Gemini 3.1 Pro vs GPT-5.5

Gemini 3.1 Pro vs GPT-5.5 compared on intelligence, speed, and cost. Try both models on Zo, the always-on AI computer that does real work for you.

Gemini 3.1 Pro
Google
vs
GPT-5.5
OpenAI

Intelligence

Tie
vs

Speed

Gemini 3.1 Pro is faster
vs
Standard

Cost

Tie
vs

How to read this

Intelligence comes from SWE-bench Verified, the coding benchmark used by the model picker. Speed means the model is fast enough for the picker threshold. Cost shows the relative tier across Zo models: green is cheaper, amber is pricier.

Model details

1M tokens
Context
1.1M tokens
Jan 2025
Knowledge
Dec 2025
Nov 2025
Released
Apr 2026
$2.00/1M
Input
$5.00/1M
$12.00/1M
Output
$30.00/1M

Both Gemini 3.1 Pro and GPT-5.5 are available on Zo Computer. Try them both to see which one works best for your use case.

Learn more about Gemini 3.1 ProLearn more about GPT-5.5View all models on Zo
Gemini 3.1 Pro vs GPT-5.5 | Zo Computer