LLaMA 4 Scout vs Grok 4 Fast
Meta LLaMA 4 Scout | SpaceXAI Grok 4 Fast | |
|---|---|---|
| Overview | ||
| Company | Meta | SpaceXAI |
| Release date | Apr 5 2025 | Sep 2025 |
| Access | Open Weight | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given 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% | — |
| Timeline | ||
| Release gap | LLaMA 4 Scout shipped 149 days before Grok 4 Fast | |
Which is better: LLaMA 4 Scout or Grok 4 Fast?
LLaMA 4 Scout 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 Scout shipped 149 days before Grok 4 Fast, so benchmark comparisons should account for the intervening progress.
LLaMA 4 Scout is open weight, while Grok 4 Fast is proprietary.
Direct benchmark comparisons are unavailable — LLaMA 4 Scout and Grok 4 Fast don't publish scores on any of the same benchmarks.
Frequently asked questions
LLaMA 4 Scout was released by Meta on Apr 5 2025.
Grok 4 Fast was released by SpaceXAI on Sep 2025.
LLaMA 4 Scout is an open weight model released by Meta. Grok 4 Fast is a proprietary model released by SpaceXAI.
Other comparisons
LLaMA 4 Scout vs Claude Sonnet 5Grok 4 Fast vs Claude Sonnet 5LLaMA 4 Scout vs GPT-5.6 SolGrok 4 Fast vs GPT-5.6 SolLLaMA 4 Scout vs Gemini OmniGrok 4 Fast vs Gemini OmniLLaMA 4 Scout vs DeepSeek-V4-ProGrok 4 Fast vs DeepSeek-V4-ProLLaMA 4 Scout vs Mistral Medium 3.5Grok 4 Fast vs Mistral Medium 3.5LLaMA 4 Scout vs Kimi K2.7 CodeGrok 4 Fast vs Kimi K2.7 Code