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)

More models from Google

See all Google models →

Gemini Nano Banana 2.1

by Google

Gemini Nano Banana 2.1 (gemini-nano-banana-2.1) is Google's latest high-efficiency image…

$1.5/1M in · $7.5/1M out
65,536 tokens context

Gemini 3.8 Flash Lite Tts

by Google

Gemini 3.8 Flash-Lite TTS (gemini-3.8-flash-lite-tts) is Google's fast and affordable…

$1/1M in · $1/1M out
8,192 tokens context

Gemini 3.8 Flash Tts

by Google

Gemini 3.8 Flash TTS (gemini-3.8-flash-tts) is Google's 3.8 Flash text-to-speech audio…

$0.5/1M in · $9/1M out
8,192 tokens context

Gemini 3.8 Flash

by Google

Gemini 3.8 Flash is Google's most intelligent Flash-series model, designed for…

$0.75/1M in · $3.75/1M out
1,048,576 tokens context

Gemini 3.7 Flash

by Google

Gemini 3.7 Flash is Google’s natively multimodal reasoning model for coding, agents, web…

$0.75/1M in · $3.75/1M out
1,048,576 tokens context

Gemini 3.6 Flash

by Google

Gemini 3.6 Flash provides sustained frontier-level intelligence optimized for real-world…

$1.5/1M in · $7.5/1M out
1,048,576 tokens context

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