Compare AI models
These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given 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. | 39% | — |
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Sep 15 2025 | Nov 3 2023 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
GPT-5-CodexvsClaude Sonnet 5.5Grok‑1vsClaude Sonnet 5.5GPT-5-CodexvsGemini 4 ArgonGrok‑1vsGemini 4 ArgonGPT-5-CodexvsMuse Spark 1.3Grok‑1vsMuse Spark 1.3GPT-5-CodexvsDeepSeek-V4.1-FlashGrok‑1vsDeepSeek-V4.1-FlashGPT-5-CodexvsMistral Large 4Grok‑1vsMistral Large 4GPT-5-CodexvsKimi K3Grok‑1vsKimi K3Frequently asked questions
GPT-5-Codex 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 682 days before GPT-5-Codex, so benchmark comparisons should account for the intervening progress.
GPT-5-Codex is closed, while Grok‑1 is open weight.
Direct benchmark comparisons are unavailable — GPT-5-Codex and Grok‑1 don't publish scores on any of the same benchmarks.