Claude Opus 4

Retired

anthropic/claude-opus-4

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in...

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Context window: 200K
Input: Document · Image · Text
Output: Text
Released: 2025-05-22

Max output: 32K
Knowledge cutoff: 2025-01-31
Weights: Closed
Capabilities: Reasoning, Temperature, Tool call

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ModelRegistry · Catalog updated 2026-09-29