Moonshot AI Kimi K1.5 | xAI Grok 4.20 Beta | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | xAI |
| Release date | Jan 20 2025 | Feb 17 2026 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | 128k | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | Kimi K1.5 shipped 393 days before Grok 4.20 Beta | |
Kimi K1.5 and Grok 4.20 Beta don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi K1.5 shipped 393 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Kimi K1.5 and Grok 4.20 Beta don't publish scores on any of the same benchmarks.