openrouter_reasoning/
openrouter_reasoning.rs

1use openai_api_rs::v1::api::OpenAIClient;
2use openai_api_rs::v1::chat_completion::{
3    self, ChatCompletionRequest, Reasoning, ReasoningEffort, ReasoningMode,
4};
5use std::env;
6
7#[tokio::main]
8async fn main() -> Result<(), Box<dyn std::error::Error>> {
9    let api_key = env::var("OPENROUTER_API_KEY").unwrap().to_string();
10    let mut client = OpenAIClient::builder()
11        .with_endpoint("https://openrouter.ai/api/v1")
12        .with_api_key(api_key)
13        .build()?;
14
15    // Example 1: Using reasoning with effort
16    let mut req = ChatCompletionRequest::new(
17        "x-ai/grok-3-mini".to_string(), // Grok model that supports reasoning
18        vec![chat_completion::ChatCompletionMessage {
19            role: chat_completion::MessageRole::user,
20            content: chat_completion::Content::Text(String::from(
21                "Explain quantum computing in simple terms.",
22            )),
23            name: None,
24            tool_calls: None,
25            tool_call_id: None,
26        }],
27    );
28
29    // Set reasoning with high effort
30    req.reasoning = Some(Reasoning {
31        mode: Some(ReasoningMode::Effort {
32            effort: ReasoningEffort::High,
33        }),
34        exclude: Some(false), // Include reasoning in response
35        enabled: None,
36    });
37
38    let result = client.chat_completion(req).await?;
39    println!("Content: {:?}", result.choices[0].message.content);
40
41    // Example 2: Using reasoning with max_tokens
42    let mut req2 = ChatCompletionRequest::new(
43        "anthropic/claude-4-sonnet".to_string(), // Claude model that supports max_tokens
44        vec![chat_completion::ChatCompletionMessage {
45            role: chat_completion::MessageRole::user,
46            content: chat_completion::Content::Text(String::from(
47                "What's the most efficient sorting algorithm?",
48            )),
49            name: None,
50            tool_calls: None,
51            tool_call_id: None,
52        }],
53    );
54
55    // Set reasoning with max_tokens
56    req2.reasoning = Some(Reasoning {
57        mode: Some(ReasoningMode::MaxTokens { max_tokens: 2000 }),
58        exclude: None,
59        enabled: None,
60    });
61
62    let result2 = client.chat_completion(req2).await?;
63    println!("Content: {:?}", result2.choices[0].message.content);
64
65    Ok(())
66}
67
68// OPENROUTER_API_KEY=xxxx cargo run --package openai-api-rs --example openrouter_reasoning
openrouter_reasoning/openrouter_reasoning.rs

openrouter_reasoning/
openrouter_reasoning.rs
