DeepSeek V2.5 vs GPT-5-Codex-Mini
DeepSeek DeepSeek V2.5 | OpenAI GPT-5-Codex-Mini | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Sep 2024 | Nov 8 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | DeepSeek V2.5 shipped 433 days before GPT-5-Codex-Mini | |
Which is better: DeepSeek V2.5 or GPT-5-Codex-Mini?
DeepSeek V2.5 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 V2.5 shipped 433 days before GPT-5-Codex-Mini, so benchmark comparisons should account for the intervening progress.
DeepSeek V2.5 is open weight, while GPT-5-Codex-Mini is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek V2.5 and GPT-5-Codex-Mini don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek V2.5 was released by DeepSeek on Sep 2024.
GPT-5-Codex-Mini was released by OpenAI on Nov 8 2025.
DeepSeek V2.5 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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