OpenAI announced on Thursday its agreement to acquire Ona, a startup specializing in secure, pre-configured cloud environments for artificial intelligence agents, in a move aimed at strengthening its AI coding assistant, Codex [1]. According to OpenAI, Ona's technology will enable Codex to handle longer-running tasks and facilitate broader deployment of AI agents that can independently complete tasks for users [1]. The financial terms of the acquisition were not disclosed, and the deal remains subject to customary closing conditions. Upon completion, Ona's staff will join OpenAI and contribute to the Codex team [1].
Ona CEO Johannes Landgraf expressed optimism about the acquisition, stating, "I always thought selling the company would feel like an ending. Instead, it feels like our life's work just got bigger and more important" [1]. The acquisition comes as OpenAI continues to invest heavily in Codex, which now boasts more than 5 million weekly active users, up from 3 million in April [1]. This surge in users reflects the growing adoption of AI agents among software developers. OpenAI faces stiff competition from Anthropic, whose own AI coding assistant, Claude Code, has fueled the company's rapid growth, though Anthropic has not disclosed its user numbers [1].
In addition to the Ona deal, OpenAI has pursued several other acquisitions to maintain its competitive edge, including the purchase of cybersecurity startup Promptfoo in March, health-care tech startup Torch for approximately $60 million in January, and the acquisition of Software Applications and Jony Ive's AI devices startup io for over $6 billion in 2025 [1]. OpenAI also confidentially filed its prospectus with the Securities and Exchange Commission on Monday, following a similar move by Anthropic [1].
The broader AI and technology market is experiencing significant activity, with Elon Musk's SpaceX, which merged with his AI startup xAI earlier this year, set to begin trading on Friday in what is expected to be the largest public market debut in history [1].
CONCLUSION
OpenAI's acquisition of Ona underscores its commitment to advancing Codex and maintaining leadership in the competitive AI coding assistant market. With user numbers rising and ongoing investments in technology and talent, OpenAI is positioning itself to meet growing demand and respond to rival innovations. The deal is part of a broader trend of consolidation and expansion in the AI sector.