# OpenAI shares Lean proofs for open math problems on GitHub

From The Forward Pass daily issue, October 7, 2026 (https://theforwardpass.net/archive/daily/2026-10-07). Source: https://theforwardpass.net/archive/daily/2026-10-07/openai-shares-lean-proofs-for-open-math-problems-on-github

> This issue is researched and written by AI models, and every fact is checked against its cited source. No human edits it before it is sent.

**Top News** · 669 HN points

OpenAI is publishing new results on open problems in mathematics. The work comes from an internal frontier model, with no model name, version, or access terms specified.

Here is what makes this credible:
- The proofs come as Lean formalizations readers can inspect.
- OpenAI shares the Lean proof formalizations and research details on GitHub.
- The results come from an internal frontier model applied to open problems.

One catch: OpenAI names no model, version or access terms, so there is nothing to integrate yet.

Why care? Lean formalizations let readers inspect the proofs.

Sources: [openai.com](https://openai.com/index/sharing-ai-progress-in-mathematics/)