GPT-6 Astra pushes twin prime gap from 246 down to 186, with Lean formalization
weijie444 · x · 2026-09-04
Developer weijie444 announces that GPT-6 Astra made verifiable progress on the twin prime conjecture, pushing the known prime gap from 246 down to 186 with a Lean formalization. The post links the paper plus the model's chain of thought, showing the improvement was iterative. The author describes witnessing the model advance a problem he has revered since childhood — inspired by Yitang Zhang's legendary work — as surreal.
Related event: GPT-6-Astra Proves Prime Gaps ≤186 in Lean as Records Fall in Days(22 posts)→
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