DeepSeek-LLM vs GPT-5.1-Codex-Max
DeepSeek DeepSeek-LLM | OpenAI GPT-5.1-Codex-Max | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Nov 29 2023 | Nov 19 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | DeepSeek-LLM shipped 721 days before GPT-5.1-Codex-Max | |
Which is better: DeepSeek-LLM or GPT-5.1-Codex-Max?
DeepSeek-LLM 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. DeepSeek-LLM shipped 721 days before GPT-5.1-Codex-Max, so benchmark comparisons should account for the intervening progress.
DeepSeek-LLM is open weight, while GPT-5.1-Codex-Max is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-LLM and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek-LLM was released by DeepSeek on Nov 29 2023.
GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.
DeepSeek-LLM is an open weight model released by DeepSeek. GPT-5.1-Codex-Max is a proprietary model released by OpenAI.
Other comparisons
DeepSeek-LLM vs Claude Sonnet 5GPT-5.1-Codex-Max vs Claude Sonnet 5DeepSeek-LLM vs Gemini OmniGPT-5.1-Codex-Max vs Gemini OmniDeepSeek-LLM vs Muse Spark 1.1GPT-5.1-Codex-Max vs Muse Spark 1.1DeepSeek-LLM vs Grok 4.5GPT-5.1-Codex-Max vs Grok 4.5DeepSeek-LLM vs Mistral Medium 3.5GPT-5.1-Codex-Max vs Mistral Medium 3.5DeepSeek-LLM vs Kimi K2.7 CodeGPT-5.1-Codex-Max vs Kimi K2.7 Code