Gemini 3.1 Pro vs Opus 4.8

Gemini 3.1 Pro vs Opus 4.8 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
Opus 4.8
Anthropic

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
1M tokens
Jan 2025
Knowledge
Jan 2026
Nov 2025
Released
May 2026
$2.00/1M
Input
$5.00/1M
$12.00/1M
Output
$25.00/1M

Both Gemini 3.1 Pro and Opus 4.8 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 Opus 4.8View all models on Zo
Gemini 3.1 Pro vs Opus 4.8 | Zo Computer