DeepSeek R1 Zero
by DeepSeek
DeepSeek R1 Zero is a model from DeepSeek, released on January 20, 2025. It ranks #139 of 220 models by Intelligence Score with a score of 16.
DeepSeek-R1-Zero, a model trained via large-scale reinforcement learning (RL) without supervised fine-tuning (SFT) as a preliminary step, demonstrated remarkable performance on reasoning. With RL, DeepSeek-R1-Zero naturally emerged with numerous powerful and interesting reasoning behaviors. However, DeepSeek-R1-Zero encounters challenges such as endless repetition, poor readability, and language mixing. To address these issues and further enhance reasoning performance, we introduce DeepSeek-R1, which incorporates cold-start data before RL. DeepSeek-R1 achieves performance comparable to OpenAI-o1 across math, code, and reasoning tasks.
Key specs
| Provider | DeepSeek |
|---|---|
| Release date | 2025-01-20 |
| License | open source |
| Intelligence Score | 16 |
| Coding index | 4.2 |
Quick answers
Is DeepSeek R1 Zero open source?
Yes. DeepSeek R1 Zero is an open model released under the open source license.
When was DeepSeek R1 Zero released?
DeepSeek released DeepSeek R1 Zero on January 20, 2025.
How does DeepSeek R1 Zero compare to Claude Opus 5.5 (Reasoning)?
DeepSeek R1 Zero scores 16 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1.
Compare on the AI leaderboard · All AI models
More models from DeepSeek
- DeepSeek-V4.1-Flash (Reasoning) — DeepSeek
- DeepSeek-V4-Pro-0813 (Reasoning) — DeepSeek
- DeepSeek-V4-Flash-Vision-Exp (Reasoning) — DeepSeek
- DeepSeek-V4-Flash-0423 (Reasoning) — DeepSeek
- DeepSeek-V3.2 (Thinking) (Reasoning) — DeepSeek
- DeepSeek-R1-0528 — DeepSeek