GPT-5 vs Grok‑1
OpenAI GPT-5 | xAI Grok‑1 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | xAI |
| Release date | Aug 7 2025 | Nov 3 2023 |
| Access | Proprietary | Open Weight |
| 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. | 21% | — |
| Timeline | ||
| Release gap | Grok‑1 shipped 643 days before GPT-5 | |
Which is better: GPT-5 or Grok‑1?
GPT-5 and Grok‑1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1 shipped 643 days before GPT-5, so benchmark comparisons should account for the intervening progress.
GPT-5 is proprietary, while Grok‑1 is open weight.
Direct benchmark comparisons are unavailable — GPT-5 and Grok‑1 don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5 was released by OpenAI on Aug 7 2025.
Grok‑1 was released by xAI on Nov 3 2023.
GPT-5 is a proprietary model released by OpenAI. Grok‑1 is an open weight model released by xAI.