Gemini Omni Flash Preview vs grok-4-fast-reasoning
| Google Gemini Omni Flash Preview | xAI grok-4-fast-reasoning | |
|---|---|---|
| Vendor | xAI | |
| Context window | 65,536 | 2,097,152 |
| Max output | 32,768 | 30,000 |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| File input | Yes | Yes |
| Input | text, image | text, image |
| Output | video | text |
| Released | 2026-06-30 | 2025-08-27 |