DeepSeek R1-0528vsGrok 4.20 Beta
DeepSeek R1-0528 | 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. | 8% | 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 | DeepSeek | SpaceXAI |
| Release date | May 28 2025 | Feb 17 2026 |
| Access | Open Weight | Proprietary |
Which is better: DeepSeek R1-0528 or Grok 4.20 Beta?
Grok 4.20 Beta leads DeepSeek R1-0528 on 1 of the 1 benchmark they both report (BullshitBench v2). DeepSeek R1-0528 shipped 265 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
DeepSeek R1-0528 is open weight, while Grok 4.20 Beta is proprietary.
On BullshitBench v2, Grok 4.20 Beta leads at 56% vs DeepSeek R1-0528 at 8%.
Frequently asked questions
DeepSeek R1-0528 was released by DeepSeek on May 28 2025.
Grok 4.20 Beta was released by SpaceXAI on Feb 17 2026.
DeepSeek R1-0528 is an open weight model released by DeepSeek. Grok 4.20 Beta is a proprietary model released by SpaceXAI.
Other comparisons
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