Statsig unifies feature flags, A/B testing, and product analytics. Free Developer tier, Pro from $150/month, acquired by OpenAI in 2025.
Statsig is a product development platform that combines feature flagging, A/B testing and experimentation, session replay, and product analytics into a single system, aimed at engineering and product teams that want to ship and measure changes without assembling multiple point tools.
The company was founded in 2021 by Vijaye Raji, previously an engineering leader at Facebook, and is headquartered in Bellevue, Washington. Statsig grew quickly, raising a Series A and Series B led by Sequoia Capital before a 100 million dollar Series C led by ICONIQ Growth in May 2025 at a 1.1 billion dollar valuation. In September 2025, OpenAI acquired Statsig in an all-stock deal also valued at 1.1 billion dollars.
Statsig provides unlimited feature flag and config checks, letting engineering teams roll features out gradually and roll them back instantly if something goes wrong. Its experimentation engine runs A/B tests and more advanced experiment designs with statistical rigor built in.
Product and web analytics are integrated directly with experimentation data, so teams can see the downstream impact of a feature flag or experiment on real usage metrics. Session replay capabilities let teams watch how users actually interact with new features, and higher tiers add change reviews and approvals, API controls, warehouse-native deployment, and SSO for larger organizations.
Statsig's Developer tier is free, with no credit card required, and includes 2 million monthly events, unlimited feature flag checks, 50,000 monthly session replays, and unlimited seats. The Pro tier costs 150 dollars per month, includes 5 million events with additional events billed at 0.05 dollars per 1,000, and adds advanced experimentation, advanced analytics, unlimited analytics retention, and change reviews. The Enterprise tier uses custom, volume-based contracts and adds warehouse-native deployment, data integrations, SSO, role-based access control, and HIPAA eligibility.
Yes, Statsig has a free Developer tier with 2 million monthly events, unlimited feature flag checks, and 50,000 monthly session replays.
Statsig was founded in 2021 by Vijaye Raji, a former Facebook engineering leader.
Statsig is headquartered in Bellevue, Washington, United States.
Yes, OpenAI acquired Statsig in September 2025 in an all-stock deal valued at 1.1 billion dollars.
The Pro tier costs 150 dollars per month, including 5 million events, with additional events billed at 0.05 dollars per 1,000.
Statsig combines feature flags and configuration management, A/B testing and experimentation, session replay, and product analytics in one platform.
Yes, Statsig's Enterprise tier offers custom pricing with warehouse-native deployment, SSO, role-based access control, and HIPAA eligibility.
Statsig raised about 153.4 million dollars across a Series A, Series B, and Series C, reaching a 1.1 billion dollar valuation before OpenAI's acquisition.