DeepSeek V3 Chat vs GPT-5.1-Codex-Max
DeepSeek DeepSeek V3 Chat | OpenAI GPT-5.1-Codex-Max | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Dec 2024 | Nov 19 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | DeepSeek V3 Chat shipped 353 days before GPT-5.1-Codex-Max | |
Which is better: DeepSeek V3 Chat or GPT-5.1-Codex-Max?
DeepSeek V3 Chat 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 V3 Chat shipped 353 days before GPT-5.1-Codex-Max, so benchmark comparisons should account for the intervening progress.
DeepSeek V3 Chat is open weight, while GPT-5.1-Codex-Max is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek V3 Chat and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek V3 Chat was released by DeepSeek on Dec 2024.
GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.
DeepSeek V3 Chat is an open weight model released by DeepSeek. GPT-5.1-Codex-Max is a proprietary model released by OpenAI.
Other comparisons
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