Gemini 3.1 Pro

by Google

Google's flagship chat model. Quick and capable across long prompts — a strong everyday pick when responsiveness matters. Try Gemini 3.1 Pro on Zo.

Knowledge cutoffJan 2025
Context window1M tokens
Release dateNov 2025
Prompts ≤ 200k tokens
Input
$2.00 / 1M tokens
Output
$12.00 / 1M tokens
Prompts > 200k tokens
Input
$4.00 / 1M tokens
Output
$18.00 / 1M tokens

How we rate models

Quality. Three brains is top, one is basic. We anchor the rating on SWE-bench Verifiedthe industry-standard coding benchmark — how often a model solves real GitHub issues end-to-end.
Fast. Shown when the model can produce at least roughly 80 tokens per second (about 60 words a second). Not every model qualifies.
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Cost. Single dollar is the cheapest tier (green), four dollars is the priciest (amber) — reserved for premium models that cost well above the rest. Tiers sit on a fixed scale of what a typical request costs, so they're comparable across providers and don't shift as the lineup changes.

On Zo, you can choose between all the leading AI models for chatting, research, coding, and generating media. We believe in giving you the power to explore different models so that you can get the best results for any task.

Gemini 3.1 Pro | Zo Computer