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DeepSeek R1
11
Open-source reasoning model rivaling o1 at a fraction of the cost
Open Sourceopen-source
About
DeepSeek R1 is a powerful open-source reasoning model that achieves competitive performance with OpenAI's o1 series. The latest version (R1 0528) features 163K context and is available for free self-hosting or via API at just $0.40/1M input tokens. DeepSeek also offers distilled variants (Qwen 32B, Llama 70B) for efficient deployment. A breakthrough in open-source AI reasoning capabilities.
Details
| Modality | text |
| Context Window | 163.8K tokens |
| Parameters | 671B (MoE) |
| Release Date | Jan 20, 2025 |
| API Available | Yes |
| Hosting | self-hosted, api, together-ai, replicate |
| Output Speed | 90 tokens/sec |
| Time to First Token | 2000ms |
| Quality Index | 84/100 |
| Coding Index | 72/100 |
| Reasoning Index | 95/100 |
Benchmarks
Chatbot Arena ELO
1440/1500
MMLU-Pro
82/100
SWE-bench Verified
49.2/100
MATH-500
97.3/100
GPQA Diamond
71/100
HumanEval
91.6/100
AIME 2025
87.5/100
Resources
Tags
reasoningopen-sourcechain-of-thoughtself-hostedfine-tunablecost-effectiveopen-weight
Quick Info
- Organization
- DeepSeek
- Pricing
- Free (self-hosted) / $0.40/1M input tokens (API)
- Free Tier
- Yes
- Popularity
- 57/100
- Stars
- 70.0K
- Updated
- Feb 19, 2026
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