When was Nano Banana 2.1 released?

Google released Nano Banana 2.1 on 6 Oct 2026. It is available through the Opper gateway.

Does Nano Banana 2.1 support zero data retention?

With abuse monitoring, yes. On Google Cloud through the Opper gateway, prompts and outputs are not used for training and are kept only for abuse monitoring.

Where is Nano Banana 2.1 hosted?

Nano Banana 2.1 runs on US hosting routes through the Opper gateway.

Is Nano Banana 2.1 trained on prompts and outputs?

No. Every hosting route for Nano Banana 2.1 is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for Nano Banana 2.1?

Yes. A GDPR Data Processing Agreement is available on at least one route serving Nano Banana 2.1. Contact hello@opper.ai to receive it.

Nano Banana 2.1

by Google

Released 6 days after Gemini 4 Argon · Announcement · All Google releases

Nano Banana 2.1 is Google's update to Nano Banana 2 (Gemini 3.1 Flash Image), generally available on Vertex AI since October 6, 2026. It generates and edits images from text, images, video and PDF input within a 131,072 token context, and returns images with optional text. It renders at 1K, 2K and 4K across a wide set of aspect ratios, including the panoramic 1:4, 4:1, 1:8 and 8:1, where Google fixed the tiling artifacts of the previous version. It improves text rendering and infographic layout, and fuses up to 14 reference images while keeping characters consistent. Thinking is supported; structured output is not. An image costs about half what it does on Nano Banana 2, which makes it the default choice for high-volume product, marketing and localization work.

Call Nano Banana 2.1 on Opper through POST /v3/images. Sign up without a credit card. Get started

Get your API key Try in chat Compare

Key info

Input

Output

Features

Context window

131K

Max output

33K

Text input price

$1.50 /1M

Text output price

$7.50 /1M

Image output price

$30.00 /1M

Released

6 Oct 2026

US residency available on Google Cloud
Zero data retention with abuse monitoring
No training by default
GDPR DPA available

Available routes

Nano Banana 2.1 runs on 2 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
Google Cloud	US		No	$1.50	$7.50	Input price
Google Cloud	Multi		No	$1.50	$7.50	$0.15

Live routes and prices as JSON: api.opper.ai/v3/models?q=gemini-nano-banana-2.1

Uptime and availability

Nano Banana 2.1 runs on a single route through the Opper gateway today, so its availability is that provider's availability.

98.86%route uptime, last 30 days

Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting Nano Banana 2.1 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Google Cloud — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for abuse monitoring only, for a window the provider does not state, and are not used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: With abuse monitoring, window not stated.
Training: No training on customer data.
Logging: Abuse monitoring
Abuse monitoring: On by default, holds flagged content, 55 days, a person can view samples
GDPR DPA: DPA available
Transfer mechanism: SCCs

Google Cloud — Multi-region

Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention: With abuse monitoring, flagged content held.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, holds flagged content, 90 days, a person can view samples
GDPR DPA: DPA available
Transfer mechanism: SCCs

Get started

Call Nano Banana 2.1 through the Opper gateway with one API key. Nano Banana 2.1 draws on Opper's images endpoint, POST /v3/images, and also answers in chat on the OpenAI-compatible endpoint.

See the Opper images guide and the Opper multimodal skill.

Nano Banana 2.1 is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

1curl -s https://api.opper.ai/v3/images \
2  -H "Authorization: Bearer $OPPER_API_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "gemini/gemini-nano-banana-2.1",
6    "prompt": "A watercolor lighthouse on a cliff at sunrise",
7    "aspect_ratio": "1:1",
8    "quality": "medium"
9  }' \
10  | jq -r '.data[0].b64_json' | base64 --decode > image.png
11
12# To edit an image, add "image": "https://..." (or a file_<id>) to the body