This model is 18 months old. A newer version of it has since shipped: Claude Opus 5 (2026-07-24). The details below are still accurate for this model — it just is not what we would recommend today.
Claude 3.7 Sonnet
Anthropic🇺🇸 United States
Anthropic's first hybrid reasoning model. Extended thinking mode with state-of-the-art coding.
Context window200K tokens
Input / 1M tokens$3
Output / 1M tokens$15
Version History
claude-3-7-sonnet-20251103minor
Claude 3.7 Sonnet November update with significantly improved agentic task completion rates and more reliable computer use across complex workflows.
claude-3-7-sonnet-20250915patch
Claude 3.7 Sonnet September patch with improved computer use stability and reduced hallucination rate in extended thinking mode.
claude-3-7-sonnet-20250219major
Claude 3.7 Sonnet introduces hybrid reasoning with configurable extended thinking mode. State-of-the-art on SWE-bench, beating all prior models.
Benchmark Scores
Full leaderboard →70.7%
GPQA
89.0%
HumanEval
65.0%
LiveCodeBench
86.4%
MMLU
74.4%
MMLU-Pro
68.0 tokens_per_sec
Speed (tok/s)
70.3%
SWE-bench Verified