Mistral NeMo vs GPT-5.1-Codex-Max
Mistral Mistral NeMo | OpenAI GPT-5.1-Codex-Max | |
|---|---|---|
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Jul 18 2024 | Nov 19 2025 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Parameters | 12B | — |
Context window | 128k | — |
| Timeline | ||
| Release gap | Mistral NeMo shipped 489 days before GPT-5.1-Codex-Max | |
Which is better: Mistral NeMo or GPT-5.1-Codex-Max?
Mistral NeMo and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 489 days before GPT-5.1-Codex-Max, so benchmark comparisons should account for the intervening progress.
Mistral NeMo is open weight, while GPT-5.1-Codex-Max is proprietary.
Direct benchmark comparisons are unavailable — Mistral NeMo and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral NeMo was released by Mistral on Jul 18 2024.
GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.
Mistral NeMo is an open weight model released by Mistral. GPT-5.1-Codex-Max is a proprietary model released by OpenAI.
Other comparisons
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