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Claude Sonnet 4

At a glance

Significantly enhanced over Sonnet 3.7 in coding and reasoning tasks.

75200K ctx$3.00/$15.00 per M#43/92
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AI Output
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Benchmarks
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Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI74.7
Reasoning & Knowledge
Graduate Science66.7%
Math
Math Problems84.4%Competition Math28.9%Research Math4.1%
Coding
Code Editing56.4%
Agentic
Novel Reasoning1.3%
Specs
200K
Context
64K
Max output
May 2025
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Cache write$3.75/M tokens
Web search$0.01/search
Chat with Claude Sonnet 4Go to model