Luke Sonnet

Luke Sonnet

Lead Data Scientist @ GrowthBook

Latest

How GrowthBook Holdouts Work Under the Hood

Most holdouts measure only shipped features. Ours measure everything—including failed experiments. This technical deep dive reveals why we chose reality over clean rooms, and how we built it.

· 4 min read

Holdouts in GrowthBook: The Gold Standard for Measuring Cumulative Impact

Many teams ship features weekly but struggle to measure their true cumulative impact. Holdouts in GrowthBook provide a simple way to maintain a control group across multiple features, answering the critical question: What did all this shipping actually do to our key metrics?

· 4 min read

Flavors of Experimentation in GrowthBook

GrowthBook provides you with 3 different types of experimentation for different purposes: Bandits for picking a winner among many, Safe Rollouts for releasing safely, and Experiments for learning.

· 4 min read

Introducing Multi-Armed Bandits in GrowthBook

Discover how Multi-Armed Bandits revolutionize A/B testing in GrowthBook. Learn to optimize experiments automatically, reduce opportunity costs, and make data-driven decisions faster.

· 5 min read

Simpler, Faster SQL Queries

Experiment analysis queries in GrowthBook now run up to 2X faster! Read about the improvements

· 2 min read

Want to give GrowthBook a try?

In under two minutes, GrowthBook can be set up and ready for feature flagging and A/B testing, whether you use our cloud or self-host.