Claude official tweet shows Sonnet 5 vs Sonnet 5.5 side-by-side demo, hinting at launch
EricBuess · x · 2026-09-29
The official Claude account retweeted a demo by @kevintngo: the history of dinosaurs animated in JavaScript from the same prompt, comparing Sonnet 5 vs Sonnet 5.5 outputs. It's a rare official sighting of the Sonnet 5.5 version number, fueling launch speculation.
Related event: Anthropic Launches Claude Sonnet 5.5: Over 30% Faster, Up to 30% Cheaper(58 posts)→
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