Grok 4.6 vs Kimi K3
Grok 4.6 (xAI) and Kimi K3 (Moonshot AI) compared on price, context window, speed and independent benchmarks. Grok 4.6 both scores higher on the Artificial Analysis Intelligence Index (60.9 vs 59.7) and is cheaper on a blended basis — 2.0× less than Kimi K3.
| Grok 4.6 | Kimi K3 | |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Input $/1M | $2.00 | $3.00 |
| Output $/1M | $6.00 | $15.0 |
| Blended $/1M (3:1) | $3.00 | $6.00 |
| Cached input $/1M | $0.50 | $0.30 |
| Context window | 500K | 1.0M |
| Knowledge cutoff | 2026-02 | — |
| License | proprietary | open weights |
| Speed (tok/s) | 60 | 38 |
| Artificial Analysis Intelligence Index | 60.9 | 59.7 |
| LMArena Elo | 1444 | 1476 |
| GPQA Diamond | 94.9% | 93.5% |
| SWE-bench Verified | — | 93.4% |
| Humanity's Last Exam | 42.9% | 46.9% |
| MMMU | — | 81.6% |