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Claude Opus 4

Anthropic·Operational·Released 2025-05-22textvision
Context200k
Max output32k
Input / 1M$15 ↗
Output / 1M$75 ↗
Cached in$1.5
Benchmarks6

Benchmarks

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

GPQA Diamond (Epoch AI run)#59/7776.3% ↗
OTIS Mock AIME 2024-2025 (Epoch AI run)#63/7664.4% ↗
SWE-bench Verified (Epoch AI run)#16/2470.7% ↗
AIME 2024 (no extended thinking)#1/233.9% ↗
SWE-bench Verified#25/4572.5% ↗
Terminal-bench43.2% ↗

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

More from Anthropic

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

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