GrowthBook vs Stably AI
Side-by-side comparison of AI visibility scores, market position, and capabilities
SF open-source A/B testing and feature flagging running statistical analysis on existing data warehouses; YC W22 $5M revenue 2024 warehouse-native competing with LaunchDarkly and Statsig for developer experimentation infrastructure.
About
GrowthBook is a San Francisco-based open-source feature flagging and A/B testing platform — backed by Y Combinator (W22) — providing engineering teams and product managers with a self-hostable, warehouse-native experimentation system that connects directly to Snowflake, BigQuery, Redshift, Databricks, and Postgres data warehouses to run A/B tests against existing event data without requiring a separate third-party analytics SDK or data pipeline. Founded in 2020 and generating $5 million in revenue in 2024 with a 21-person team, GrowthBook operates under an open-core model (MIT license for the core platform, paid GrowthBook Cloud for the managed option) that has built a developer-first community and significant self-hosted installed base.
SF YC AI test automation at $1M ARR Dec 2024 with 5 employees; ex-Google/Uber founders with self-healing tests that auto-repair when UI changes helping OpenArt scale to $16M ARR competing with Mabl for zero-flakiness CI testing.
About
Stably AI is a San Francisco-based AI test automation platform — backed by Y Combinator — reaching $1 million in annual revenue in December 2024 with a 5-person team — providing engineering teams with an AI platform that auto-generates, runs, and maintains end-to-end tests in CI/CD pipelines with zero-flakiness guarantees and self-healing capabilities that automatically repair tests when UIs change, replacing the brittle Playwright and Cypress test suites that break with every UI update. Founded in 2023 by ex-Google Chrome infrastructure engineer Jinjing Liang (CEO) and ex-Uber Safety ML engineer Neil Parker (CTO), Stably enables customers like OpenArt (which scaled to $16M ARR with a 10-person engineering team using Stably) to achieve test coverage without dedicated QA engineers.
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