Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks"
Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens
TL;DRAnthropic's new Opus 5.5 model performs like competitors' top tier at 40% lower cost.
Why it matters: Cheaper high-performance AI reduces operational costs for developers and makes advanced models more accessible.


Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's
TL;DRAnthropic released Claude Opus 5.5 with improved safety controls against risky behavior.
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Anthropic releases Opus 5.5 with lower prices and Fable-level performance
Anthropic's new Claude model is cheaper and performs better than before.
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