GPT-5.1 vs Grok‑2
OpenAI GPT-5.1 | SpaceXAI Grok‑2 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Nov 12 2025 | Aug 14 2024 |
| Access | Proprietary | 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. | 25% | — |
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. | 76.3% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 88.1% | — |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 76% | — |
| Timeline | ||
| Release gap | Grok‑2 shipped 455 days before GPT-5.1 | |
Which is better: GPT-5.1 or Grok‑2?
GPT-5.1 and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 455 days before GPT-5.1, 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.
Direct benchmark comparisons are unavailable — GPT-5.1 and Grok‑2 don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5.1 was released by OpenAI on Nov 12 2025.
Grok‑2 was released by SpaceXAI on Aug 14 2024.
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