Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | 2.8T | — |
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. | 1M | 1M |
| These models have no shared benchmark scores. | ||
LiveCodeBenchCompetitive coding — Coding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | — | 57% |
| Overview | ||
| Company | Moonshot AI | SpaceXSI |
| Release date | Oct 23 2026 | Feb 17 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Kimi K3.1 Pro HighspeedvsClaude Haiku 5.5Grok 3vsClaude Haiku 5.5Kimi K3.1 Pro HighspeedvsGPT-6.1 SolGrok 3vsGPT-6.1 SolKimi K3.1 Pro HighspeedvsGemini 4 ArgonGrok 3vsGemini 4 ArgonKimi K3.1 Pro HighspeedvsMuse Spark OpenGrok 3vsMuse Spark OpenKimi K3.1 Pro HighspeedvsDeepSeek-V4.1-Flash-1017Grok 3vsDeepSeek-V4.1-Flash-1017Kimi K3.1 Pro HighspeedvsMistral Large 4Grok 3vsMistral Large 4Frequently asked questions
Kimi K3.1 Pro Highspeed and Grok 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 3 shipped 613 days before Kimi K3.1 Pro Highspeed, so benchmark comparisons should account for the intervening progress.
Context windows are 1M (Kimi K3.1 Pro Highspeed) vs 1M (Grok 3).
Direct benchmark comparisons are unavailable — Kimi K3.1 Pro Highspeed and Grok 3 don't publish scores on any of the same benchmarks.