Claude 3.7 Sonnet Thinking - Starrise AI

Claude 3.7 Sonnet Thinking is the Extended Thinking version of Claude 3.7 Sonnet, available through Starrise AI via OpenAI-compatible interface. Extended Thinking is enabled by default — the model performs step-by-step internal reasoning before generating a response, significantly improving accuracy on complex tasks.

Key Capabilities

OpenAI-compatible — Drop-in replacement for the OpenAI SDK, no other code changes needed
Extended Thinking — Step-by-step internal reasoning enabled by default
Deep reasoning — Expert at mathematics, logic, and multi-step problem solving
Long context — Supports large document processing and multi-turn conversations
Streaming — Real-time token streaming via SSE

Quick Example

curl https://ai.alad.com/v1/messages \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-3-7-sonnet-20250219-thinking",
    "messages": [
      { "role": "user", "content": "Solve step by step: A train travels 120 km in 2 hours, then slows down and travels 80 km in 3 hours. What is the average speed for the entire journey?" }
    ]
  }'

Parameters

Parameter	Type	Required	Description
`model`	string	Yes	Fixed value: `claude-3-7-sonnet-20250219-thinking`
`messages`	array	Yes	Array of `{ role, content }` objects
`max_tokens`	integer	No	Maximum number of tokens to generate
`temperature`	float	No	`0`–`2`, controls randomness, default `1`
`stream`	boolean	No	Enable SSE streaming, default `false`
`top_p`	float	No	Nucleus sampling threshold, default `1`
`stop`	string / array	No	Sequences where generation stops

API Reference

View the interactive API Playground for Claude 3.7 Sonnet Thinking.

Claude 3.7 Sonnet Claude 3.5 Sonnet

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