Claude Opus 4

Claude Opus 4 by Anthropic — specifications, pricing and published benchmark scores, with community links.

OrganizationAnthropic
Released2025-05
LicenseProprietary
Open weightsNo
ParametersUndisclosed
Context window200,000 tokens
ModalityText, image
Input price$15 / 1M
Output price$75 / 1M

Benchmark scores

  • swe-bench-verified: 72.5
  • gpqa: 79.6
  • mmlu: 88.8
  • aime: 75.5
  • arena-elo: 1414

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