Enum ModelCapability 

pub enum ModelCapability {
    Generate,
    Embed,
    Rerank,
    Classify,
    Code,
    Reasoning,
    Summarize,
    ToolUse,
    MultiToolCall,
    Vision,
    VideoUnderstanding,
    AudioUnderstanding,
    Grounding,
    SpeechToText,
    TextToSpeech,
    ImageGeneration,
    VideoGeneration,
}

What a model can do.

Variants

Generate

Text completion / chat generation

Embed

Vector embeddings

Rerank

Cross-encoder relevance scoring (query + document → relevance score). Qwen3-Reranker is the canonical local implementation.

Classify

Label assignment / classification

Code

Code generation, repair, refactoring

Reasoning

Chain-of-thought, planning, analysis

Summarize

Text condensation

ToolUse

Function/tool calling

MultiToolCall

Multiple tool calls in a single response (parallel tool execution)

Vision

Vision / image understanding

VideoUnderstanding

Video understanding (multi-frame sampling + temporal tokens). Distinct from Vision so routing can prefer video-trained models when the caller attaches a video content block.

AudioUnderstanding

Audio understanding (speech + non-speech audio as an input to a chat/reasoning model). Distinct from SpeechToText which is the transcription-only task. Gemma 4 E2B/E4B and Gemini do this; Qwen2.5-VL does not.

Grounding

Visual grounding — structured object-localization output (bounding boxes keyed to object labels) in addition to text.

SpeechToText

Speech recognition / transcription

TextToSpeech

Speech synthesis / text-to-speech

ImageGeneration

Image generation

VideoGeneration

Video generation

Trait Implementations

impl Clone for ModelCapability

fn clone(&self) -> ModelCapability

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ModelCapability

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ModelCapability

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ModelCapability

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ModelCapability

fn eq(&self, other: &ModelCapability) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ModelCapability

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ModelCapability

impl Eq for ModelCapability

impl StructuralPartialEq for ModelCapability