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DeepSeek Coder vs o3-mini-high

DeepSeek DeepSeek Coder vs OpenAI o3-mini-high — side-by-side specs.

DeepSeek
DeepSeek Coder
OpenAI
o3-mini-high
Overview
CompanyDeepSeekOpenAI
Release dateNov 2 2023Jan 31 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 456 days before o3-mini-high

Which is better: DeepSeek Coder or o3-mini-high?

DeepSeek Coder and o3-mini-high do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Coder shipped 456 days before o3-mini-high, so benchmark comparisons should account for the intervening progress.

DeepSeek Coder is an open-source / open-weight model; o3-mini-high 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 o3-mini-high released?
o3-mini-high was released by OpenAI on Jan 31 2025.
Is DeepSeek Coder or o3-mini-high open source?
DeepSeek Coder is an open-source / open-weight model released by DeepSeek. o3-mini-high is a proprietary model released by OpenAI.

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