DeepSeek V3.1 Terminus vs GPT-5-Codex-Mini
DeepSeek DeepSeek V3.1 Terminus | OpenAI GPT-5-Codex-Mini | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Sep 22 2025 | Nov 7 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | DeepSeek V3.1 Terminus shipped 46 days before GPT-5-Codex-Mini | |
Which is better: DeepSeek V3.1 Terminus or GPT-5-Codex-Mini?
DeepSeek V3.1 Terminus and GPT-5-Codex-Mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3.1 Terminus shipped 46 days before GPT-5-Codex-Mini, so benchmark comparisons should account for the intervening progress.
DeepSeek V3.1 Terminus is open weight, while GPT-5-Codex-Mini is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek V3.1 Terminus and GPT-5-Codex-Mini don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek V3.1 Terminus was released by DeepSeek on Sep 22 2025.
GPT-5-Codex-Mini was released by OpenAI on Nov 7 2025.
DeepSeek V3.1 Terminus is an open weight model released by DeepSeek. GPT-5-Codex-Mini is a proprietary model released by OpenAI.
Other comparisons
DeepSeek V3.1 Terminus vs Claude Sonnet 5GPT-5-Codex-Mini vs Claude Sonnet 5DeepSeek V3.1 Terminus vs Gemini OmniGPT-5-Codex-Mini vs Gemini OmniDeepSeek V3.1 Terminus vs Muse Spark 1.1GPT-5-Codex-Mini vs Muse Spark 1.1DeepSeek V3.1 Terminus vs Grok 4.5GPT-5-Codex-Mini vs Grok 4.5DeepSeek V3.1 Terminus vs Mistral Medium 3.5GPT-5-Codex-Mini vs Mistral Medium 3.5DeepSeek V3.1 Terminus vs Kimi K2.7 CodeGPT-5-Codex-Mini vs Kimi K2.7 Code