Model comparison
GPT-5.4 Mini vs Grok 3
OpenAI
GPT-5.4 Mini
GPT-5 economics for high-volume routine tasks.
xAI
Grok 3
xAI's third-generation model - superseded by Grok 4.
Specs
| Metric | GPT-5.4 Mini | Grok 3 |
|---|---|---|
| Context window | 400K tokens↑ | 131K tokens |
| Input $/1M tokens | $0.750↑ | $3.00 |
| Output $/1M tokens | $4.50↑ | $15.00 |
| Modalities | File · Image · Text | Text |
| Open weights | No | No |
| Released | Mar 2026 | - |
Capability differences
| Capability | GPT-5.4 Mini | Grok 3 |
|---|---|---|
| Extended thinking | No | Yes |
| Prompt caching | Yes | No |
Key differences
- -GPT-5.4 Mini offers 400K context; Grok 3 offers 131K.
- -Input pricing: GPT-5.4 Mini at $0.750/1M vs Grok 3 at $3.00/1M.