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. | 340B | — |
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. | 4k | 2M |
| These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 19% |
| Overview | ||
| Company | NVIDIA | SpaceXSI |
| Release date | Jun 14 2024 | Nov 19 2025 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
Nemotron-4 340BvsClaude Haiku 5.5Grok 4.1 FastvsClaude Haiku 5.5Nemotron-4 340BvsGPT-6.1 SolGrok 4.1 FastvsGPT-6.1 SolNemotron-4 340BvsGemini 4 ArgonGrok 4.1 FastvsGemini 4 ArgonNemotron-4 340BvsMuse Spark OpenGrok 4.1 FastvsMuse Spark OpenNemotron-4 340BvsDeepSeek-V4.1-Flash-1017Grok 4.1 FastvsDeepSeek-V4.1-Flash-1017Nemotron-4 340BvsMistral Large 4Grok 4.1 FastvsMistral Large 4Frequently asked questions
Nemotron-4 340B and Grok 4.1 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Nemotron-4 340B shipped 523 days before Grok 4.1 Fast, so benchmark comparisons should account for the intervening progress.
Context windows are 4k (Nemotron-4 340B) vs 2M (Grok 4.1 Fast). Nemotron-4 340B is open weight, while Grok 4.1 Fast is closed.
Direct benchmark comparisons are unavailable — Nemotron-4 340B and Grok 4.1 Fast don't publish scores on any of the same benchmarks.