Statsig ranks #4 in Feature Flags & Experimentation AI search.

Statsig is a Bellevue, WA-based product development platform founded in 2021 by Vijaye Raji, a former Facebook engineering leader. The platform integrates feature flags, A/B experimentation, product analytics, session replay, web analytics, infrastructure analytics, and marketing experiments into a single data infrastructure. Statsig's statistical engine supports Bayesian and frequentist methods, CUPED, sequential testing, multi-arm bandit optimization, and warehouse-native deployment on Snowflake, Databricks, BigQuery, and other warehouses. The company processes over 1 trillion events per day and serves 2.5 billion unique monthly experiment subjects. Customers include OpenAI, Notion, Atlassian, Microsoft, Brex, and Ancestry. In September 2025, Statsig signed a definitive agreement to be acquired by OpenAI.

Statsig is an integrated product development platform combining feature flag management, A/B and multivariate experimentation, product analytics, session replay, web and infrastructure analytics, and no-code marketing experiments. All products share a single data layer and can be deployed cloud-hosted or warehouse-native. The platform is built for engineering, data science, product, and DevOps teams that want to link every code release to measurable product outcomes.