R1 is a useful anchor because it pairs a strong claim with an unusual amount of openness — weights plus a recipe centered on GRPO and rule-verifiable rewards. That makes it checkable in a way most frontier reasoning systems are not. Start with our GRPO explainer for the algorithm, then read the report for the training details.
SIGNAL · SIGNALS
DeepSeek-R1: RL-trained reasoning with open weights
The reproducible part is the method, not a leaderboard cell: group-relative RL on verifiable rewards, with open weights to probe. It is the cleanest public artifact for understanding the reasoning-model training loop.
1 MINBY Frontier Checkpoint Editorial
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- arXiv:2501.12948 ↗model · major