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

Gemma 4 vs GPT-5.6 Sol

Google
Gemma 4
OpenAI
GPT-5.6 Sol
Overview
CompanyGoogleOpenAI
Release dateApr 2 2026Jun 26 2026
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
47%
Next.js coding
Next.js Evals
88%
Agentic terminal coding
Terminal-Bench 2.1
88.8%
Community preference
Arena Elo (Text)
1486
Community preference (code)
Arena Elo (Code)
1636
Timeline
Release gapGemma 4 shipped 85 days before GPT-5.6 Sol

Which is better: Gemma 4 or GPT-5.6 Sol?

Gemma 4 and GPT-5.6 Sol don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 4 shipped 85 days before GPT-5.6 Sol, so benchmark comparisons should account for the intervening progress.

Gemma 4 is open weight, while GPT-5.6 Sol is proprietary.

Direct benchmark comparisons are unavailable — Gemma 4 and GPT-5.6 Sol don't publish scores on any of the same benchmarks.

Frequently asked questions

Gemma 4 was released by Google on Apr 2 2026.

GPT-5.6 Sol was released by OpenAI on Jun 26 2026.

Gemma 4 is an open weight model released by Google. GPT-5.6 Sol is a proprietary model released by OpenAI.

Other comparisons