London-based AI startup Mantic has closed a $25 million seed round led by Radical Ventures, with Microsoft’s M12 and Balderton Capital participating. The company develops medium-term forecasting systems focused on geopolitical shifts, economic turning points and other uncertain events. Its system beat every human participant and nearly all competing bots in the Metaculus Cup this past summer. Mantic describes its method as judgmental forecasting, combining human-style research and reasoning with historical data backtesting to assess how its predictions perform against real outcomes. Founded in 2024 by former Google DeepMind scientist Toby Shevlane and Cambridge machine learning PhD holder Ben Day, the company also includes alumni from DeepMind and major financial institutions including Citadel. Mantic had previously raised approximately $4 million in pre-seed funding in 2025 and had demonstrated state-of-the-art accuracy on Metaculus benchmarks before its cup victory. The company says it is attracting interest from enterprise clients and government agencies globally, while the new funding will support capability expansion, accuracy improvements and team growth.