Grok 4.6 vs Muse Spark 1.3
Grok 4.6 (xAI) and Muse Spark 1.3 (Meta) compared on price, context window, speed and independent benchmarks. Grok 4.6 scores higher on the Artificial Analysis Intelligence Index (60.9 vs 60.8), while Muse Spark 1.3 is 1.5× cheaper on a blended basis. Pick Grok 4.6 for the hardest tasks and Muse Spark 1.3 when cost dominates.
| Grok 4.6 | Muse Spark 1.3 | |
|---|---|---|
| Provider | xAI | Meta |
| Input $/1M | $2.00 | $1.25 |
| Output $/1M | $6.00 | $4.25 |
| Blended $/1M (3:1) | $3.00 | $2.00 |
| Cached input $/1M | $0.50 | $0.15 |
| Context window | 500K | 1.0M |
| Knowledge cutoff | 2026-02 | — |
| License | proprietary | proprietary |
| Speed (tok/s) | 60 | 115 |
| Artificial Analysis Intelligence Index | 60.9 | 60.8 |
| LMArena Elo | 1444 | — |
| GPQA Diamond | 94.9% | 94.1% |
| Humanity's Last Exam | 42.9% | 47.5% |