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Mixtral 8×7B vs gpt-oss-20b

Mistral Mixtral 8×7B vs OpenAI gpt-oss-20b — side-by-side specs.

Mistral
Mixtral 8×7B
OpenAI
gpt-oss-20b
Overview
CompanyMistralOpenAI
Release dateDec 9 2023Aug 5 2025
Model type
Open sourceYesYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMixtral 8×7B shipped 605 days before gpt-oss-20b

Which is better: Mixtral 8×7B or gpt-oss-20b?

Mixtral 8×7B and gpt-oss-20b do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Mixtral 8×7B shipped 605 days before gpt-oss-20b, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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 Mixtral 8×7B released?
Mixtral 8×7B was released by Mistral on Dec 9 2023.
When was gpt-oss-20b released?
gpt-oss-20b was released by OpenAI on Aug 5 2025.

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