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Model detail

Gemini 3.1 Flash Lite image

Provided by Google
Pay-as-you-go

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation in roughly 4 seconds — about 2.7× faster than Gemini 3.1 Flash Image — while keeping the character consistency, precise editing, and real-world knowledge of the Nano Banana family. A single drop-in API handles text-to-image, image editing, and multi-image composition. As a multimodal model it also returns text alongside images. Outputs are generated at 1K resolution across 14 aspect ratios and carry an invisible SynthID watermark so they can be identified as AI-generated. Positioned as the best balance of quality and speed in the Nano Banana 2 line, it lets you generate thousands of images at a fraction of the cost of heavier production models — ideal for prototyping, real-time apps, and visual workflows at scale.

Model specs

Model ID
gemini-3.1-flash-lite-image
Context length
65.536K
Max output
4.096K
I/O modalities
Released
2026-06

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API endpoints

One MixRoute gateway, OpenAI-compatible

  • Gemini /v1beta/models/{model}:generateContent POST
  • OpenAI-compatible /v1/chat/completions POST

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Pricing

Flat rate, unit: /1M Tokens

Input

$0.2500 /1M Tokens

Completion

$1.5000 /1M Tokens

Image completion

$5.0000 /1M Tokens

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Selection summary

Quickly judge whether it fits your workload

What is this model good for?

Image generation for high-volume

Gemini 3.1 Flash Lite image — Nano Banana 2 Lite — ultra-low latency image generation and editing, sub-2 second latency, high-volume interactive use cases.

What should you check before using it?

65,536 context, 4,096 output

Image Generation. Knowledge cutoff: 2025-01-01. Released 2026-06.

Why use it through MixRoute?

Available through MixRoute's OpenAI-compatible endpoint

Use the Google Gen AI SDK or call through MixRoute. Set the model parameter to "gemini-3.1-flash-lite-image".

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Capabilities & compatibility

Unconfirmed capabilities stay "Unknown," no guesses

Available:

Streaming

Gemini 3.1 Flash Lite image supports streamed responses.

EX stream: true streams tokens incrementally, so chat UIs render as they arrive.
Available:

Vision input

Gemini 3.1 Flash Lite image can process image inputs alongside text.

EX Pass a base64-encoded image in a image_url content part alongside text messages.
Available:

OpenAI SDK

Call Gemini 3.1 Flash Lite image through MixRoute's OpenAI-compatible endpoint.

EX Change base_url to https://api.mixroute.ai/v1; everything else follows the OpenAI style.

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Token cost estimator

Live estimate from this page's pricing, not an actual bill

This model has no cache-read price; caching is not counted

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FAQ

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google’s fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration.

One endpoint, a testable decision

Test this model and alternate routes with the same request format

Start from a real workload, then let quality, total cost, and failure conditions decide whether to send production traffic.

Create an API key View integration docs