GPT-6-Astra Lean proof cuts prime gap bound from 240 to 186, days after previous record
scaling01 · x · 2026-09-04
An OpenAI repo now contains a Lean formalization, proved by GPT-6-Astra, showing there are infinitely many pairs of consecutive primes with distance at most 186.
- The previous best bound of 240 was published only days earlier, on Aug 31.
- The rapid improvement underscores how fast LLM-plus-Lean is advancing frontier mathematics.
Related event: GPT-6-Astra Proves Prime Gaps ≤186 in Lean as Records Fall in Days(22 posts)→
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