DeepSeek V3.1 vs GPT-4o mini
DeepSeek DeepSeek V3.1 | OpenAI GPT-4o mini | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Aug 21 2025 | Jul 18 2024 |
| Access | Open Weight | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 2% |
| Timeline | ||
| Release gap | GPT-4o mini shipped 399 days before DeepSeek V3.1 | |
Which is better: DeepSeek V3.1 or GPT-4o mini?
DeepSeek V3.1 and GPT-4o mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4o mini shipped 399 days before DeepSeek V3.1, so benchmark comparisons should account for the intervening progress.
DeepSeek V3.1 is open weight, while GPT-4o mini is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek V3.1 and GPT-4o 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-4o mini was released by OpenAI on Jul 18 2024.
DeepSeek V3.1 is an open weight model released by DeepSeek. GPT-4o mini is a proprietary model released by OpenAI.
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