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OpenAI Buys the Tools Developers Already Love

OpenAI has agreed to acquire Astral, the startup behind Python tools uv and Ruff, to power up its Codex AI coding platform.

20 March 2026·Original source →

What happened

OpenAI has agreed to acquire Astral, a startup that makes some of the most widely used open source tools in the Python developer community. The deal brings Astral's team and products, including uv (a package manager with 126 million monthly downloads), Ruff (a code formatter with 179 million monthly downloads), and ty (a type checker), directly into OpenAI's Codex division.

Financial terms were not disclosed, but the move is a clear signal: OpenAI is taking the AI coding race seriously. Its Codex platform already has over 2 million weekly active users, and this acquisition is designed to make Codex work more naturally with the tools developers already use every day. Astral's founder Charlie Marsh confirmed the open source tools will remain free and publicly maintained after the deal closes.

The acquisition comes as OpenAI is under pressure from Anthropic, whose Claude Code tool has gained significant ground among software developers. OpenAI reportedly went into "code red" mode earlier this month after Claude Code began pulling enterprise customers away from its own coding products.

What this means for your business

If your business uses developers, or if you are building software products with AI tools, this is worth watching. OpenAI is investing heavily in becoming the go-to platform for AI-assisted coding. Tools like Codex are already being used to write, test, and review code significantly faster than traditional methods.

For non-technical business owners, the practical upshot is simpler: the AI coding tools available to your team or agency are getting more capable and better integrated every month. If you are not yet exploring AI for software development tasks, the barrier to entry is dropping fast.

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