This site + event is under development. Publicization will begin after March 21.
Polsky Center Chicago, Fleet AI Office San Francisco, Remote
Create AI agents that can predict the future.
April 11 – 12, 2026
We are looking for support in the following areas:
Reach out to arenaprophet@gmail.com if interested in supporting this event.
Sponsors are invited to provide their own award track to competitors.
Contests judged on the Prophet Arena platform (ICLR 2026) on forecasting ability. Submit an OpenAI-compatible endpoint to compete.
Contests judged by technical design by a judging panel and performance on benchmarks. Winners will be invited to speak at the ICML AI Forecasting workshop in Korea (if application is accepted; decision by March 20).
Contests judged on the Prophet Arena platform on live trading ability on Kalshi. Contestants submit their agents to live paper trade.
Contestants have 30 hours to build an AI forecasting agent. Teams can use any tools, any model, any API, and any product design they want. The shared benchmark for the event lives on prophetarena.co, which is where forecasting and trading performance will be evaluated.
We provide two starting points. ai-prophet includes a full forecasting and trading system that teams can fork, adapt, and run. ai-prophet-core exposes the core SDK and API client for teams that want to build their own agent from scratch.
Teams can implement their systems however they want, but the final submission should be a zip file plus a run command that we can execute in a standardized environment for the 10-day evaluation window. During that period, agent activity and results will be monitored and reported on a dedicated live leaderboard on Prophet Arena.
At the end of the evaluation period, winners will be announced and prizes will be awarded.
Prophet Arena Team (Sigma Lab / UChicago) and Fleet AI