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. | 74B | — |
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. | 256k | 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% |
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 50.98% | — |
MCP AtlasMulti-step tool use — Can the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | 52.2% | — |
BrowseCompWeb browsing — Can the AI browse the web and track down hard-to-find answers? Higher is better. | 66.75% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 86.43% | — |
| Overview | ||
| Company | NVIDIA | SpaceXSI |
| Release date | Oct 15 2026 | Nov 19 2025 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
Nemotron 3.5 Bolt 74BvsClaude Haiku 5.5Grok 4.1 FastvsClaude Haiku 5.5Nemotron 3.5 Bolt 74BvsGPT-6.1 SolGrok 4.1 FastvsGPT-6.1 SolNemotron 3.5 Bolt 74BvsGemini 4 ArgonGrok 4.1 FastvsGemini 4 ArgonNemotron 3.5 Bolt 74BvsMuse Spark OpenGrok 4.1 FastvsMuse Spark OpenNemotron 3.5 Bolt 74BvsDeepSeek-V4.1-Flash-1017Grok 4.1 FastvsDeepSeek-V4.1-Flash-1017Nemotron 3.5 Bolt 74BvsMistral Large 4Grok 4.1 FastvsMistral Large 4Frequently asked questions
Nemotron 3.5 Bolt 74B and Grok 4.1 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 4.1 Fast shipped 330 days before Nemotron 3.5 Bolt 74B, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Nemotron 3.5 Bolt 74B) vs 2M (Grok 4.1 Fast). Nemotron 3.5 Bolt 74B is open weight, while Grok 4.1 Fast is closed.
Direct benchmark comparisons are unavailable — Nemotron 3.5 Bolt 74B and Grok 4.1 Fast don't publish scores on any of the same benchmarks.