Claude Sonnet 5.5 is available, with claimed speed and cost gains over Sonnet 5
A user relays Anthropic’s claims of more than a 30% speed improvement and up to 30% lower costs for most tasks versus Sonnet 5. The announcement gives no absolute prices or details on how speed was measured.
TLDR
A user says Claude Sonnet 5.5 is available as the second model in the Claude 5.5 family. The post attributes to Anthropic claims of a speed improvement of more than 30% and up to 30% lower costs for most tasks compared with Sonnet 5. The user notes that the announcement provides no absolute prices, speed-testing method or benchmarks to quantify its claimed quality improvement. Savings depend on the task, the user adds.
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