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DeepSeek Coder vs o4-mini

DeepSeek DeepSeek Coder vs OpenAI o4-mini — side-by-side specs.

DeepSeek
DeepSeek Coder
OpenAI
o4-mini
Overview
CompanyDeepSeekOpenAI
Release dateNov 2 2023Apr 16 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek Coder shipped 531 days before o4-mini

Which is better: DeepSeek Coder or o4-mini?

DeepSeek Coder and o4-mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Coder shipped 531 days before o4-mini, so benchmark comparisons should account for the intervening progress.

DeepSeek Coder is an open-source / open-weight model; o4-mini is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was DeepSeek Coder released?
DeepSeek Coder was released by DeepSeek on Nov 2 2023.
When was o4-mini released?
o4-mini was released by OpenAI on Apr 16 2025.
Is DeepSeek Coder or o4-mini open source?
DeepSeek Coder is an open-source / open-weight model released by DeepSeek. o4-mini is a proprietary model released by OpenAI.

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