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

Gemma 1 vs GPT-5.1-Codex-Max

Google
Gemma 1
OpenAI
GPT-5.1-Codex-Max
Overview
CompanyGoogleOpenAI
Release dateFeb 21 2024Nov 19 2025
AccessOpen WeightProprietary
Timeline
Release gapGemma 1 shipped 637 days before GPT-5.1-Codex-Max

Which is better: Gemma 1 or GPT-5.1-Codex-Max?

Gemma 1 and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 1 shipped 637 days before GPT-5.1-Codex-Max, so benchmark comparisons should account for the intervening progress.

Gemma 1 is open weight, while GPT-5.1-Codex-Max is proprietary.

Direct benchmark comparisons are unavailable — Gemma 1 and GPT-5.1-Codex-Max don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemma 1 was released by Google on Feb 21 2024.

GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.

Gemma 1 is an open weight model released by Google. GPT-5.1-Codex-Max is a proprietary model released by OpenAI.

Other comparisons