Model comparison
GPT-5.4 vs o3
OpenAI
GPT-5.4
OpenAI's flagship - broadest modality and ecosystem coverage.
OpenAI
o3
OpenAI's mainstream reasoning model - production-viable thinking.
Specs
| Metric | GPT-5.4 | o3 |
|---|---|---|
| Context window | 1.1M tokens↑ | 200K tokens |
| Input $/1M tokens | $2.50 | $2.00↑ |
| Output $/1M tokens | $15.00 | $8.00↑ |
| Modalities | Text · Image · File | Image · Text · File |
| Open weights | No | No |
Capability differences
| Capability | GPT-5.4 | o3 |
|---|---|---|
| Vision | Yes | No |
| Prompt caching | Yes | No |
Key differences
- -GPT-5.4 offers 1.1M context; o3 offers 200K.
- -Input pricing: GPT-5.4 at $2.50/1M vs o3 at $2.00/1M.