o4-mini vs Grok‑1
OpenAI o4-mini | xAI Grok‑1 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | xAI |
| Release date | Apr 16 2025 | Nov 3 2023 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| 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% | — |
| Timeline | ||
| Release gap | Grok‑1 shipped 530 days before o4-mini | |
Which is better: o4-mini or Grok‑1?
o4-mini 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 530 days before o4-mini, so benchmark comparisons should account for the intervening progress.
o4-mini is proprietary, while Grok‑1 is open weight.
Direct benchmark comparisons are unavailable — o4-mini and Grok‑1 don't publish scores on any of the same benchmarks.
Frequently asked questions
- When was o4-mini released?
- o4-mini was released by OpenAI on Apr 16 2025.
- When was Grok‑1 released?
- Grok‑1 was released by xAI on Nov 3 2023.
- Is o4-mini or Grok‑1 open source?
- o4-mini is a proprietary model released by OpenAI. Grok‑1 is an open weight model released by xAI.