Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) now on AI Gateway

Nano Banana 2 Lite from Google is now available on AI Gateway. This Flash-Lite-tier image model is built for fast, low-cost generation. It generates images alongside text in <4s and can edit existing images across multiple turns.

The cost is also lower than previous Nano Banana models. Nano Banana 2 Lite generates 1K images at $0.034 each, about half the cost of Nano Banana 2 and roughly a quarter of the cost of Nano Banana Pro at the same resolution.

This model is multimodal. Use streamText or generateText to generate images alongside text responses.

To use Nano Banana 2 Lite, set model to google/gemini-3.1-flash-lite-image in the AI SDK:

import { generateText } from 'ai';

const result = await generateText({
  model: 'google/gemini-3.1-flash-lite-image',
  providerOptions: {
    google: { responseModalities: ['TEXT', 'IMAGE'] },
  },
  prompt: 'Vercel logo on a black billboard in the middle of Times Square.',
});

Here is the example output from the above prompt:

You can also try Nano Banana 2 Lite in the model playground.

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, Zero Data Retention support, budgets for API keys, and more.

AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.