OpenAI Acquires Statsig for $1.1B, Appoints Founder Vijaye Raji as CTO of Applications

OpenAI has announced a major acquisition as it continues strengthening its Applications business. The company is acquiring Statsig, a leading product experimentation platform, in a $1.1 billion all-stock deal — one of the largest acquisitions in its history.

Alongside the acquisition, Statsig’s founder and CEO, Vijaye Raji, will join OpenAI as Chief Technology Officer of Applications. He will report to Fidji Simo, OpenAI’s recently hired CEO of Applications and the former CEO of Instacart.

Vijaye Raji to Lead ChatGPT, Codex, and Future Applications

As CTO of Applications, Raji will oversee product engineering across ChatGPT, Codex, and new AI products that OpenAI plans to launch. His background — a decade of large-scale product engineering at Meta and building Statsig into a trusted platform for A/B testing and feature management — makes him well-positioned to drive OpenAI’s next phase of innovation.

Bringing Statsig in-house will allow OpenAI to accelerate experimentation, enabling faster iteration and more data-driven product improvements across its Applications portfolio.

Leadership Reshuffle at OpenAI

The acquisition comes as OpenAI makes significant leadership changes:

• Kevin Weil, previously OpenAI’s Chief Product Officer, will now lead a new division called OpenAI for Science, which aims to create AI-driven tools to accelerate scientific discovery. Weil will work closely with Sebastien Bubeck, a prominent OpenAI researcher and former VP of AI at Microsoft.

• Srinivas Narayanan, OpenAI’s current Head of Engineering, will transition into the role of CTO of B2B Applications. In this new position, he will partner with OpenAI’s COO, Brad Lightcap, to expand enterprise-focused offerings.

Meanwhile, Fidji Simo continues to build out OpenAI’s Applications organization, with a focus on scaling products to hundreds of millions of users and businesses.

What Happens to Statsig?

Following regulatory approval, Statsig employees will formally become OpenAI employees. However, OpenAI confirmed that Statsig will continue to operate independently out of its Seattle office, ensuring continuity for existing customers while benefiting from deeper integration with OpenAI’s ecosystem over time.

Why This Matters

This move signals OpenAI’s aggressive push into product development and enterprise solutions. By acquiring Statsig and bringing in Raji’s expertise, OpenAI is cementing its commitment to building safe, reliable, and scalable AI applications that can serve both consumers and businesses worldwide.