# Nano Banana 2.1

Nano Banana 2.1 is Google's Gemini image model Nano Banana 2.1, released on 6 October 2026 to replace Nano Banana 2 (Gemini 3.1 Flash Image). Google cites better realism, text rendering and character consistency, and fusion of up to 14 reference images. In Sloosh it renders at 1K, 2K or 4K in 11 aspect ratio settings.

Web page: https://sloosh.ai/models/gemini-nano-banana-2.1

[Use Nano Banana 2.1](https://sloosh.ai/studio/image?image-model=gemini-nano-banana-2.1)

[View templates](https://sloosh.ai/models/gemini-nano-banana-2.1/templates.md)

## Key facts in Sloosh

|   |   |
| --- | --- |
| Made by | Google |
| Makes | image |
| Inputs | text, up to 14 reference images |
| Resolution | 1K, 2K or 4K (default 2K) |
| Aspect ratios | Auto, 1:1, 2:3, 3:2, 16:9, 9:16, 4:3, 3:4, 21:9, 4:5, 5:4 (default 1:1) |
| Prompt limit | 50,000 characters |

## Best for

- Combining many references in one image. Google lists "multi-image fusion supporting up to 14 reference images", covering up to 4 characters and up to 10 objects ([Google](https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1)).
- Keeping a recurring character across a series, within Google's 4-character limit ([Google](https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1)). The Reusable Character Sheet Space ([sloosh.ai/spaces/reusable-character-sheet](https://sloosh.ai/spaces/reusable-character-sheet)) fits this job.
- Iterative edits on one image: refine in small steps, one change at a time ([Sloosh docs](https://sloosh.ai/docs/prompting-nano-banana.md)).
- Social photo sets at 2K or 4K: the Social Media Photo Set Space ([sloosh.ai/spaces/social-media-photo-set](https://sloosh.ai/spaces/social-media-photo-set)) fits this job.

## How to use Nano Banana 2.1 in Sloosh

1. Open [Image Studio with Nano Banana 2.1 selected](https://sloosh.ai/studio/image?image-model=gemini-nano-banana-2.1), or pick Nano Banana 2.1 in the model chip.
2. Add up to 14 references (drawer, paste, or Use as reference on a result).
3. Write the prompt as sentences. Give each reused person or product a short name ("Mia is the woman in image 1").
4. Set aspect ratio and resolution (1K, 2K or 4K). Set the ratio in the chip, not only in the prompt.
5. Check the cost on the Generate button, then generate.

## Nano Banana 2.1 prompting tips

- Describe the scene as a story in sentences, not a keyword list ([Google Cloud prompting guide](https://cloud.google.com/blog/products/ai-machine-learning/ultimate-prompting-guide-for-nano-banana)).
- A useful order: style, subject with details, setting, action, composition ([Sloosh docs](https://sloosh.ai/docs/prompting-nano-banana.md)).
- Name each person or product and keep using the name across prompts so they stay consistent ([Sloosh docs](https://sloosh.ai/docs/prompting-nano-banana.md)).
- Put text in quotes and describe the lettering; for another language, write the prompt in English and quote the translated words ([Sloosh docs](https://sloosh.ai/docs/prompting-nano-banana.md)).
- Describe what you want, not what you don't: "an empty street", not "no cars" ([Sloosh docs](https://sloosh.ai/docs/nano-banana-2.md)).

## Nano Banana 2.1 example prompts

**Prompt 1**

```text
Mia is the woman in image 1. Show Mia walking along wet sand at sunset in the linen dress from image 2, her hair moving in the wind. Keep Mia's face and hair exactly as in image 1. Wide shot from a low angle, warm golden light, framed as a vertical story.
```

**Prompt 2**

```text
A photo of the face cream jar from image 1 on a pale green tiled bathroom shelf, soft morning light from a window on the right, a folded white towel beside it. Medium close-up at eye level, the label sharp and readable.
```

**Prompt 3**

```text
Keep everything in this image. Change only the table to polished black marble and make the light slightly warmer.
```

