OpenAI has announced a landmark all-stock acquisition of Seattle-based product testing startup Statsig for $1.1 billion, marking one of the largest deals in the ChatGPT maker’s history. This strategic move not only brings industry-leading experimentation and analytics capabilities in-house but also appoints Statsig’s founder and CEO, Vijaye Raji, as Chief Technology Officer of Applications at OpenAI.
Statsig, founded in February 2021 by a team of ex-Meta engineers led by Vijaye Raji, has rapidly gained prominence as a unified platform for feature flagging, A/B testing, and real-time product analytics. Its tools have been adopted by technology leaders such as Eventbrite, SoundCloud, Notion, and early users within OpenAI itself, enabling teams to iterate product features confidently and accelerate development cycles.
Under the terms of the deal, OpenAI will issue new shares to Statsig stakeholders based on its current $300 billion valuation. Vijaye Raji will transition to OpenAI’s leadership team, reporting directly to Fidji Simo, the former Instacart CEO who now heads OpenAI’s Applications division. In his new role, Raji will oversee product engineering for flagship offerings including ChatGPT and the AI coding assistant Codex, ensuring rapid, data-driven rollout of new capabilities and user experiences.
Integrating Statsig’s platform into OpenAI’s workflow promises significant advantages. By leveraging robust experimentation infrastructure, OpenAI’s teams can systematically test model updates, interface changes, and new features with rigorous statistical analysis. This approach reduces reliance on gut instinct, surfaces user insights in real time, and drives continuous improvement of AI applications across consumer and enterprise use cases.
OpenAI stressed that Statsig will continue operating independently from its Seattle office, serving its existing customer base without disruption. Over time, tighter integration is expected to unlock synergies between model development and product deployment, shaping a new paradigm in which AI research and feature rollout are seamlessly connected.
This acquisition follows OpenAI’s broader expansion strategy, which has included the $6.5 billion purchase of AI hardware startup IO earlier in 2025 and the acquisition of analytics database firm Rockset in 2024. By adding Statsig’s experimentation toolkit and leadership expertise, OpenAI strengthens its end-to-end capabilities from core model research to polished, user-facing applications.
As AI becomes integral to countless digital experiences, the ability to test, measure, and refine features rapidly will be a key differentiator. With Statsig’s proven platform and Vijaye Raji’s leadership onboard, OpenAI is poised to accelerate innovation, deliver more reliable and personalized AI services, and expand its footprint across industries in 2025 and beyond.
