Gemma 4 vs GPT-5.6 Terra
Google Gemma 4 | OpenAI GPT-5.6 Terra | |
|---|---|---|
| Overview | ||
| Company | OpenAI | |
| Release date | Apr 2 2026 | Jun 26 2026 |
| Access | Open Weight | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 53% |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 84.3% |
| Timeline | ||
| Release gap | Gemma 4 shipped 85 days before GPT-5.6 Terra | |
Which is better: Gemma 4 or GPT-5.6 Terra?
Gemma 4 and GPT-5.6 Terra 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 Terra, so benchmark comparisons should account for the intervening progress.
Gemma 4 is open weight, while GPT-5.6 Terra is proprietary.
Direct benchmark comparisons are unavailable — Gemma 4 and GPT-5.6 Terra 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 Terra was released by OpenAI on Jun 26 2026.
Gemma 4 is an open weight model released by Google. GPT-5.6 Terra is a proprietary model released by OpenAI.
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