Anthropic launches Claude Opus 5.5 with lower API costs
Anthropic says Opus 5.5 matches Fable 5.1 on most work while cutting typical Opus 5 runtime costs by 40%.
The model is available as `claude-opus-5-5` across Anthropic’s own platforms and major cloud providers. API pricing is $4 per million input tokens and $20 per million output tokens, with faster default output and a higher-priced fast mode for Claude Code and the Claude Platform. Anthropic is also raising usage limits for Pro, Max, and Team plans. Coding, agent safety, and knowledge-work accuracy are the main areas Anthropic highlights in the release. TestingCatalog's note
The model is available as `claude-opus-5-5` across Anthropic’s own platforms and major cloud providers. API pricing is $4 per million input tokens and $20 per million output tokens, with faster default output and a higher-priced fast mode for Claude Code and the Claude Platform. Anthropic is also raising usage limits for Pro, Max, and Team plans. Coding, agent safety, and knowledge-work accuracy are the main areas Anthropic highlights in the release. TestingCatalog's note
score 9