Prime Intellect ships full post-training stack as Extropic runs custom RL with it
beffjezos · x · 2026-10-02
Prime Intellect and Extropic demoed an end-to-end custom post-training pipeline: Extropic designed the tasks and rewards, while Prime Intellect handled RL infrastructure — verifiers for building the environment, Hosted Training for the RL loop, Prime Sandboxes for executing model code and returning execution scores, and Prime Inference for serving the LLM judge and frontier baselines. The pitch: everyone should post-train their own custom models, and this stack makes it far easier.
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