Model
claude-sonnet-5
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- Models & capabilities 2
- Safety & alignment 1
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
Anthropic launches Claude Sonnet 5
Priced at $3/$15 per million input/output tokens against Opus 4.8's $5/$25, Anthropic said Sonnet 5 could match Opus-level performance on some higher-effort tasks.
Models & capabilities