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DeepSeek V2.5 vs o1

DeepSeek DeepSeek V2.5 vs OpenAI o1 — side-by-side specs.

DeepSeek
DeepSeek V2.5
OpenAI
o1
Overview
CompanyDeepSeekOpenAI
Release dateSep 2024Dec 5 2024
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapDeepSeek V2.5 shipped 95 days before o1

Which is better: DeepSeek V2.5 or o1?

DeepSeek V2.5 and o1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V2.5 shipped 95 days before o1, so benchmark comparisons should account for the intervening progress.

DeepSeek V2.5 is an open-source / open-weight model; o1 is proprietary.

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

Frequently asked questions

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

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