Gemini 3.1 Pro

language modelGoogle

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

Key facts

Made byGoogle
Typelanguage model
ReleasedFebruary 19, 2026
Reads at once1,048,576 tokens
Price (API, per million tokens)$2 in · $12 out
Input → outputaudio, file, image, text, video → text

Questions about Gemini 3.1 Pro

Who makes Gemini 3.1 Pro?

Gemini 3.1 Pro is made by Google.

When was Gemini 3.1 Pro released?

We first saw Gemini 3.1 Pro listed on February 19, 2026.

How much does Gemini 3.1 Pro cost?

Through OpenRouter it costs $2 per million input tokens and $12 per million output tokens. Prices change, so check the provider before you build on it.

How much text can Gemini 3.1 Pro read at once?

Up to 1,048,576 tokens, roughly 786.4K words.

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Modelcast collects this page automatically from public sources (OpenRouter). Facts are copied from those sources, not written by the maker. Not affiliated with Google.