Model comparison
o3 vs GPT-5.4
OpenAI
o3
OpenAI's mainstream reasoning model - production-viable thinking.
OpenAI
GPT-5.4
OpenAI's flagship - broadest modality and ecosystem coverage.
Specs
| Metric | o3 | GPT-5.4 |
|---|---|---|
| Context window | 200K tokens | 1.1M tokens↑ |
| Input $/1M tokens | $2.00↑ | $2.50 |
| Output $/1M tokens | $8.00↑ | $15.00 |
| Modalities | Image · Text · File | Text · Image · File |
| Open weights | No | No |
| Released | Apr 2025 | Mar 2026 |
Capability differences
| Capability | o3 | GPT-5.4 |
|---|---|---|
| Vision | No | Yes |
| Prompt caching | No | Yes |
Key differences
- -o3 offers 200K context; GPT-5.4 offers 1.1M.
- -Input pricing: o3 at $2.00/1M vs GPT-5.4 at $2.50/1M.