Model comparison
o1 vs DeepSeek V4 Pro
OpenAI
o1
The first reasoning model — historically important, now superseded.
DeepSeek
DeepSeek V4 Pro
The price collapse — frontier quality at a fraction of the cost.
Specs
| Metric | o1 | DeepSeek V4 Pro |
|---|---|---|
| Context window | 200K tokens | 1.0M tokens↑ |
| Input $/1M tokens | $15.00 | $0.435↑ |
| Output $/1M tokens | $60.00 | $0.870↑ |
| Modalities | Text · Image · File | Text |
| Open weights | No | Yes |
| Released | Dec 2024 | Dec 2024 |
Capability differences
| Capability | o1 | DeepSeek V4 Pro |
|---|---|---|
| Tool use | No | Yes |
| Extended thinking | Yes | No |
| Prompt caching | No | Yes |
| Open weights | No | Yes |
Key differences
- —o1 offers 200K context; DeepSeek V4 Pro offers 1.0M.
- —Input pricing: o1 at $15.00/1M vs DeepSeek V4 Pro at $0.435/1M.
- —DeepSeek V4 Pro is open weights; o1 is proprietary.