Claude 2.1 vs DeepSeek R1-0528
Anthropic Claude 2.1 | DeepSeek DeepSeek R1-0528 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | DeepSeek |
| Release date | Nov 21 2023 | May 28 2025 |
| Access | Proprietary | Open Weight |
| 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. | — | 8% |
| Timeline | ||
| Release gap | Claude 2.1 shipped 554 days before DeepSeek R1-0528 | |
Which is better: Claude 2.1 or DeepSeek R1-0528?
Claude 2.1 and DeepSeek R1-0528 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2.1 shipped 554 days before DeepSeek R1-0528, so benchmark comparisons should account for the intervening progress.
Claude 2.1 is proprietary, while DeepSeek R1-0528 is open weight.
Direct benchmark comparisons are unavailable — Claude 2.1 and DeepSeek R1-0528 don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 2.1 was released by Anthropic on Nov 21 2023.
DeepSeek R1-0528 was released by DeepSeek on May 28 2025.
Claude 2.1 is a proprietary model released by Anthropic. DeepSeek R1-0528 is an open weight model released by DeepSeek.
Other comparisons
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