DeepSeek-Math vs o3
DeepSeek DeepSeek-Math | OpenAI o3 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | OpenAI |
| Release date | Apr 3 2024 | Apr 16 2025 |
| 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. | — | 26% |
| Timeline | ||
| Release gap | DeepSeek-Math shipped 378 days before o3 | |
Which is better: DeepSeek-Math or o3?
DeepSeek-Math and o3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-Math shipped 378 days before o3, so benchmark comparisons should account for the intervening progress.
DeepSeek-Math is open weight, while o3 is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-Math and o3 don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek-Math was released by DeepSeek on Apr 3 2024.
o3 was released by OpenAI on Apr 16 2025.
DeepSeek-Math is an open weight model released by DeepSeek. o3 is a proprietary model released by OpenAI.