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. | 400B | — |
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. | 1M | 2M |
| 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. | $0.1875DigitalOcean | — |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | $0.6525DigitalOcean | — |
| $70.13DigitalOcean | — | |
| 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. | 29% | — |
| Overview | ||
| Company | Meta | SpaceXSI |
| Release date | Apr 5 2025 | Sep 19 2025 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
LLaMA 4 MaverickvsClaude Haiku 5.5Grok 4 FastvsClaude Haiku 5.5LLaMA 4 MaverickvsGPT-6.1 SolGrok 4 FastvsGPT-6.1 SolLLaMA 4 MaverickvsGemini 4 ArgonGrok 4 FastvsGemini 4 ArgonLLaMA 4 MaverickvsDeepSeek-V4.1-Flash-1017Grok 4 FastvsDeepSeek-V4.1-Flash-1017LLaMA 4 MaverickvsMistral Large 4Grok 4 FastvsMistral Large 4LLaMA 4 MaverickvsKimi K3Grok 4 FastvsKimi K3Frequently asked questions
LLaMA 4 Maverick and Grok 4 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 4 Maverick shipped 167 days before Grok 4 Fast, so benchmark comparisons should account for the intervening progress.
Context windows are 1M (LLaMA 4 Maverick) vs 2M (Grok 4 Fast). LLaMA 4 Maverick is open weight, while Grok 4 Fast is closed.
Direct benchmark comparisons are unavailable — LLaMA 4 Maverick and Grok 4 Fast don't publish scores on any of the same benchmarks.