Definition
Plain language
A published RL pipeline used as a high-cost baseline for reasoning model training.
As stated in the literature
An open recipe for large-scale PPO training of reasoning models, used as a cost-and-quality reference point in the ReasonMaxxer comparisons (estimated ~$103K to train a 32B reasoning model).
Why it matters: It anchors cost expectations for reasoning-model training and lets cheaper recipes show concretely how much they save.
For example, a team might cite Open-Reasoner-Zero's roughly $103K training cost as the reference for what a 32B reasoning model 'should' cost.
Heard on the show
“There's a published RL pipeline called Open-Reasoner-Zero that does PPO at scale on this model.”Episode 026 — What RL Actually Does to Language Models, at the Token Level