ai-trains-ai - RL agent that autonomously trains AI models

Show HN: I RL-trained an agent that trains models with RL (for –$1.3k)

ai-trains-ai is an open-source project featuring an AI agent trained via Reinforcement Learning to autonomously design and execute training pipelines for other models. Built on the Tinker framework and leveraging Runpod GPUs, this agent writes complete prime-rl jobs, including environments, rewards, and hyperparameters, to teach small models specific tasks. The system demonstrates a meta-learning breakthrough where the agent improves its own training strategies over time, successfully transferring skills to unseen task families. Everything, from the LoRA adapter weights to the orchestration scripts, is fully open-sourced for the community to explore and extend.

"The agent started making better models, not just working ones."