Compare AI models
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 48B | — |
| Overview | ||
| Company | Moonshot AI | SpaceXAI |
| Release date | Oct 30 2025 | Mar 29 2024 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
Kimi LinearvsClaude Sonnet 5.5Grok‑1.5vsClaude Sonnet 5.5Kimi LinearvsGPT-6.1 SolGrok‑1.5vsGPT-6.1 SolKimi LinearvsGemini 4 ArgonGrok‑1.5vsGemini 4 ArgonKimi LinearvsMuse Spark 1.3Grok‑1.5vsMuse Spark 1.3Kimi LinearvsDeepSeek-V4.1-FlashGrok‑1.5vsDeepSeek-V4.1-FlashKimi LinearvsMistral Large 4Grok‑1.5vsMistral Large 4Frequently asked questions
Kimi Linear and Grok‑1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1.5 shipped 580 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.
Kimi Linear is open weight, while Grok‑1.5 is closed.
Direct benchmark comparisons are unavailable — Kimi Linear and Grok‑1.5 don't publish scores on any of the same benchmarks.