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Claude Sonnet 5.5

Claude Sonnet 5.5 New Sonnet model from Anthropic today. They say it "runs 30%+ faster, and costs up to 30% less for most work" - it's priced the same as Sonnet 5 but appears to beat it on every benchmark, and should be cheaper to run as well. Here are some pelicans riding bicycles . Sonnet 5.5 suf…

Read the full story at Simon Willison's Weblog ↗

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  1. 2026-09-28 22:07 · Simon Willison's Weblog
    Claude Sonnet 5.5

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