Sonnet 5.5 launches: 30% faster and up to 30% cheaper for most workloads
every · x · 2026-09-29
Anthropic ships Claude Sonnet 5.5 — smarter and "more tasteful" than Sonnet 5, positioned as the default when you don't need Opus-level power. It's 30% faster and costs up to 30% less for most work. Developer felixrieseberg demoed game builds with it, and every.to found it worked great at lower effort levels in their game-building experiments, alongside their review "Vibe Check: Sonnet 5.5 Finds Its Place in Claude's Crowded Family".
Related event: Anthropic Launches Claude Sonnet 5.5: 30% Faster, 30% Cheaper(42 posts)→
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