# OpenAI — How an astrophysicist uses Codex to help simulate black holes

- Company: OpenAI (openai.com)
- Announced: 2026-06-11T00:00:00+00:00
- Subject: GPT / ChatGPT / API
- Models affected: Codex
- Source: https://openai.com/index/using-codex-to-simulate-black-holes
- Record: https://forck.live/items/70-how-an-astrophysicist-uses-codex-to-help-simulate-black-holes

A story about astrophysicist Chi-kwan Chan using Codex to build black hole simulations for studying extreme physics and testing general relativity.

## Evidence

Verbatim from https://openai.com/index/using-codex-to-simulate-black-holes:

> Discover how astrophysicist Chi-kwan Chan uses Codex to build black hole simulations, helping scientists study extreme physics and test Einstein’s theory of general relativity.

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