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Codestral Mamba 7B vs gpt-oss-20b

Mistral Codestral Mamba 7B vs OpenAI gpt-oss-20b — side-by-side specs.

Mistral
Codestral Mamba 7B
OpenAI
gpt-oss-20b
Overview
CompanyMistralOpenAI
Release dateJul 16 2024Aug 5 2025
Model type
Open sourceYesYes
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapCodestral Mamba 7B shipped 385 days before gpt-oss-20b

Which is better: Codestral Mamba 7B or gpt-oss-20b?

Codestral Mamba 7B and gpt-oss-20b don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral Mamba 7B shipped 385 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 — Codestral Mamba 7B and gpt-oss-20b don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Codestral Mamba 7B released?
Codestral Mamba 7B was released by Mistral on Jul 16 2024.
When was gpt-oss-20b released?
gpt-oss-20b was released by OpenAI on Aug 5 2025.

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