Muse Spark 1.2 vs grok-4-fast-non-reasoning
| Meta Muse Spark 1.2 | xAI grok-4-fast-non-reasoning | |
|---|---|---|
| Vendor | Meta | xAI |
| Context window | 1,048,576 | 2,097,152 |
| Max output | — | 30,000 |
| Reasoning | Yes | No |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image, video, file, audio | text, image |
| Output | text | text |
| Released | 2026-08-05 | 2025-08-27 |