DeepSeek V3.1 vs GPT-5-Codex-Mini
DeepSeek DeepSeek V3.1 | OpenAI GPT-5-Codex-Mini | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Aug 21 2025 | Nov 7 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | DeepSeek V3.1 shipped 78 days before GPT-5-Codex-Mini | |
Which is better: DeepSeek V3.1 or GPT-5-Codex-Mini?
DeepSeek V3.1 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 shipped 78 days before GPT-5-Codex-Mini, so benchmark comparisons should account for the intervening progress.
DeepSeek V3.1 is open weight, while GPT-5-Codex-Mini is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek V3.1 and GPT-5-Codex-Mini don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek V3.1 was released by DeepSeek on Aug 21 2025.
GPT-5-Codex-Mini was released by OpenAI on Nov 7 2025.
DeepSeek V3.1 is an open weight model released by DeepSeek. GPT-5-Codex-Mini is a proprietary model released by OpenAI.
Other comparisons
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