Model
claude-opus-5
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- Models & capabilities 2
- Safety & alignment 1
Anthropic launches Claude Opus 5
Anthropic said the model came close to its flagship Fable 5 on several benchmarks at half the price, while costing the same as its Opus 4.8 predecessor.
Models & capabilities
Claude Opus 5 system card published
Anthropic reports Opus 5 shows no new concerning alignment properties and assesses overall alignment risk as very low, alongside a model-welfare discussion.
Safety & alignment · Models & capabilities