Gemini 3.1 Pro Preview by GitHub Copilot — Specs, Pricing & Capabilities | whichllm

Model ID gemini-3.1-pro-preview

Provider GitHub Copilot

Family gemini-pro

Status -

Knowledge Cutoff 2025-01

Release Date 2026-02-19

Input Modalities text, image

Output Modalities text

Context Window 128000

Input Limit 128000

Output Limit 64000

Tool Calling Yes

Reasoning Yes

Structured Output Yes

Temperature Control Yes

Open Weights No

Input Cost / 1M tokens -

Output Cost / 1M tokens -

Reasoning Cost / 1M tokens -

Cache Read Cost / 1M tokens -

Cache Write Cost / 1M tokens -