Gemini 3.6 FlashvsGPT-5.5-Pro
Gemini 3.6 Flash | GPT-5.5-Pro | |
|---|---|---|
| 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. | — | 36% |
Agentic coding DeepSWE 1.1Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | 49% | — |
ML engineering MLE-BenchCan the AI do the work of a machine-learning engineer? It competes in real Kaggle competitions — building, training, and tuning models end to end — and the score reflects how well it places. Higher is better. | 63.9% | — |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 83% |
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. | 68% | — |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | — | 90.1% |
Multidisciplinary reasoning Humanity's Last Exam · with toolsHumanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | — | 57.2% |
Advanced math FrontierMath · Tier 1–3Very hard, research-level math problems. Tiers 1–3 are the (still extremely difficult) lower tiers. Higher is better. | — | 52.4% |
Advanced math FrontierMath · Tier 4Very hard, research-level math problems. Tier 4 is the hardest — close to what professional research mathematicians tackle. Higher is better. | — | 39.6% |
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. | 83% | — |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | 1421 | — |
Knowledge work GDPval (win/tie rate)How often the AI's work matches or beats a human expert's on real knowledge-work tasks. Higher is better. | — | 82.3% |
| Timeline | ||
| Release gap | GPT-5.5-Pro shipped 89 days before Gemini 3.6 Flash | |
| Overview | ||
| Company | OpenAI | |
| Release date | Jul 21 2026 | Apr 23 2026 |
| Access | Proprietary | Proprietary |
Which is better: Gemini 3.6 Flash or GPT-5.5-Pro?
Gemini 3.6 Flash and GPT-5.5-Pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5.5-Pro shipped 89 days before Gemini 3.6 Flash, 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 — Gemini 3.6 Flash and GPT-5.5-Pro don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 3.6 Flash was released by Google on Jul 21 2026.
GPT-5.5-Pro was released by OpenAI on Apr 23 2026.
Other comparisons
Gemini 3.6 FlashvsClaude Sonnet 5GPT-5.5-ProvsClaude Sonnet 5Gemini 3.6 FlashvsMuse Spark 1.1GPT-5.5-ProvsMuse Spark 1.1Gemini 3.6 FlashvsGrok 4.5GPT-5.5-ProvsGrok 4.5Gemini 3.6 FlashvsDeepSeek-V4-ProGPT-5.5-ProvsDeepSeek-V4-ProGemini 3.6 FlashvsMistral Medium 3.5GPT-5.5-ProvsMistral Medium 3.5Gemini 3.6 FlashvsKimi K3GPT-5.5-ProvsKimi K3