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. | 16B | — |
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 | Apr 10 2025 | Jul 9 2025 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
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Kimi-VL and Grok 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi-VL shipped 90 days before Grok 4, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (Kimi-VL) vs 256k (Grok 4). Kimi-VL is open weight, while Grok 4 is closed.
Direct benchmark comparisons are unavailable — Kimi-VL and Grok 4 don't publish scores on any of the same benchmarks.