OpenAI acquires Astral to expand Codex developer tools

Astral is being acquired by OpenAI as developer tooling becomes a bigger focus, with the deal aimed at boosting the capabilities of its Codex platform. The move is expected to bring widely used open-source Python tools into the ecosystem, including uv, Ruff, and ty, which are already embedded in millions of developer workflows.

The acquisition is intended to strengthen Codex’s role across the full software development lifecycle, moving beyond code generation toward more integrated and autonomous systems.

The company has positioned Codex as a system that can plan changes, modify codebases, run tools, and verify results, with usage already growing rapidly. OpenAI reported a threefold increase in users and a fivefold increase in activity this year, bringing its total to more than 2 million weekly active users.

Astral’s tools are seen as a natural fit for this vision, given their role in managing dependencies, enforcing code quality, and improving reliability in Python-based development. Integrating these tools could allow AI agents to interact more directly with the environments developers already use.

The acquisition also reinforces the importance of Python as a core language in modern software development, particularly across AI, data science, and backend systems. OpenAI said it plans to continue supporting Astral’s open-source projects while exploring deeper integration with Codex.

The deal remains subject to regulatory approval, and both companies will operate independently until completion. Once finalised, Astral’s team is expected to join OpenAI’s Codex division as the company continues building AI systems designed to collaborate across the development workflow.

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