Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
by Anthropic|1M context|$4.00/M input tokens|$20.00/M output tokens
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Available providers for this model, with details on pricing, context limits, and real-time health metrics.