DeepSeek-LLM and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-LLM shipped 288 days before o1-preview, so benchmark comparisons should account for the intervening progress.

DeepSeek-LLM is open weight, while o1-preview is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek-LLM and o1-preview don't publish scores on any of the same benchmarks.