", "qwen/qwen3.6-flash"),
1132            ("qwen3.6-35b-a3b", "qwen/qwen3.6-35b-a3b"),
1133            ("qwen3.6-max-preview", "qwen/qwen3.6-max-preview"),
1134            ("qwen3.6-plus", "qwen/qwen3.6-plus"),
1135            ("gemma-4-31b-it", "google/gemma-4-31b-it"),
1136            ("glm-5.1", "z-ai/glm-5.1"),
1137            ("minimax-m3", "minimax/minimax-m3"),
1138            ("openrouter-mimo-v2.5-pro", "xiaomi/mimo-v2.5-pro"),
1139            ("openrouter-kimi-k2.6", "moonshotai/kimi-k2.6"),
1140        ] {
1141            let resolved = registry.resolve(Some(alias), Some(ProviderKind::Openrouter));
1142
1143            assert_eq!(resolved.resolved.provider, ProviderKind::Openrouter);
1144            assert_eq!(resolved.resolved.id, expected);
1145            assert!(resolved.resolved.supports_tools);
1146            assert!(resolved.resolved.supports_reasoning);
1147        }
1148    }
1149
1150    #[test]
1151    fn deepseek_v4_flash_alias_resolves_to_novita_when_provider_hinted() {
1152        let registry = ModelRegistry::default();
1153        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Novita));
1154
1155        assert_eq!(resolved.resolved.provider, ProviderKind::Novita);
1156        assert_eq!(resolved.resolved.id, "deepseek/deepseek-v4-flash");
1157    }
1158
1159    #[test]
1160    fn deepseek_v4_flash_alias_resolves_to_sglang_when_provider_hinted() {
1161        let registry = ModelRegistry::default();
1162        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Sglang));
1163
1164        assert_eq!(resolved.resolved.provider, ProviderKind::Sglang);
1165        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Flash");
1166    }
1167
1168    #[test]
1169    fn vllm_default_uses_canonical_model_id() {
1170        let registry = ModelRegistry::default();
1171        let resolved = registry.resolve(None, Some(ProviderKind::Vllm));
1172
1173        assert_eq!(resolved.resolved.provider, ProviderKind::Vllm);
1174        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Pro");
1175    }
1176
1177    #[test]
1178    fn ollama_default_uses_small_local_model_id() {
1179        let registry = ModelRegistry::default();
1180        let resolved = registry.resolve(None, Some(ProviderKind::Ollama));
1181
1182        assert_eq!(resolved.resolved.provider, ProviderKind::Ollama);
1183        assert_eq!(resolved.resolved.id, "deepseek-coder:1.3b");
1184        assert!(!resolved.resolved.supports_reasoning);
1185    }
1186
1187    #[test]
1188    fn ollama_requested_model_tag_is_preserved() {
1189        let registry = ModelRegistry::default();
1190        let resolved = registry.resolve(Some("qwen2.5-coder:7b"), Some(ProviderKind::Ollama));
1191
1192        assert_eq!(resolved.resolved.provider, ProviderKind::Ollama);
1193        assert_eq!(resolved.resolved.id, "qwen2.5-coder:7b");
1194        assert!(!resolved.used_fallback);
1195    }
1196
1197    #[test]
1198    fn deepseek_v4_flash_alias_resolves_to_vllm_when_provider_hinted() {
1199        let registry = ModelRegistry::default();
1200        let resolved = registry.resolve(Some("deepseek-v4-flash"), Some(ProviderKind::Vllm));
1201
1202        assert_eq!(resolved.resolved.provider, ProviderKind::Vllm);
1203        assert_eq!(resolved.resolved.id, "deepseek-ai/DeepSeek-V4-Flash");
1204    }
1205
1206    #[test]
1207    fn preserves_requested_model_casing_for_third_party_providers() {
1208        let registry = ModelRegistry::default();
1209        let resolved = registry.resolve(Some("DeepSeek-V4-Pro"), None);
1210
1211        assert_eq!(resolved.resolved.provider, ProviderKind::Deepseek);
1212        assert_eq!(resolved.resolved.id, "DeepSeek-V4-Pro");
1213    }
1214
1215    #[test]
1216    fn registry_casing_takes_priority_over_requested_casing_with_provider_hint() {
1217        let registry = ModelRegistry::default();
1218        let resolved = registry.resolve(Some("DeepSeek-V4-Pro"), Some(ProviderKind::Deepseek));
1219
1220        assert_eq!(resolved.resolved.provider, ProviderKind::Deepseek);
1221        // Registry's canonical id is used even when user provides different casing
1222        assert_eq!(resolved.resolved.id, "deepseek-v4-pro");
1223    }
1224
1225    #[test]
1226    fn preserves_requested_model_casing_without_surrounding_whitespace() {
1227        let registry = ModelRegistry::default();
1228        let resolved = registry.resolve(Some("  DeepSeek-V4-Pro  "), None);
1229
1230        assert_eq!(resolved.resolved.provider, ProviderKind::Deepseek);
1231        assert_eq!(resolved.resolved.id, "DeepSeek-V4-Pro");
1232    }
1233
1234    #[test]
1235    fn alias_match_does_not_override_requested_casing() {
1236        let registry = ModelRegistry::default();
1237        let resolved = registry.resolve(Some("deepseek-reasoner"), None);
1238
1239        assert_eq!(resolved.resolved.provider, ProviderKind::Deepseek);
1240        assert_eq!(resolved.resolved.id, "deepseek-v4-flash");
1241    }
1242
1243    #[test]
1244    fn model_family_classifies_known_model_ids() {
1245        assert_eq!(model_family("deepseek-v4-pro"), ModelFamily::DeepSeek);
1246        assert_eq!(model_family("openai/gpt-5.4"), ModelFamily::OpenAI);
1247        assert_eq!(
1248            model_family("anthropic/claude-opus-4-7"),
1249            ModelFamily::Anthropic
1250        );
1251        assert_eq!(
1252            model_family("meta-llama/llama-3.3-70b-instruct"),
1253            ModelFamily::Meta
1254        );
1255        assert_eq!(model_family("Qwen/Qwen3-Coder"), ModelFamily::Qwen);
1256    }
1257
1258    #[test]
1259    fn model_family_uses_underlying_model_for_router_ids() {
1260        assert_eq!(
1261            model_family("groq/llama-3.3-70b-versatile"),
1262            ModelFamily::Meta
1263        );
1264        assert_eq!(
1265            model_family("openrouter/openai/gpt-5.4"),
1266            ModelFamily::OpenAI
1267        );
1268        assert_eq!(
1269            model_family("fireworks/accounts/fireworks/models/deepseek-v4-pro"),
1270            ModelFamily::DeepSeek
1271        );
1272    }
1273
1274    #[test]
1275    fn model_family_covers_prominent_google_and_mistral_model_names() {
1276        assert_eq!(model_family("google/gemma-3-27b-it"), ModelFamily::Google);
1277        assert_eq!(
1278            model_family("mistralai/mixtral-8x22b"),
1279            ModelFamily::Mistral
1280        );
1281        assert_eq!(model_family("codestral-latest"), ModelFamily::Mistral);
1282    }
1283
1284    #[test]
1285    fn model_family_falls_back_to_inferencer_for_unknown_models() {
1286        assert_eq!(
1287            model_family("custom-gateway/my-private-model"),
1288            ModelFamily::Inferencer
1289        );
1290        assert_eq!(model_family(""), ModelFamily::Inferencer);
1291    }
1292}