Simon Willison’s Weblog

Effective A/B Testing. Impressively comprehensive presentation on A/B testing, from theory to practice to statistical analysis of the results.

Posted 13th September 2009 at 11:49 pm

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

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