Moonshot AI Kimi Linear vs xAI Grok‑2 — side-by-side specs.
Moonshot AI Kimi Linear | xAI Grok‑2 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | xAI |
| Release date | Oct 2025 | Aug 14 2024 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | 48B | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | Grok‑2 shipped 413 days before Kimi Linear | |
Kimi Linear and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 413 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.
Kimi Linear is an open-source / open-weight model; Grok‑2 is proprietary.
Direct benchmark comparisons are unavailable — Kimi Linear and Grok‑2 don't publish scores on any of the same benchmarks.