Compare AI models
| Specifications | ||
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 128k | 256k |
| Overview | ||
| Company | Moonshot AI | SpaceXSI |
| Release date | Jan 20 2025 | Jul 9 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Kimi K1.5vsClaude Haiku 5.5Grok 4vsClaude Haiku 5.5Kimi K1.5vsGPT-6.1 SolGrok 4vsGPT-6.1 SolKimi K1.5vsGemini 4 ArgonGrok 4vsGemini 4 ArgonKimi K1.5vsMuse Spark OpenGrok 4vsMuse Spark OpenKimi K1.5vsDeepSeek-V4.1-Flash-1017Grok 4vsDeepSeek-V4.1-Flash-1017Kimi K1.5vsMistral Large 4Grok 4vsMistral Large 4Frequently asked questions
Kimi K1.5 and Grok 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi K1.5 shipped 170 days before Grok 4, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (Kimi K1.5) vs 256k (Grok 4).
Direct benchmark comparisons are unavailable — Kimi K1.5 and Grok 4 don't publish scores on any of the same benchmarks.