Model comparison
GPT-5.4 Mini vs Grok 4.20
OpenAI
GPT-5.4 Mini
GPT-5 economics for high-volume routine tasks.
xAI
Grok 4.20
xAI's fourth-generation model with a 2M-token context window.
Specs
| Metric | GPT-5.4 Mini | Grok 4.20 |
|---|---|---|
| Context window | 400K tokens | 2M tokens↑ |
| Input $/1M tokens | $0.750↑ | $1.25 |
| Output $/1M tokens | $4.50 | $2.50↑ |
| Modalities | File · Image · Text | Text · Image · File |
| Open weights | No | No |
Capability differences
| Capability | GPT-5.4 Mini | Grok 4.20 |
|---|---|---|
| Extended thinking | No | Yes |
| Prompt caching | Yes | No |
Key differences
- -GPT-5.4 Mini offers 400K context; Grok 4.20 offers 2M.
- -Input pricing: GPT-5.4 Mini at $0.750/1M vs Grok 4.20 at $1.25/1M.