The Guaranteed Safe AI (GSAI) Summit was a 2-day gathering in San Francisco on March 8-9, 2025. Leading researchers, funders, and experts of industry gathered to identify bottlenecks and advance the paradigm of guaranteed safe AI. The summit set out to advance research, collaboration, and forward progress in the field. The agenda included multiple breakout sessions for structured discussions, unstructured time for collaborations, and presentations from Yoshua Bengio, Stuart Russell, Luke Ong, Max Tegmark, Dawn Song, Steve Omohundro, Clark Barrett, davidad, and Sanjit Seshia.