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. | — | 8B |
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. | 200k | 64k |
| 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. | 34% | — |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 72.5% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 79.6% | — |
| Overview | ||
| Company | Anthropic | NVIDIA |
| Release date | May 22 2025 | Oct 23 2026 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
Claude Opus 4vsGPT-6.1 SolNemotron 3.5 Bolt E4B 4GBvsGPT-6.1 SolClaude Opus 4vsGemini 4 ArgonNemotron 3.5 Bolt E4B 4GBvsGemini 4 ArgonClaude Opus 4vsMuse Spark OpenNemotron 3.5 Bolt E4B 4GBvsMuse Spark OpenClaude Opus 4vsGrok 4.7Nemotron 3.5 Bolt E4B 4GBvsGrok 4.7Claude Opus 4vsDeepSeek-V4.1-Flash-1017Nemotron 3.5 Bolt E4B 4GBvsDeepSeek-V4.1-Flash-1017Claude Opus 4vsMistral Large 4Nemotron 3.5 Bolt E4B 4GBvsMistral Large 4Frequently asked questions
Claude Opus 4 and Nemotron 3.5 Bolt E4B 4GB don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Opus 4 shipped 519 days before Nemotron 3.5 Bolt E4B 4GB, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (Claude Opus 4) vs 64k (Nemotron 3.5 Bolt E4B 4GB). Claude Opus 4 is closed, while Nemotron 3.5 Bolt E4B 4GB is open weight.
Direct benchmark comparisons are unavailable — Claude Opus 4 and Nemotron 3.5 Bolt E4B 4GB don't publish scores on any of the same benchmarks.