Checked fact 35213 Nov 2026AI at work

OpenAI says that using GPT-6 Astra, agents wrote Lean and TLA+ to formalize a theory of Pando that was used to find and fix bugs in the implementation.

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The exact words it rests on

Using GPT‑6 Astra, agents wrote Lean and TLA+ to formalize a “theory of Pando” that we used to find and fix bugs in the implementation, and prove properties of the system.

What the source said when we opened it, on 3 Nov 2026.

The source

Scaling Git at OpenAI
OpenAI · 2026-11-02

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Checked

Checked by the notis newsroom on 3 Nov 2026, against the source above.

In the story

OpenAI reports building Pando, its Git backend, with Codex in 10 weeks 3 Nov 2026

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“OpenAI says that using GPT-6 Astra, agents wrote Lean and TLA+ to formalize a theory of Pando that was used to find and fix bugs in the implementation.” ai notis, checked 3 Nov 2026. Source: Scaling Git at OpenAI (OpenAI). https://ainotis.com/c/3521

As a reference (APA style)

ai notis. (2026, November 3). OpenAI says that using GPT-6 Astra, agents wrote Lean and TLA+ to formalize a theory of Pando that was used to find and fix bugs in the implementation [Checked claim 3521]. ai notis. https://ainotis.com/c/3521

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