Grok 4.20 Multi-Agent vs Muse Spark 1.3
| xAI Grok 4.20 Multi-Agent | Meta Muse Spark 1.3 | |
|---|---|---|
| Vendor | xAI | Meta |
| Context window | 2,048,000 | 1,048,576 |
| Max output | 1,000,000 | — |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image | text, image, video, file |
| Output | text | text |
| Released | 2026-03-09 | 2026-09-02 |