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/49B |
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 | 128k |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $15.00Amazon Bedrock | — |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | $75.00Amazon Bedrock | — |
| $6,750Amazon Bedrock | — | |
| 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. | 43% | — |
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. | 74.5% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 80.9% | — |
| Overview | ||
| Company | Anthropic | NVIDIA |
| Release date | Aug 5 2025 | Mar 18 2025 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
Claude Opus 4.1vsGPT-6.1 SolLlama Nemotron (Nano/Super)vsGPT-6.1 SolClaude Opus 4.1vsGemini 4 ArgonLlama Nemotron (Nano/Super)vsGemini 4 ArgonClaude Opus 4.1vsMuse Spark OpenLlama Nemotron (Nano/Super)vsMuse Spark OpenClaude Opus 4.1vsGrok 4.7Llama Nemotron (Nano/Super)vsGrok 4.7Claude Opus 4.1vsDeepSeek-V4.1-Flash-1017Llama Nemotron (Nano/Super)vsDeepSeek-V4.1-Flash-1017Claude Opus 4.1vsMistral Large 4Llama Nemotron (Nano/Super)vsMistral Large 4Frequently asked questions
Claude Opus 4.1 and Llama Nemotron (Nano/Super) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Llama Nemotron (Nano/Super) shipped 140 days before Claude Opus 4.1, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (Claude Opus 4.1) vs 128k (Llama Nemotron (Nano/Super)). Claude Opus 4.1 is closed, while Llama Nemotron (Nano/Super) is open weight.
Direct benchmark comparisons are unavailable — Claude Opus 4.1 and Llama Nemotron (Nano/Super) don't publish scores on any of the same benchmarks.