Modal releases Dojo, a library for production-grade LLM training

Modal released Modal Dojo, a training library that provides building blocks, tuned default recipes and an observability dashboard for production-grade LLM post-training. It builds on open-source frameworks Miles and Slime, supports models from half a billion to multi-trillion parameters, and exposes an API and CLI that agents can drive to launch and debug runs. Modal says Axiom Bio used it to scale to 64k-context DeepSeek V4.1 Flash runs on 64 B300s, and Afterquery trains Kimi and DeepSeek at 256k context length.