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Anthropic launched Claude Opus 5.5 on September 22, 2026, as the first model in its Claude 5.5 family. It is available in Claude Code and the Claude Platform at $4 per million input tokens and $20 per million output tokens, with cache reads at $0.20 per million. Anthropic says it is about 30% faster and 40% cheaper per task than Opus 5 on typical workloads, while Claude Code subscribers get higher five-hour limits and a banked reset.
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