How is Nano Banana 2 Lite different from Nano Banana 2?

Nano Banana 2 (Gemini 3.1 Flash Image) offers up to 4K output, search grounding and a richer reference system; Nano Banana 2 Lite trades those for speed and cost — 1K-only output at several times the generation speed and half the official list rate. Draft and iterate on Nano Banana 2 Lite, switch to Nano Banana 2 for high-resolution finals.

Can Nano Banana 2 Lite edit existing images?

Yes. Pass up to 10 public image URLs in image_urls together with an instruction prompt. Nano Banana 2 Lite replaces backgrounds, removes objects, restyles scenes and adjusts lighting while keeping the rest of the image consistent. Omit image_urls for pure text-to-image.

How fast is Nano Banana 2 Lite?

Google's launch post positions Nano Banana 2 Lite text-to-image at around four seconds per 1K image, and published comparisons place it several times faster than Nano Banana 2. On reApi the endpoint is async — submit, then poll — so end-to-end time is typically a handful of seconds.

What resolution does Nano Banana 2 Lite output?

1K (1024px-class) only, in your choice of 14 aspect ratios or auto. If you need 2K or 4K output from the same family, use Nano Banana 2 or Nano Banana Pro — both also available on reApi.

How much does Nano Banana 2 Lite cost on reApi?

Billing is a flat rate per generated image — the same price for text-to-image and editing, independent of aspect ratio, with exactly one image per request. Failed requests are refunded automatically. Current per-image pricing is shown in the table above and in the playground estimator before you submit.

Which aspect ratios does Nano Banana 2 Lite support?

1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, plus the extreme banner and tower ratios 4:1, 1:4, 8:1 and 1:8 — and auto, the default, where the model chooses (edits follow the source image).

Are Nano Banana 2 Lite images watermarked?

Google embeds a SynthID invisible watermark and C2PA provenance metadata in every image the model family produces. This does not affect visual quality and is standard across Nano Banana models.

Is Nano Banana 2 Lite free or paid?

Paid. Completed generations are charged at the rates in this page's pricing table. Eligible new accounts may receive promotional test credits; availability and amount are shown at signup or in the dashboard. Technical or provider failures are refunded automatically, except where this page documents a charged output-moderation block.

Does Nano Banana 2 Lite require a monthly subscription?

No. Pricing is pay-as-you-go: $1 buys 1,000 credits and credits never expire. Cost scales with what you generate rather than with a recurring fee.

How do I get a Nano Banana 2 Lite API key?

Sign up and create a key in the dashboard, no card required. Pass it as a Bearer token in the Authorization header.

Nano Banana 2 Lite — Fast 1K Image Generation & Editing

Nano Banana 2 Lite is Google DeepMind's Gemini 3.1 Flash-Lite Image: the speed tier of the Nano Banana family, generating 1K images in about four seconds and editing existing ones from a plain-language prompt. You call Nano Banana 2 Lite through reApi's unified API at a low flat rate per image.

Highlights: Lightweight Gemini-family editing · extreme ratios to 1:8
Best for: Cheap edits, social crops, drafts
Input: Text, plus reference images
Output: One image per request

Input

Prompt*

Describe subject, scene, style and composition; for edits, say what changes and what stays.

Input images

Drag images here or click to upload

0/16 files

JPEG, PNG or WebP via public http(s) URLs.

Aspect ratio

Default: auto.

Estimated cost~$0.01515 credits

Result

Try one of these prompts

What is the Nano Banana 2 Lite API?

Nano Banana 2 Lite is the speed-focused member of Google's Nano Banana image family, exposed on reAPI as one async endpoint for both text-to-image and prompt-based editing with up to 10 reference images. Prompts run up to 20,000 characters across 15 aspect ratio options including auto, and every request returns exactly one 1K image — there is no image count and no resolution control — billed per image.

Kyoto travel postcard with hand-lettered KYOTO text, generated by Nano Banana 2 Lite

What you can build with this model

Real-world workflows and production use cases you can build and ship with this model.

Product hero draft of a sage-green smart speaker generated by Nano Banana 2 Lite

In-app creative drafting

Nano Banana 2 Lite is built for product surfaces where users wait on the result: design canvases, story tools, agent-built slides and landing pages. At about four seconds per 1K image, Nano Banana 2 Lite keeps the loop interactive — a user tweaks the prompt, the draft updates, no spinner fatigue. The hero draft on the left is raw Nano Banana 2 Lite output from a single prompt.

Draft one in the playground

Cozy reading nook edited by Nano Banana 2 Lite from morning daylight into a rainy evening

Prompt-based image editing

Pass up to 10 input images and tell Nano Banana 2 Lite what to change: replace a background, remove an object, restyle a room, adjust the light. This reading nook was generated by Nano Banana 2 Lite, then re-submitted with one instruction — "make it a rainy evening, keep the furniture unchanged" — and the model preserved the chair, plant and framing while rewriting the mood.

