Model comparison
DeepSeek R1 vs GPT-5.4
DeepSeek
DeepSeek R1
The open-weights reasoning model that reset the cost curve.
OpenAI
GPT-5.4
OpenAI's flagship - broadest modality and ecosystem coverage.
Specs
| Metric | DeepSeek R1 | GPT-5.4 |
|---|---|---|
| Context window | 164K tokens | 1.1M tokens↑ |
| Input $/1M tokens | $0.700↑ | $2.50 |
| Output $/1M tokens | $2.50↑ | $15.00 |
| Modalities | Text | Text · Image · File |
| Open weights | Yes | No |
| Released | Jan 2025 | Mar 2026 |
Capability differences
| Capability | DeepSeek R1 | GPT-5.4 |
|---|---|---|
| Tool use | No | Yes |
| Vision | No | Yes |
| Prompt caching | No | Yes |
| Open weights | Yes | No |
Key differences
- -DeepSeek R1 offers 164K context; GPT-5.4 offers 1.1M.
- -Input pricing: DeepSeek R1 at $0.700/1M vs GPT-5.4 at $2.50/1M.
- -DeepSeek R1 is open weights; GPT-5.4 is proprietary.