Create refined visuals from text with precise detail and flexible style control for design workflows.
Google's Nano Banana 2.1 Edit changes a photo from a written instruction, using up to 10 references at 1K, 2K, or 4K. Trading manual retouching for one instruction that names what must stay, it suits marketers, catalog teams, and designers. For developers, Nano Banana 2.1 Edit on RunComfy can be used in the browser and via an HTTP API, so you don't need to host or scale the model yourself.
Ideal for: Outfit and Scene Changes | Product Placement | Multi-Reference Composites
You upload one or more photos and say what should change. A face, a logo, a product shape, or a pose stays unless you name it. Nano Banana 2.1 Edit is the same Gemini 3.6 Flash image model as the text-to-image page, used here on a picture you already have. Google's published comparisons placed it ahead of Nano Banana 2 and Nano Banana Pro on edits, recognizable people, product detail, restyling, and multi-photo jobs.
Inside one Nano Banana 2.1 Edit request, a background can move while the person stays, or a garment can change while the face stays.
| Effect | How it shows up |
|---|---|
| Say the change | "Replace the street" or "put this jacket on" is enough. There is no mask control on this page. Paint or a scribble on the photo can mark a region: say what should replace it, and ask for the mark to be cleared, because the ink sometimes remains. |
| People and products hold | A face, a shoe, or a bottle usually stays recognizable in a new setting. Google's tests show a gain here over earlier Nano Banana models, and they also note it still misses sometimes. |
| Several photos, one frame | Up to 10 images. Put the photo being edited first, then name the others by order, such as the jacket from image 2 or the room from image 3. One to three images is steadier for a simple change. |
| Finish size matches a new still | Draft at 1K. Use 2K or 4K when small labels must be read. Wide and tall frames include 1:4, 4:1, 1:8, and 8:1. Auto follows the input photo. |
A pose you hoped to change will sometimes stick to the original photo. Check the result before you rely on Nano Banana 2.1 Edit for a precise left-right layout. Small lettering is often soft at 1K, and a long paragraph of type is a weak fit. Move words that must be read to 2K or 4K on Nano Banana 2.1 Edit.
Everything comes from the photos you upload, and this page does not look anything up on the web. Video files and PDFs are not inputs here.
If there is no photo yet, start on the text-to-image page.
The first table lists the controls on this Nano Banana 2.1 Edit page.
| Parameter | Required | Type | Default | Range / Options | How to choose |
|---|---|---|---|---|---|
prompt* | Yes (*) | String | Example prompt | Text | Say the change first, then the constraint. Name extra references by image number. |
image_urls* | Yes (*) | Array | Example image | 1–10 images | JPEG, PNG, or WebP. Each reference adds $0.0008. Put the photo being edited first. |
aspect_ratio | No | String | auto | auto, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, 1:4, 4:1, 1:8, 8:1 | auto follows the input. Set a ratio when the placement is fixed. |
resolution | No | String | 1K | 1K, 2K, 4K | Draft at 1K. Raise it once the edit is right. |
The wider Nano Banana 2.1 Edit model also accepts text-only generation, video, and PDF input. Those are not controls on this page. Seed, temperature, and top-p are not accepted on Nano Banana 2.1 Edit and will be rejected if sent.
| Core dimension | Detail |
|---|---|
| Model | gemini-nano-banana-2.1 |
| This page | Image edit from 1–10 reference images plus a text instruction. |
| Output | One still at 1K, 2K, or 4K. No 0.5K size. |
| Aspect ratio | auto, or 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1. |
| Reference images | Up to 10. JPEG, PNG, or WebP. |
Nano Banana 2.1 Edit bills the output size, then adds a flat fee for each reference image. The reference fee does not scale with resolution.
| Item | Price |
|---|---|
| 1K | $0.039 |
| 2K | $0.059 |
| 4K | $0.125 |
| Each reference image | +$0.0008 |
| Example | Price |
|---|---|
| 1K, 1 reference | $0.0398 |
| 1K, 4 references | $0.0422 |
| 2K, 1 reference | $0.0598 |
| 4K, 1 reference | $0.1258 |
| 1K, 10 references | $0.0470 |
Use this order: [what to change] + [what must stay] + [which image supplies which part] + [light and frame] + [any exact text].
Use this as a family guide. Based on publicly available information. Maximum size and every input are not always available on the same page.
| Model | Output sizes | References | Standout |
|---|---|---|---|
| Nano Banana 2.1 Edit | 1K, 2K, 4K | Up to 10 images | Instruction-led edits and extreme aspect ratios up to 8:1. |
| Nano Banana 2 Edit | 1K, 2K, 4K | Multiple images | Earlier Flash image edit. It no longer offers a 0.5K draft size. |
| Nano Banana Pro Edit | 1K, 2K, 4K | Multiple images | Heavier Pro image edit when you want that model's look instead of the Flash-tier update. |
| Nano Banana 2 Lite Edit | 1K | Multiple images | Lower-cost 1K edits when 2K and 4K are not required. |
Choose Nano Banana 2.1 Edit when the instruction has to keep a person or product recognizable and you may need more than a couple of references. Move to the text-to-image page when you have no starting photo.
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Nano Banana 2.1 Edit changes a photo from a text instruction, using 1 to 10 reference images. Typical jobs are wardrobe or background changes, product placement, and composites that pull a garment or room from a second file. The result is a still at 1K, 2K, or 4K.
Nano Banana 2.1 Edit is the current high-efficiency edit, with up to 10 references and no 0.5K size. It keeps the 1K, 2K, and 4K range and adds extreme frames such as 8:1. Nano Banana 2 Edit no longer offers 0.5K. Nano Banana 2 Lite Edit stays at 1K.
Nano Banana 2.1 Edit requires at least one image and accepts up to 10. JPEG, PNG, and WebP are the practical formats on this page. One to three images is usually more stable for a simple change; add more only when the instruction names which file supplies which part.
Say the change first, then what Nano Banana 2.1 Edit must keep, such as a face, logo, or pose. Call extra files by order, for example the jacket from image 2. Put the photo being edited first in the upload list.
Not on this page. Nano Banana 2.1 Edit works only from the photos you upload and the instruction you write, so add a reference image when the edit needs a specific real-world look.
Nano Banana 2.1 Edit has no 0.5K output and rejects seed, temperature, and top-p. A painted mask is not a control on this page; the instruction describes the region to change. Check the RunComfy parameter panel for the current file-size limit.
Try Nano Banana 2.1 Edit in the RunComfy Playground, then send the same prompt, images, aspect ratio, and resolution through the RunComfy API. Each run spends usd credits. The API uses the same model and does not add a separate uptime guarantee.
Nano Banana 2.1 Edit is $0.039 at 1K, $0.059 at 2K, and $0.125 at 4K, plus $0.0008 for each reference image. A 1K edit with four references is $0.0422.
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