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Sonnet 5.5 near-parity with Opus 5.5 on coding tasks

Willison says Sonnet 5.5 appears almost as good as Opus 5.5 on some coding tasks, including viral 3D animation tricks.

Simon Willison·Published Sep 28, 2026

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Sonnet 5.5 appears to be almost as good as Opus 5.5 on some coding tasks, including various viral 3D animation tricks .

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