Thoughts on OpenAI acquiring Astral and uv/ruff/ty

BlogSimon WillisonMar 19, 2026

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OpenAI acquires Astral β€” the company behind uv, ruff, and ty, three load-bearing pieces of modern Python tooling. Simon on what it means for the Python ecosystem, open source sustainability, and why this acquisition is different from past big-co OSS takeovers.

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Sponsored by: Honeycomb β€” AI agents behave unpredictably. Get the context you need to debug what actually happened. Read the blog The big news this morning: Astral to join OpenAI (on the Astral blog) and OpenAI to acquire Astral (the OpenAI announcement). Astral are the company behind uv, ruff, and…

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