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Claude Opus 4 specs, prices, where it runs and its benchmark standing

closed weights · top 10 on 1 of 9 · released May 14, 2025

Facts

Provider
Anthropic
Release date
May 14, 2025
Boards
Parameters
Not disclosed by Anthropic
Modalities
Text, Image to Text
Boards
License
Proprietary
LMArena
Weights
Closed weights
Benchmarks
9 boards captured

Versions and release history

9 versions in this line since May 14, 2025, from Pricing, OpenRouter and the boards.

VersionReleased
Claude Opus 5.5Sep 22, 20266 weeks ago
Claude Opus 5Jul 24, 20263 months ago
Claude Opus 4.8May 28, 20265 months ago
Claude Opus 4.7Apr 16, 20266 months ago
Claude Opus 4.6Feb 5, 20269 months ago
Claude Opus 4.5Nov 24, 202511 months ago
Claude Opus 4.1Aug 5, 20251 year ago
Claude Opus 4this modelMay 14, 20251 year ago
Claude Opus 3
Category ranks, more models and catalog changes