Model comparison
o3 vs GPT-5.4 Mini
OpenAI
o3
OpenAI's mainstream reasoning model - production-viable thinking.
OpenAI
GPT-5.4 Mini
GPT-5 economics for high-volume routine tasks.
Specs
| Metric | o3 | GPT-5.4 Mini |
|---|---|---|
| Context window | 200K tokens | 400K tokens↑ |
| Input $/1M tokens | $2.00 | $0.750↑ |
| Output $/1M tokens | $8.00 | $4.50↑ |
| Modalities | Image · Text · File | File · Image · Text |
| Open weights | No | No |
| Released | Apr 2025 | Mar 2026 |
Capability differences
| Capability | o3 | GPT-5.4 Mini |
|---|---|---|
| Vision | No | Yes |
| Extended thinking | Yes | No |
| Prompt caching | No | Yes |
Key differences
- -o3 offers 200K context; GPT-5.4 Mini offers 400K.
- -Input pricing: o3 at $2.00/1M vs GPT-5.4 Mini at $0.750/1M.