Model comparison
GPT-5.4 Mini vs o3
OpenAI
GPT-5.4 Mini
GPT-5 economics for high-volume routine tasks.
OpenAI
o3
OpenAI's mainstream reasoning model - production-viable thinking.
Specs
| Metric | GPT-5.4 Mini | o3 |
|---|---|---|
| Context window | 400K tokens↑ | 200K tokens |
| Input $/1M tokens | $0.750↑ | $2.00 |
| Output $/1M tokens | $4.50↑ | $8.00 |
| Modalities | File · Image · Text | Image · Text · File |
| Open weights | No | No |
Capability differences
| Capability | GPT-5.4 Mini | o3 |
|---|---|---|
| Vision | Yes | No |
| Extended thinking | No | Yes |
| Prompt caching | Yes | No |
Key differences
- -GPT-5.4 Mini offers 400K context; o3 offers 200K.
- -Input pricing: GPT-5.4 Mini at $0.750/1M vs o3 at $2.00/1M.