YC W25 · Active
Osmosis
Reinforcement Learning (RL) for AI Agents
Website
https://osmosis.ai/About
Osmosis is a post-training platform that helps companies fine-tune language models using reinforcement learning. We work with fast-growing AI companies to train task/domain-specific models that beat foundation models on performance, cost, and latency. Our platform handles compute orchestration, reward modeling, and training run observability as a CLI-based product usable by developers and agents.