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DeepSeek-Math vs o4-mini

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

DeepSeek
DeepSeek-Math
OpenAI
o4-mini
Overview
CompanyDeepSeekOpenAI
Release dateApr 3 2024Apr 16 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapDeepSeek-Math shipped 378 days before o4-mini

Which is better: DeepSeek-Math or o4-mini?

DeepSeek-Math and o4-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-Math shipped 378 days before o4-mini, so benchmark comparisons should account for the intervening progress.

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

Direct benchmark comparisons are unavailable — DeepSeek-Math and o4-mini don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek-Math released?
DeepSeek-Math was released by DeepSeek on Apr 3 2024.
When was o4-mini released?
o4-mini was released by OpenAI on Apr 16 2025.
Is DeepSeek-Math or o4-mini open source?
DeepSeek-Math is an open-source / open-weight model released by DeepSeek. o4-mini is a proprietary model released by OpenAI.

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