AnthropicAnthropic

Claude 3.7 Sonnet

Extended thinking for deep reasoning

Claude 3.7 Sonnet introduced extended thinking, the ability to reason through problems step by step before responding. This makes it particularly capable at multi-step mathematics, complex coding, and tasks that benefit from deliberate analysis.

Try Claude 3.7 Sonnet

Specifications

Context window200k tokens
Input price$3.00 / 1M tokens
Output price$15.00 / 1M tokens
Credits per query3 cr
Released2025-02
LicenseProprietary

Features

VisionTool useJSON modeFunction callingCodeExtended thinking

Benchmark Scores

What do these mean?

Sourced from official model cards and academic papers. Higher is better.

PhD-level science & reasoning

62.4%

Mathematical olympiad problems

43.3%

Chatbot Arena human preference ranking

1291

Python coding, pass@1 rate

93.7%

Competition-level mathematics

78.8%

General knowledge across 57 academic domains

89%

Multi-turn instruction following (out of 10)

,

Real-world GitHub issue resolution rate

62.3%