Dress Rehearsal

Summit Simulator lets you test a meeting before you hold it. Organizers of high-stakes gatherings, like an AI-safety summit with governments, labs, unions and civil society, only find out if the agenda worked after everyone has flown home. Usually it didn't: powerful voices dominate the big sessions, people only talk to their own side, and the final deal leaves half the room out. We rehearse the day first. Deep Research builds 10 realistic guests with real positions and red lines. Gemini Flash plays them through every session of a one-day summit, and a skeptical Flash judge scores the result: did views move, did everyone get heard, did rival sides agree on anything? Gemini 4 Argon reads the transcript, explains in plain English what went wrong, and redesigns the agenda. Then it runs again. A 3D venue replays each session, and Argon checks screenshots of it to see whether last round's fixes actually worked. In three rounds the score went from 32 to 74 out of 100, and the visual score from 2 to 8.2. When you approve a plan, the Antigravity agent writes a personal briefing packet for each guest plus a calendar and PDF bundle.