AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Gemma 2 vs gpt-oss-20b

Google
Gemma 2
OpenAI
gpt-oss-20b
Overview
CompanyGoogleOpenAI
Release dateJun 27 2024Aug 5 2025
AccessOpen WeightOpen Weight
Timeline
Release gapGemma 2 shipped 404 days before gpt-oss-20b

Which is better: Gemma 2 or gpt-oss-20b?

Gemma 2 and gpt-oss-20b don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 2 shipped 404 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 — Gemma 2 and gpt-oss-20b don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemma 2 was released by Google on Jun 27 2024.

gpt-oss-20b was released by OpenAI on Aug 5 2025.

Other comparisons