OpenAI has announced it will acquire Astral, the company behind popular open-source Python tools like uv, Ruff, and ty. The acquisition aims to accelerate OpenAI's Codex platform by integrating Astral's developer tools into AI-assisted software development workflows. Astral's tools already power millions of Python developers' daily workflows.

Codex has seen remarkable growth, with 3x more users and 5x increased usage since the start of the year, now serving over 2 million weekly active users. The acquisition comes as OpenAI seeks to move beyond simple code generation toward AI systems that can participate in entire development lifecycles. By bringing Astral's expertise in Python tooling to Codex, OpenAI plans to enable AI agents to work more directly with the tools developers already rely on.

The Astral team will join OpenAI's Codex group after the acquisition closes, pending regulatory approval. OpenAI plans to continue supporting Astral's open-source projects while exploring deeper integrations that allow Codex to interact more seamlessly with Python development workflows. This move represents OpenAI's commitment to building AI systems that help developers create, learn, and build faster while maintaining the reliability and performance their workflows depend on.