Gemini 3.5 Flash-LitevsGPT-5.6 Terra
Gemini 3.5 Flash-Lite | GPT-5.6 Terra | |
|---|---|---|
| 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 coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | 54.2% | — |
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. | 54% | 84.3%Best |
Browser agent BU BenchCan the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better. | 49% | — |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 74% | — |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | 1140 | — |
| Timeline | ||
| Release gap | GPT-5.6 Terra shipped 25 days before Gemini 3.5 Flash-Lite | |
| Overview | ||
| Company | OpenAI | |
| Release date | Jul 21 2026 | Jun 26 2026 |
| Access | Proprietary | Proprietary |
Which is better: Gemini 3.5 Flash-Lite or GPT-5.6 Terra?
GPT-5.6 Terra leads Gemini 3.5 Flash-Lite on 1 of the 1 benchmark they both report (Terminal-Bench 2.1). GPT-5.6 Terra shipped 25 days before Gemini 3.5 Flash-Lite, 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.
On Terminal-Bench 2.1, GPT-5.6 Terra leads at 84.3% vs Gemini 3.5 Flash-Lite at 54%.
Frequently asked questions
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
GPT-5.6 Terra was released by OpenAI on Jun 26 2026.
GPT-5.6 Terra leads on Terminal-Bench 2.1 — Gemini 3.5 Flash-Lite 54% vs GPT-5.6 Terra 84.3%.
Other comparisons
Gemini 3.5 Flash-LitevsClaude Sonnet 5GPT-5.6 TerravsClaude Sonnet 5Gemini 3.5 Flash-LitevsMuse Spark 1.1GPT-5.6 TerravsMuse Spark 1.1Gemini 3.5 Flash-LitevsGrok 4.5GPT-5.6 TerravsGrok 4.5Gemini 3.5 Flash-LitevsDeepSeek-V4-ProGPT-5.6 TerravsDeepSeek-V4-ProGemini 3.5 Flash-LitevsMistral Medium 3.5GPT-5.6 TerravsMistral Medium 3.5Gemini 3.5 Flash-LitevsKimi K3GPT-5.6 TerravsKimi K3