Google

Gemini 3.1 Pro

The custom-tools preview of Gemini 3.1 Pro, tuned to call the tools you define instead of falling back to bash. Built for coding agents and multi-tool workflows, with 1M context and text, image, video and audio input. A preview build. Gemini 4 Argon is the newer Pro-class pick at a similar price.

Chat with Gemini 3.1 Pro

MainstreamThe big labs' models with their own safety filters. Best for work, code and research.

Brilliant

Intelligence

~6.5 credits

Estimated price per message

1M tokens

Context window

Text, Images, Video, Audio

Reads

Gemini 3.1 Pro is a legacy model. Its successor, Gemini 4 Argon, is faster or cheaper - and chats that used Gemini 3.1 Pro move to it automatically.

See Gemini 4 Argon

The facts

Made by

Google

Content tier

MainstreamThe big labs' models with their own safety filters. Best for work, code and research.

Intelligence

Brilliant

Estimated price per message

~6.5 credits≈ 15 messages for 1 €

Context window

1M tokens≈ 1,613 pages of text in one go

Reads

Text, Images, Video, Audio

Writes

Text

Tool use

Yes - search, memory, code and more

Served via

OpenRouter, Unbottled AI

Status

Legacy

A typical message: 16K tokens in, 1.5K out. Short replies cost less. Models served via OpenRouter bill the real provider cost plus our markup, so actual charges vary. 1 credit = 0.01 €.

Compare Gemini 3.1 Pro

Same facts, side by side.

Gemini 3.1 Pro vs Gemini 4 Argon Gemini 3.1 Pro vs Claude Sonnet 5.5 Gemini 3.1 Pro vs GPT-6.1 Sol

Try Gemini 3.1 Pro now.

No subscription. Free credits to start. The chat opens with Gemini 3.1 Pro selected and a prompt ready - just send.

Chat with Gemini 3.1 Pro