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Nano Banana 2.1 — Image Generation & Editing

Nano Banana 2.1 is Google's latest Nano Banana image model, generally available since October 6, 2026. Nano Banana 2.1 generates and edits images at 1K, 2K or 4K with sharper text rendering, up to 14 reference images and optional Google Search grounding. On reAPI, Nano Banana 2.1 costs one flat price per image at every resolution.

Highlights
Google Gemini image model · 1K / 2K / 4K · search grounding
Best for
Infographics, posters with text, product shots, consistent characters
Input
Text, plus up to 14 reference images and 10 reference videos
Output
One Nano Banana 2.1 JPEG image per request
Input

≤ 262,144 chars

Default: auto

1k · 2k · 4k

0/14 files

Up to 14 · public URLs

0/10 files

Up to 10 · ~14 MB total · public URLs

Off by default

Off by default

minimal · medium · high

Estimated cost~$0.0330 credits
Result

Try one of these prompts

Pricing

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

First test cost
$0.0330 credits

One sample at the cheapest tier (1 image).

Testing budget guide
Add credits
$10
≈ 333 tests
$50
≈ 1666 tests
$100
≈ 3333 tests
Per Nano Banana 2.1 image · 1K, 2K or 4K
$0.03
Price · 1 image

What is Nano Banana 2.1?

Nano Banana 2.1 is the October 2026 update to Google's Nano Banana 2 image model. Google describes Nano Banana 2.1 as better across the board, with the biggest gains in visual design, text and infographic layout, mask-based editing and subject consistency. One Nano Banana 2.1 model id on reAPI covers text-to-image, editing and multi-image fusion, from 8:1 banners to 1:8 strips at up to 4K.

Illustrated posters for the Nano Banana 2.1 page

What you can build with this model

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

Illustration: infographics with text that reads

Infographics and posters with text that reads

Nano Banana 2.1 lays out headings, labels and step diagrams with clean lettering — Google lists text rendering and infographic layout among the main improvements over Nano Banana 2. Put the exact words in quotes and give Nano Banana 2.1 a high thinking level for dense layouts.

Try an infographic prompt
Illustration: one product kept consistent across scenes

Edits that keep your subject consistent

Give Nano Banana 2.1 up to 14 reference images — products, characters, backgrounds — and describe the scene. Nano Banana 2.1 keeps the same mug, face or logo across shots, which makes Nano Banana 2.1 a fit for product catalogs and storyboards.

Illustration: wide banners and tall strips

Wide banners and tall strips at 4K

Nano Banana 2.1 supports 14 aspect ratios, including 4:1 and 8:1 panoramas and 1:4 and 1:8 strips, at 1K, 2K or 4K. Google fixed the tiling artifacts Nano Banana 2 showed at these ratios, so Nano Banana 2.1 web headers and banners come out clean.

Why reAPI for Nano Banana 2.1

One flat Nano Banana 2.1 price at every resolution

Nano Banana 2.1 costs the same at 1K, 2K and 4K, with reference images, grounding and thinking included. 1 credit equals $0.001, credits never expire, and failed generations are refunded automatically.

Google's newest Nano Banana

Nano Banana 2.1 is the generally available successor to Nano Banana 2; Nano Banana 2.1 brings improved realism, text rendering and editing. Google has scheduled Nano Banana 2's Gemini API shutdown for October 29, 2026.

One endpoint for every image model

Call Nano Banana 2.1 from the same images endpoint as Nano Banana Pro, GPT Image and Seedream. Each model keeps its own parameters, so check the API docs when you switch.

Nano Banana 2.1 vs Nano Banana 2

Nano Banana 2.1 is the update to Nano Banana 2. Both accept 14 reference images and Google Search grounding; Nano Banana 2.1 differs in output quality, thinking control, resolutions and how it is priced on reAPI.

Capability
Nano Banana 2.1 on reAPI
Nano Banana 2
Pricing on reAPI
One flat price per image at every resolution
Priced by output resolution
Resolutions
1K, 2K, 4K
0.5K, 1K, 2K, 4K
Thinking control
Minimal, medium or high (default medium)
Minimal or high in Google's API
Wide and tall ratios at 2K/4K
Tiling artifacts fixed by Google
Tiling artifacts at these sizes
Images per request
One Nano Banana 2.1 image
Up to four on reAPI
Google API status
Generally available since October 6, 2026
Deprecated; shutdown scheduled for October 29, 2026

Comparison reflects Google's documentation and the parameters of both models on reAPI at the time of writing and may change.

Call Nano Banana 2.1 in three steps

  1. step 01

    Create an API key

    Sign up and create a key in the dashboard. New accounts get a small test credit for their first Nano Banana 2.1 images.

    Open
  2. step 02

    Try it in the playground

    Write a prompt, pick an aspect ratio and resolution, and run Nano Banana 2.1 right on this page.

    Open
  3. step 03

    Call the API

    POST to /api/v1/images/generations with model nano-banana-2.1, then poll the task until the Nano Banana 2.1 image is ready.

    Open
docs/api/nano-banana-2-1

API reference

Drop-in code and the full parameter table.

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-2.1",
    "prompt": "An infographic poster titled HOW COFFEE IS MADE",
    "aspect_ratio": "3:4",
    "resolution": "2k"
  }'

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 2.1 is Google's image generation and editing model, released as an update to Nano Banana 2. It creates and edits images at 1K, 2K or 4K, accepts up to 14 reference images and can ground images in Google Search. On reAPI you call Nano Banana 2.1 with the model id nano-banana-2.1.

start building

Ready to ship?

Try it in the playground or grab an API key to integrate now.