Claude Sonnet 5.5

תקציר מקורי באנגלית<p><strong><a href="https://www.anthropic.com/claude-sonnet-5-5">Claude Sonnet 5.5</a></strong></p> 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.</p> <p><a href="https://tools.simonwillison.net/markdown-svg-renderer?url=https%3A%2F%2Fgist.github.com%2Fsimonw%2F1d85a9be7f3ecce26e7f1569161a0d01">Here are some pelicans riding bicycles</a>. Sonnet 5.5 suffered from <a href="https://simonwillison.net/2026/Sep/22/opus-and-sol-and-luna/#claude-opus-5-5-max-over-thinks-to-the-point-of-breaking">the same bug as Opus 5.5</a>: the "max" thinking effort pelican thought for 128,000 tokens (at a cost of $1.28) before running o