Model comparison
Gemini 2.5 Pro vs Grok 4.20
Gemini 2.5 Pro
Google's bet on massive context and native multimodality.
xAI
Grok 4.20
xAI's fourth-generation model with a 2M-token context window.
Specs
| Metric | Gemini 2.5 Pro | Grok 4.20 |
|---|---|---|
| Context window | 1.0M tokens | 2M tokens↑ |
| Input $/1M tokens | $1.25↑ | $1.25 |
| Output $/1M tokens | $10.00 | $2.50↑ |
| Modalities | Text · Image · File · Audio · Video | Text · Image · File |
| Open weights | No | No |
Capability differences
| Capability | Gemini 2.5 Pro | Grok 4.20 |
|---|---|---|
| Prompt caching | Yes | No |
Key differences
- -Gemini 2.5 Pro offers 1.0M context; Grok 4.20 offers 2M.