LLaMA 3.1vsGrok 4.20 Beta
LLaMA 3.1 | Grok 4.20 Beta | |
|---|---|---|
| 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. | 14% | 56%Best |
Abstract reasoning ARC-AGI-2Puzzle-style tests of abstract reasoning and pattern-finding — the kind of thing people find easy but AIs often struggle with. Higher is better. | — | 53.3% |
Community preference Arena Elo (Text)Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | — | 1475 |
| Overview | ||
| Company | Meta | SpaceXAI |
| Release date | Jul 23 2024 | Feb 17 2026 |
| Access | Open Weight | Proprietary |
Which is better: LLaMA 3.1 or Grok 4.20 Beta?
Grok 4.20 Beta leads LLaMA 3.1 on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 3.1 shipped 574 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
LLaMA 3.1 is open weight, while Grok 4.20 Beta is proprietary.
On BullshitBench v2, Grok 4.20 Beta leads at 56% vs LLaMA 3.1 at 14%.
Frequently asked questions
LLaMA 3.1 was released by Meta on Jul 23 2024.
Grok 4.20 Beta was released by SpaceXAI on Feb 17 2026.
LLaMA 3.1 is an open weight model released by Meta. Grok 4.20 Beta is a proprietary model released by SpaceXAI.
Other comparisons
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