Claude 3.7 Sonnet
claude-3-7-sonnet-20250219
Anthropic · reasoning · api
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Intelligence
Context
200K
Max output
8.2K
Input $/1M
$3.00
Output $/1M
$15.00
Modalities
text · image
Released
24 Feb 2025
Intelligence Index via Artificial Analysis · 0–100, higher is better
AI summary
● machine-written
Claude 3.7 Sonnet: Hybrid reasoning model with extended thinking
Claude 3.7 Sonnet is Anthropic's hybrid reasoning model that combines standard fast responses with optional extended thinking capabilities. It supports both text and image inputs with a 200K token context window and is positioned as the first market offering that integrates reasoning as a built-in capability rather than a separate model. The model is available across multiple platforms including the Anthropic API, Amazon Bedrock, and Google Cloud Vertex AI.
What's new
- Hybrid reasoning: operates as both standard LLM and reasoning model with user-selectable modes
- Extended thinking mode allows users to control thinking budget up to 128K tokens
- State-of-the-art performance on SWE-bench Verified and TAU-bench real-world task evaluations
- Claude Code agentic tool introduced in limited research preview for terminal-based coding tasks
- Same pricing as predecessors despite reasoning capabilities; thinking tokens included in output pricing
Best for
Real-world coding tasks and software engineering problem-solvingComplex instruction-following and reasoning across math, physics, and science domainsFull-stack web development and codebase navigationAgentic workflows with multi-step planning and tool use