GPT-5.2vsGrok 4.20 Beta
GPT-5.2 | 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. | 38% | 56%Best |
Coding SWE-Bench VerifiedReal 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. | 80% | — |
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. | 52.9% | 53.3%Best |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 92.4% | — |
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. | 1476Best | 1475 |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1419 | — |
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Dec 11 2025 | Feb 17 2026 |
| Access | Proprietary | Proprietary |
Which is better: GPT-5.2 or Grok 4.20 Beta?
Grok 4.20 Beta leads GPT-5.2 on 2 of the 3 benchmarks they both report (BullshitBench v2, ARC-AGI-2, Arena Elo (Text)). GPT-5.2 shipped 68 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On BullshitBench v2, Grok 4.20 Beta leads at 56% vs GPT-5.2 at 38%. On ARC-AGI-2, Grok 4.20 Beta leads at 53.3% vs GPT-5.2 at 52.9%. On Arena Elo (Text), GPT-5.2 leads at 1476 vs Grok 4.20 Beta at 1475.
Frequently asked questions
GPT-5.2 was released by OpenAI on Dec 11 2025.
Grok 4.20 Beta was released by SpaceXAI on Feb 17 2026.
Grok 4.20 Beta leads on ARC-AGI-2 — GPT-5.2 52.9% vs Grok 4.20 Beta 53.3%.
Other comparisons
GPT-5.2vsClaude Opus 5Grok 4.20 BetavsClaude Opus 5GPT-5.2vsGemini 3.6 FlashGrok 4.20 BetavsGemini 3.6 FlashGPT-5.2vsMuse Spark 1.1Grok 4.20 BetavsMuse Spark 1.1GPT-5.2vsDeepSeek-V4-Flash-0731Grok 4.20 BetavsDeepSeek-V4-Flash-0731GPT-5.2vsMistral Medium 3.5Grok 4.20 BetavsMistral Medium 3.5GPT-5.2vsKimi K3Grok 4.20 BetavsKimi K3