Model comparison
Gemini 2.5 Pro vs Grok 3
Gemini 2.5 Pro
Google's bet on massive context and native multimodality.
xAI
Grok 3
xAI's bet on inference compute, wired into X for fresh context.
Specs
| Metric | Gemini 2.5 Pro | Grok 3 |
|---|---|---|
| Context window | 1.0M tokens↑ | 131K tokens |
| Input $/1M tokens | $1.25↑ | $3.00 |
| Output $/1M tokens | $10.00↑ | $15.00 |
| Modalities | Text · Image · File · Audio · Video | Text |
| Open weights | No | No |
Capability differences
| Capability | Gemini 2.5 Pro | Grok 3 |
|---|---|---|
| Prompt caching | Yes | No |
Key differences
- —Gemini 2.5 Pro offers 1.0M context; Grok 3 offers 131K.
- —Input pricing: Gemini 2.5 Pro at $1.25/1M vs Grok 3 at $3.00/1M.