OpenAI Acquires Statsig, Appoints Vijaye Raji as CTO of Applications

OpenAI has acquired experimentation platform Statsig as part of its efforts to scale ChatGPT and develop powerful, user-friendly AI applications for hundreds of millions of users and businesses worldwide.

With the acquisition, Statsig founder and CEO Vijaye Raji will become OpenAI’s Chief Technology Officer of Applications, reporting to CEO of Applications, Fidji Simo.

Raji will lead product engineering for ChatGPT and Codex, overseeing infrastructure, core systems, and product integrity. He brings deep experience from over a decade at Meta and his successful leadership at Statsig.

“Vijaye has a remarkable record of building new consumer and B2B products and systems at scale. He’s joining at a time when our models are opening entirely new ways to build, and his leadership will help turn that progress into safe applications that empower people with many new tools to improve their lives, help companies increase their impact and allow developers to build faster and better products,” Simo said.

Statsig, known for powering A/B testing, feature flagging, and real-time decisioning, has already played a central role in OpenAI’s development workflow. Bringing the platform in-house will boost experimentation capabilities and accelerate product iteration.

Once the acquisition closes, Statsig employees will join OpenAI, while the company continues to operate independently from its Seattle office, ensuring seamless support for existing customers.

"The journey with Statsig has been deeply gratifying, leading me to this moment and giving me conviction that we will continue helping teams ship better software every day," Raji said.

Earlier this year, OpenAI acquired AI-powered coding tool company Windsurf for $3 billion, strengthening its coding assistance offerings and streamlining software development processes for users.

The San Francisco-based startup also acquired io, an AI hardware startup founded by former Apple design chief Jony Ive, for approximately $6.5 billion.