Key Highlights
- OpenAI has entered an agreement to acquire Astral, a company specializing in open source Python development tools
- Astral’s engineering team will integrate into OpenAI’s Codex AI coding assistant division
- Codex has surpassed 2 million weekly active users, marking a threefold increase since the beginning of the year
- This acquisition positions OpenAI to better compete against Anthropic and Cursor in the developer tools sector
- Deal terms remain undisclosed; transaction awaits regulatory clearance
OpenAI revealed on Thursday its plans to acquire Astral, a well-regarded startup that has made its mark creating open source development tools specifically designed for Python programmers.
The Astral team will become part of OpenAI’s organization, where they’ll contribute to the development of Codex, the company’s artificial intelligence-powered coding assistant. The purchase price and other financial details have not been made public.
Astral has cultivated significant credibility within the Python programming community. The company’s suite of tools focuses on enhancing both performance and dependability when developers write Python code.
In a blog post, Charlie Marsh, who founded and leads Astral as CEO, emphasized that the company’s mission remains unchanged following this transaction. “To make programming more productive. To build tools that radically change what it feels like to build software,” he stated.
Marsh provided assurance that Astral’s open source tools will remain maintained and supported once the acquisition is finalized.
OpenAI introduced its Codex platform in the previous year and rolled out a desktop application for the service earlier in 2026. According to the company, Codex has now attracted more than 2 million weekly active users.
This figure demonstrates a threefold surge in the user base since January. During this same timeframe, overall usage has expanded by a factor of five.
Competitive Landscape: OpenAI Challenges Anthropic and Cursor
The market for AI-driven coding tools has experienced rapid expansion throughout the past year. OpenAI finds itself in direct competition with Anthropic, whose Claude Code solution has gained considerable momentum among the developer community.
Cursor represents another competitive force that has attracted a loyal following in the software development space. OpenAI aims to expand Codex’s market share and narrow the competitive distance.
The purchase of Astral remains conditional upon standard closing requirements, including approval from regulatory authorities.
This transaction forms part of OpenAI’s broader acquisition strategy. The organization brought on Albert Lee from Google in December to oversee corporate development initiatives.
OpenAI’s Acquisition Spree Continues
OpenAI completed a $6.4 billion purchase of io, Jony Ive’s AI hardware startup, in May 2025. More recently, the company announced its intention to acquire Promptfoo, a cybersecurity-focused startup.
In January, OpenAI brought Torch, a healthcare technology company, into its portfolio. The Astral transaction extends this expanding series of acquisitions.
OpenAI maintains a strategic partnership with Microsoft. The organization has been broadening its reach across numerous product categories as it navigates intensifying competition in the artificial intelligence sector.
The purchase of Astral represents the company’s latest strategic initiative to bolster its capabilities in AI-enhanced developer tools.
The fivefold increase in Codex usage since January stands as the most current growth metric OpenAI has disclosed regarding the product’s performance.
