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Claude Sonnet 4

Anthropic·Operational·Released 2025-05-22textvision
Context200k
Max output64k
Input / 1M$3 ↗
Output / 1M$15 ↗
Cached in$0.3
Benchmarks4

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

GPQA Diamond (Epoch AI run)#56/7779.2% ↗
OTIS Mock AIME 2024-2025 (Epoch AI run)#57/7671.1% ↗
AIME 2024 (no extended thinking)#2/233.1% ↗
SWE-bench Verified#24/4572.7% ↗

Compare

vs GPT-6 Astravs GPT-5.6 Solvs GPT-5.6 Terravs GPT-5.6 Lunavs Claude Fable 5.1vs Claude Opus 5vs Claude Sonnet 5vs Claude Haiku 4.5

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Claude Fable 5.1Claude Opus 5Claude Sonnet 5Claude Haiku 4.5Claude Opus 4.8Claude Opus 4.7

Access Claude Sonnet 4 and every other model through one endpoint with automatic failover: Respan gateway.