DeepSeek-V3.2 vs GPT-5.1-Codex-Max
DeepSeek DeepSeek-V3.2 | OpenAI GPT-5.1-Codex-Max | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Dec 1 2025 | Nov 19 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. | 13% | — |
| Timeline | ||
| Release gap | GPT-5.1-Codex-Max shipped 12 days before DeepSeek-V3.2 | |
Which is better: DeepSeek-V3.2 or GPT-5.1-Codex-Max?
DeepSeek-V3.2 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. GPT-5.1-Codex-Max shipped 12 days before DeepSeek-V3.2, so benchmark comparisons should account for the intervening progress.
DeepSeek-V3.2 is open weight, while GPT-5.1-Codex-Max is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-V3.2 and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek-V3.2 was released by DeepSeek on Dec 1 2025.
GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.
DeepSeek-V3.2 is an open weight model released by DeepSeek. GPT-5.1-Codex-Max is a proprietary model released by OpenAI.
Other comparisons
DeepSeek-V3.2 vs Claude Sonnet 5GPT-5.1-Codex-Max vs Claude Sonnet 5DeepSeek-V3.2 vs Gemini OmniGPT-5.1-Codex-Max vs Gemini OmniDeepSeek-V3.2 vs Muse Spark 1.1GPT-5.1-Codex-Max vs Muse Spark 1.1DeepSeek-V3.2 vs Grok 4.5GPT-5.1-Codex-Max vs Grok 4.5DeepSeek-V3.2 vs Mistral Medium 3.5GPT-5.1-Codex-Max vs Mistral Medium 3.5DeepSeek-V3.2 vs Kimi K2.7 CodeGPT-5.1-Codex-Max vs Kimi K2.7 Code