Kimi K3 vs grok-4-fast-non-reasoning
| Moonshot Kimi K3 | xAI grok-4-fast-non-reasoning | |
|---|---|---|
| Vendor | Moonshot | xAI |
| Context window | 1,048,576 | 2,097,152 |
| Max output | 1,048,576 | 30,000 |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image, video | text, image |
| Output | text | text |
| Released | 2026-07-16 | 2025-08-27 |