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Gemini 3.1 Pro Preview (batch)

Fast and lightVisionTools

Google · Released February 2026

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.

It is part of Google's Gemini and Gemma catalog: Pro tiers lead on capability, Flash tiers on speed and price, Nano Banana covers image generation, and Gemma models are open weight.

Facts and pricing

Provider
Google
Context window
1.0M tokens
Input price
12.0 credits / 1M tokens ($1.00 raw)
Output price
72.0 credits / 1M tokens ($6.00 raw)
Vision (image input)
Yes
Tool calling
Yes
Extended reasoning
No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin. Raw prices shown per 1M tokens.

Try Gemini 3.1 Pro Preview now

Gemini 3.1 Pro Preview (batch) is a serving variant of Gemini 3.1 Pro Preview, so Zeplik offers the Gemini 3.1 Pro Preview row and routes your prompt there.

Ask Gemini 3.1 Pro Preview anything. Your prompt opens in the Zeplik app with this model selected.

Gemini 3.1 Pro Preview

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What Gemini 3.1 Pro Preview (batch) is best for

Example prompts

Prompts that suit a fast and light model like Gemini 3.1 Pro Preview (batch):

Google family

ModelContextInput cr/MOutput cr/MReleased
Gemini 4 Argon1.0M24.0120October 2026
Nano Banana 2.166K18.090.0October 2026
Gemini 3.8 Flash1.0M9.045.0September 2026
Gemini 3.8 Flash (batch)1.0M4.522.5September 2026
Gemini 3.7 Flash (batch)1.0M4.522.5August 2026
Gemini 3.7 Flash1.0M9.045.0August 2026
Gemini 3.6 Flash (batch)1.0M4.522.5July 2026
Gemini 3.6 Flash1.0M9.045.0July 2026
Gemini 3.5 Flash Lite (batch)1.0M1.815.0July 2026
Gemini 3.5 Flash Lite1.0M3.630.0July 2026

All 40 Google models

Model comparisons

Frequently asked questions

What is Gemini 3.1 Pro Preview (batch)?
Gemini 3.1 Pro Preview (batch) is an AI model by Google. 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.
How much does Gemini 3.1 Pro Preview (batch) cost on Zeplik?
Input tokens cost 12.0 credits per million and output tokens 72.0 credits per million (1 credit = $0.10; the raw provider rates are $1.00 and $6.00 per million). New accounts start with free credits.
How long can a conversation with Gemini 3.1 Pro Preview (batch) be?
Gemini 3.1 Pro Preview (batch) has a 1.0M-token context window (1,048,576 tokens), which covers the conversation plus any documents you attach.
Does Gemini 3.1 Pro Preview (batch) support images and tools?
Gemini 3.1 Pro Preview (batch) accepts image input and supports tool calling.

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