E-commerce lifestyle scene of a serum bottle on marble, generated by Nano Banana 2 Lite

High-volume commerce and social assets

When image generation is a per-request product action — e-commerce lifestyle scenes, thumbnails, social cards, personalized postcards — the per-image rate decides whether the feature is viable. Nano Banana 2 Lite bills one low flat rate per image, so batching hundreds of product-scene drafts through Nano Banana 2 Lite stays affordable, with in-image label text that comes back legible.

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

First test cost

$0.01515 credits

One sample at the cheapest tier (1 image).

Testing budget guide

Add credits

$10

≈ 666 tests

$50

≈ 3333 tests

$100

≈ 6666 tests

Model	Category	Price
nano-banana-2-lite	Per image	$0.015 15 credits · 1 image

Why reAPI

Around four seconds per image

Speed is the headline. Google positions Nano Banana 2 Lite text-to-image at roughly the four-second mark for a 1K image — several times faster than Nano Banana 2 in published comparisons. For prompt testing, interactive tools and user-facing generation, Nano Banana 2 Lite is the family's responsive option.

A flat rate built for volume

Nano Banana 2 Lite bills per generated image — one flat rate whether you generate from text or edit with references, at half of Nano Banana 2's official list rate. Frequent, repeated generation is exactly what Nano Banana 2 Lite is priced for.

Editing without a mode switch

There is no separate edit endpoint: send image_urls alongside the prompt and Nano Banana 2 Lite switches to editing, keeping characters and composition consistent while it applies your instruction. One schema, both modalities, the same request to /api/v1/images/generations.

Nano Banana 2 Lite vs Nano Banana 2

Same family, different jobs: Nano Banana 2 Lite is the speed-and-volume tier; Nano Banana 2 is the full-capability model. Here is how they split, using Google's published specs and independent arena data.

Capability

Nano Banana 2 Lite on reApi

Nano Banana 2

Generation speed

About 4 seconds per 1K image — the family's fast tier, built for interactive products.

Several times slower per 1K image in published comparisons — tuned for quality over latency.

Output resolution

1K only — sized for drafts, app visuals, thumbnails and social assets.

0.5K up to 4K, for high-resolution finals and print-adjacent work.

Image editing

Prompt-based edits with up to 10 input images; fast local changes like recolors, backgrounds and object removal.

Richer reference system with dedicated character slots and search grounding for real-world context.

Arena quality scores

Editing Elo ≈ 1308, generation Elo ≈ 1250 — competitive with much slower models.

Editing Elo ≈ 1387, generation Elo ≈ 1270 — the family's quality ceiling.

Official list price

Half of Nano Banana 2's official per-image rate; reApi bills one flat per-image price on top of a discounted rate.

Double the per-image list rate, and up to 4× more at 4K output.

Best fit

Prompt testing, in-app generation, high-volume drafts, editing loops — anywhere latency and unit cost dominate.

Hero images, complex compositions and high-resolution production output.

Comparison reflects publicly documented behavior and independent benchmark data at the time of writing (July 2026). Both models are available on reApi; specifications may change as Google updates the family.

Integrate Nano Banana 2 Lite in three steps

step 01
Create an API key
Sign up at reApi and grab an API key. Free signup credits cover plenty of Nano Banana 2 Lite generations — it is one of the cheapest image models on the platform.
Open
step 02
Submit a generation
POST to /api/v1/images/generations with model: nano-banana-2-lite, a prompt, and optionally image_urls and an aspect_ratio. Nano Banana 2 Lite returns a task_id immediately.
Open
step 03
Poll for the image
GET /api/v1/tasks/:id until status is completed — with Nano Banana 2 Lite that is typically seconds, not minutes. The image URL arrives in output.image_urls.
Open

docs/api/nano-banana-2-lite

API reference

Drop-in code and the full parameter table.

View full reference

curl -X POST https://reapi.ai/api/v1/images/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-2-lite",
    "prompt": "a pig on the grass, cinematic light",
    "aspect_ratio": "16:9"
  }'

Parameter validation failed

Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.

Authentication or balance issue

401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.

Content or material rejected

Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.

Task failed or timed out

A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.

Frequently asked questions

Common questions about this model.

Nano Banana 2 Lite is Google DeepMind's Gemini 3.1 Flash-Lite Image, released June 30, 2026 — the fastest, most cost-efficient member of the Nano Banana image family. It generates 1K images from text and edits existing images from prompt instructions. On reApi, Nano Banana 2 Lite ships on the unified /api/v1/images/generations endpoint under the model id nano-banana-2-lite.