OpenAI Acquires Astral, Makers of Python's Fastest Tools Ruff, uv, and ty
OpenAI announced on March 19 that it has entered an agreement to acquire Astral, the company behind uv, Ruff, and ty — three of the most widely adopted Python developer tools with hundreds of millions of downloads per month.
The Astral team will join OpenAI's Codex platform, which has grown to over 2 million users since January 2026. Ruff is a Python linter and formatter that is 10-100x faster than traditional tools like Flake8 and Black, combining 800+ built-in rules in a single Rust-based binary. uv is a package manager that dramatically outperforms pip, and ty is a new type checker completing Astral's Python tooling stack.
OpenAI has committed to continuing support for all of Astral's open-source projects. Founder Charlie Marsh stated: 'We'll keep building in the open, alongside our community — and for the broader Python ecosystem — just as we have from the start.'
The acquisition signals OpenAI's deepening investment in the coding agent infrastructure layer. By integrating the tools that millions of Python developers already depend on directly into Codex, OpenAI is positioning its coding agent to understand and operate Python projects with native-level tooling support — from linting and formatting to dependency management and type checking.
More details: https://astral.sh/blog/openai and https://openai.com/index/openai-to-acquire-astral/
← Back to all articles
The Astral team will join OpenAI's Codex platform, which has grown to over 2 million users since January 2026. Ruff is a Python linter and formatter that is 10-100x faster than traditional tools like Flake8 and Black, combining 800+ built-in rules in a single Rust-based binary. uv is a package manager that dramatically outperforms pip, and ty is a new type checker completing Astral's Python tooling stack.
OpenAI has committed to continuing support for all of Astral's open-source projects. Founder Charlie Marsh stated: 'We'll keep building in the open, alongside our community — and for the broader Python ecosystem — just as we have from the start.'
The acquisition signals OpenAI's deepening investment in the coding agent infrastructure layer. By integrating the tools that millions of Python developers already depend on directly into Codex, OpenAI is positioning its coding agent to understand and operate Python projects with native-level tooling support — from linting and formatting to dependency management and type checking.
More details: https://astral.sh/blog/openai and https://openai.com/index/openai-to-acquire-astral/