River AI blog

· The River AI Team Custom Losses at Scale
with River Symbolic Engine Write custom objectives in PyTorch, from decision models to score-centered RL, and run them end-to-end on River’s distributed training backend. Read the post A blue loss landscape with peaks and valleys, crossed by a river flowing over its edge
A glass cube holding a glowing green lattice, floating in ink-wash clouds Oct 15, 2026 · The River AI Team Announcing Nemotron 3.5 Super VL on the River API An ink-wash database stack on a rocky hill beside a winding mountain river Oct 6, 2026 · The River AI Team Achieving Frontier Text-to-SQL with the River API A blue notebook with the River logo lying in ink-wash grass among white blossoms Oct 6, 2026 · The River AI Team Introducing River Recipes A blue watercolor of a misty river winding through pine forests toward a granite dome, with the words "Series A" Aug 11, 2026 · The River AI team River AI raises $1.1B in funding across Series Seed and Series A Portrait of Igor Babuschkin Jun 10, 2026 · Igor Babuschkin Introducing River AI