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DeepSeek V2.5 (Revised) vs o1-preview

DeepSeek DeepSeek V2.5 (Revised) vs OpenAI o1-preview — side-by-side specs.

DeepSeek
DeepSeek V2.5 (Revised)
OpenAI
o1-preview
Overview
CompanyDeepSeekOpenAI
Release dateDec 2024Sep 12 2024
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapo1-preview shipped 80 days before DeepSeek V2.5 (Revised)

Which is better: DeepSeek V2.5 (Revised) or o1-preview?

DeepSeek V2.5 (Revised) and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-preview shipped 80 days before DeepSeek V2.5 (Revised), so benchmark comparisons should account for the intervening progress.

DeepSeek V2.5 (Revised) is an open-source / open-weight model; o1-preview is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V2.5 (Revised) and o1-preview don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek V2.5 (Revised) released?
DeepSeek V2.5 (Revised) was released by DeepSeek on Dec 2024.
When was o1-preview released?
o1-preview was released by OpenAI on Sep 12 2024.
Is DeepSeek V2.5 (Revised) or o1-preview open source?
DeepSeek V2.5 (Revised) is an open-source / open-weight model released by DeepSeek. o1-preview is a proprietary model released by OpenAI.

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