Mixtral 8×22B vs GPT-5-Codex
Mistral Mixtral 8×22B | OpenAI GPT-5-Codex | |
|---|---|---|
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Apr 10 2024 | Sep 15 2025 |
| Access | Open Weight | 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. | — | 39% |
| Timeline | ||
| Release gap | Mixtral 8×22B shipped 523 days before GPT-5-Codex | |
Which is better: Mixtral 8×22B or GPT-5-Codex?
Mixtral 8×22B and GPT-5-Codex don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mixtral 8×22B shipped 523 days before GPT-5-Codex, so benchmark comparisons should account for the intervening progress.
Mixtral 8×22B is open weight, while GPT-5-Codex is proprietary.
Direct benchmark comparisons are unavailable — Mixtral 8×22B and GPT-5-Codex don't publish scores on any of the same benchmarks.
Frequently asked questions
Mixtral 8×22B was released by Mistral on Apr 10 2024.
GPT-5-Codex was released by OpenAI on Sep 15 2025.
Mixtral 8×22B is an open weight model released by Mistral. GPT-5-Codex is a proprietary model released by OpenAI.
Other comparisons
Mixtral 8×22B vs Claude Sonnet 5GPT-5-Codex vs Claude Sonnet 5Mixtral 8×22B vs Gemini OmniGPT-5-Codex vs Gemini OmniMixtral 8×22B vs Muse Spark 1.1GPT-5-Codex vs Muse Spark 1.1Mixtral 8×22B vs Grok 4.5GPT-5-Codex vs Grok 4.5Mixtral 8×22B vs DeepSeek-V4-ProGPT-5-Codex vs DeepSeek-V4-ProMixtral 8×22B vs Kimi K2.7 CodeGPT-5-Codex vs Kimi K2.7 Code