DeepSeek-R1
AI Model
Reasoning
Prior generation
The open reasoning model that erased $600B of NVIDIA's market cap in a day.
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R1 (January 20, 2025) matched o1-class reasoning and published how: large-scale reinforcement learning on verifiable rewards, with the R1-Zero ablation showing reasoning emerging from RL alone. Released MIT-licensed with distilled small variants, it topped app stores, triggered the January 27 market convulsion (NVIDIA −~17%, ~$589B in a day), and reset assumptions about the cost of frontier capability. Its paper later appeared on the cover of Nature.
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Record reviewed as of 2026-08-31 — see Methodology.