Google DeepMind publishes Sierra Leone AI tutoring trial results

Measuring the impact of learning with AI in Sierra Leone and beyond

Google DeepMind published results from a pre-registered randomized controlled trial in Sierra Leone. Students using Guided Learning gained 0.258 standard deviations in math over the control group, equal to roughly 1.2 to 1.7 years of normal learning progress in eight weeks.

Why it matters: It gives quantified RCT results and interaction data from a real classroom, showing where AI tutoring helps and where it does not.