Anthropic’s cheaper Opus arrives weeks before its IPO

Anthropic released Claude Opus 5.5 on Tuesday at $4 per million input tokens and $20 per million output, below the $5 and $25 that Opus 5 has carried since July, and says it performs similarly to the more expensive Fable 5.1 on most work. It is the first model since Dario Amodei called for third-party […]
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