Simon Willison says loops are becoming obsolete as models handle long tasks natively

teropa · x · 2026-07-23

Loops may be becoming unnecessary for long-horizon model work

Simon Willison argues that loops were a short-lived workaround for models that could not reliably keep working on a long task until they reached a defined goal.

He says newer systems like Fable and GPT-5.6 — and probably Kimi K3 too — can already do this out of the box, without needing an external loop or orchestration layer.

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