Gemini 3.1 Flash Image Preview

gemini-3.1-flash-image-preview · Google

This model is scheduled for retirement. Plan to migrate to gemini-3.1-flash-image.
Calls still work until then. All model retirements

gemini-3.1-flash-image-preview (Nano Banana 2) features professional-grade visual intelligence, lightning-fast efficiency, and realistic, grounded generative capabilities. This model serves as the high-efficiency counterpart to Gemini 3 Pro Image, optimized for speed and high-volume developer use cases.

API Pricing

Input$0.5 / 1M tokens
Output$3 / 1M tokens

Specifications

Modalitiestext, image
Featuresthinking

Frequently asked questions

What is Gemini 3.1 Flash Image Preview?

gemini-3.1-flash-image-preview (Nano Banana 2) features professional-grade visual intelligence, lightning-fast efficiency, and realistic, grounded generative capabilities. This model serves as the high-efficiency counterpart to Gemini 3 Pro Image, optimized for speed and high-volume developer use cases.

How much does Gemini 3.1 Flash Image Preview cost?

On AIHubMix, Gemini 3.1 Flash Image Preview costs $0.5 per million input tokens and $3 per million output tokens.

What modalities does Gemini 3.1 Flash Image Preview support?

Gemini 3.1 Flash Image Preview accepts text and image input.

What capabilities does Gemini 3.1 Flash Image Preview support?

Gemini 3.1 Flash Image Preview supports thinking. Per-protocol parameter support is listed in the capability table on this page.

How do I call Gemini 3.1 Flash Image Preview via API?

Gemini 3.1 Flash Image Preview is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gemini-3.1-flash-image-preview — no other code changes needed.

Who created Gemini 3.1 Flash Image Preview?

Gemini 3.1 Flash Image Preview is developed by Google. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

When was Gemini 3.1 Flash Image Preview released?

Gemini 3.1 Flash Image Preview was released on February 26, 2026 by Google.

Free version: Gemini 3.1 Flash Image Preview (free)

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Use Gemini 3.1 Flash Image Preview via the AIHubMix unified API — one interface for every major LLM.