Model comparison
o3 vs DeepSeek R1
OpenAI
o3
OpenAI's mainstream reasoning model - production-viable thinking.
DeepSeek
DeepSeek R1
The open-weights reasoning model that reset the cost curve.
Specs
| Metric | o3 | DeepSeek R1 |
|---|---|---|
| Context window | 200K tokens↑ | 64K tokens |
| Input $/1M tokens | $2.00 | $0.700↑ |
| Output $/1M tokens | $8.00 | $2.50↑ |
| Modalities | Image · Text · File | Text |
| Open weights | No | Yes |
| Released | - | Jan 2025 |
Capability differences
| Capability | o3 | DeepSeek R1 |
|---|---|---|
| Tool use | Yes | No |
| Open weights | No | Yes |
Key differences
- -o3 offers 200K context; DeepSeek R1 offers 64K.
- -Input pricing: o3 at $2.00/1M vs DeepSeek R1 at $0.700/1M.
- -DeepSeek R1 is open weights; o3 is proprietary.