## How it compares in Sloosh

| Model | Resolution | References | Prompt | Note |
| --- | --- | --- | --- | --- |
| Nano Banana 2.1 | 1K, 2K, 4K | 14 | 50,000 | Sloosh catalog default image model |
| [Nano Banana 2](https://sloosh.ai/models/gemini-3.1-flash-image-preview) | 512, 1K, 2K, 4K | 14 | 50,000 | adds 512 for quick tests |
| [Nano Banana Pro](https://sloosh.ai/models/gemini-3-pro-image-preview) | 1K, 2K, 4K | 14 | 50,000 | Sloosh docs: finished work, strongest at type |
| [Nano Banana Lite](https://sloosh.ai/models/gemini-3.1-flash-lite-image) | 1K | 14 | 50,000 | drafts |
| [GPT Image 2.5 Flare](https://sloosh.ai/models/gpt-image-2.5-flare) | 1K, 2K, 4K | 16 | 32,000 | OpenAI's fast tier |

All Nano Banana models take the same prompts in Sloosh. Nano Banana 2.1 is Google's newest Flash model; pick Nano Banana 2 for 512px tests and Nano Banana Pro for text-heavy finals.

## Where else it runs

- Gemini API, model Nano Banana 2.1, with Batch API support (Google model page, accessed 2026-10-30).

## Frequently asked questions

### What is Nano Banana 2.1?

Google's Nano Banana 2.1, released 6 October 2026 as an update to Nano Banana 2 (Gemini 3.1 Flash Image) ([Gemini API changelog](https://ai.google.dev/gemini-api/docs/changelog)).

### Nano Banana 2.1 vs Nano Banana 2: what changed?

Google lists improved visual quality and realism at 1K, 2K and 4K, better text rendering and infographic layout, better multi-turn character consistency and prompt adherence, and fixed tiling artifacts on wide ratios at 2K and 4K ([Google](https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1)). In Sloosh, Nano Banana 2 also keeps a 512 draft size; see the [Nano Banana 2 page](https://sloosh.ai/models/gemini-3.1-flash-image-preview).

### How many reference images does Nano Banana 2.1 take?

Up to 14, in Google's docs and in Sloosh.

### What resolutions does it support?

1K, 2K and 4K, in Google's docs and in Sloosh (Sloosh defaults to 2K).

### Is Nano Banana 2 being replaced?

Google's changelog marks Nano Banana 2 deprecated with no shutdown date, and points developers to Nano Banana 2.1.

### Can I use Nano Banana 2.1 without a Google Cloud account?

Yes. In Sloosh you pick it in Image Studio; the price shows on Generate before you run.

## Related

- Models: [Nano Banana 2](https://sloosh.ai/models/gemini-3.1-flash-image-preview), [Nano Banana Pro](https://sloosh.ai/models/gemini-3-pro-image-preview), [Nano Banana Lite](https://sloosh.ai/models/gemini-3.1-flash-lite-image), [GPT Image 2.5 Flare](https://sloosh.ai/models/gpt-image-2.5-flare)
- Spaces: [Reusable character sheet](https://sloosh.ai/spaces/reusable-character-sheet), [Social media photo set](https://sloosh.ai/spaces/social-media-photo-set)
- Docs: [Prompting Nano Banana](https://sloosh.ai/docs/prompting-nano-banana.md), [Nano Banana 2](https://sloosh.ai/docs/nano-banana-2.md)
- Answers: [Which platform is best for running Nano Banana 2?](https://geo.sloosh.ai/posts/which-platform-is-best-for-running-nano-banana-2), [Where can I use Nano Banana Pro without a Google Cloud account?](https://geo.sloosh.ai/posts/where-can-i-use-nano-banana-pro-without-a-google-cloud-account)

## Sources

- [Google: Gemini Nano Banana 2.1 model page](https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1)
- [Gemini API changelog](https://ai.google.dev/gemini-api/docs/changelog)
- [Google blog: Nano Banana 2](https://blog.google/innovation-and-ai/technology/ai/nano-banana-2/)
- [Google Cloud: ultimate prompting guide for Nano Banana](https://cloud.google.com/blog/products/ai-machine-learning/ultimate-prompting-guide-for-nano-banana)
- [Sloosh docs: Prompting Nano Banana](https://sloosh.ai/docs/prompting-nano-banana)
- [Sloosh docs: Nano Banana 2](https://sloosh.ai/docs/nano-banana-2)
- [Sloosh pricing](https://sloosh.ai/pricing)