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Google: Nano Banana Pro (Gemini 3 Pro Image): AI model

Gemini 3 Pro Image is Google's most advanced image model, built on Gemini 3 Pro, with strong multimodal reasoning and in-image text. Served asynchronously through Hormouz from inside Iran.

Context window:
131,072 tokens
Input:
$2/1M tokens
Output:
$12/1M tokens
Type:
text, image
  • Vision
  • Tools
  • Streaming
  • Long context

Thinking levels: Always thinks

Gemini 3 Pro Image is Google's most advanced image-generation and editing model, built on Gemini 3 Pro. It adds significantly improved multimodal reasoning, real-world grounding and high-fidelity synthesis, and can incorporate real-time information via Search grounding.

It offers industry-leading text rendering inside images. Including long passages and multilingual layouts. Consistent multi-image blending and accurate identity preservation across several subjects. It is served through Hormouz behind an asynchronous predictions API: submit a prediction, then poll until the image is ready.

Pricing is token-based: $2 per million input tokens, $12 per million output tokens and $120 per million image-output tokens. Hormouz provides stable access to Gemini 3 Pro Image from inside Iran, with no foreign credit card or circumvention tooling required.

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and...

Quickstart

# The image comes back as a data: URI on message.images, not as text.
URL=$(curl -s https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-3-pro-image",
    "modalities": ["image", "text"],
    "messages": [{"role": "user", "content": "A red apple on a wooden table"}]
  }' | jq -r '.choices[0].message.images[0].image_url.url')

# Take the extension from the URI itself — this model may answer png or jpeg.
EXT=$(printf '%s' "$URL" | sed -n 's|^data:image/\([a-z]*\);.*|\1|p')
printf '%s' "$URL" | sed 's/^data:[^,]*,//' | base64 -d > "output.${EXT:-png}"

Specs

VendorGoogle
TypeText, Image
Context window131,072 tokens
Pricing$2.00/M in · $12.00/M out
APIChat Completions
CapabilitiesStreaming · Vision · Tools

Code example

cURL
# The image comes back as a data: URI on message.images, not as text.
URL=$(curl -s https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-3-pro-image",
    "modalities": ["image", "text"],
    "messages": [{"role": "user", "content": "A red apple on a wooden table"}]
  }' | jq -r '.choices[0].message.images[0].image_url.url')

# Take the extension from the URI itself — this model may answer png or jpeg.
EXT=$(printf '%s' "$URL" | sed -n 's|^data:image/\([a-z]*\);.*|\1|p')
printf '%s' "$URL" | sed 's/^data:[^,]*,//' | base64 -d > "output.${EXT:-png}"
Python
import base64
from openai import OpenAI

client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="google/gemini-3-pro-image",
    messages=[{"role": "user", "content": "A red apple on a wooden table"}],
    modalities=["image", "text"],
)

# message.content is None on an image reply — the picture is in message.images.
for i, img in enumerate(response.choices[0].message.images or []):
    header, b64 = img["image_url"]["url"].split(",", 1)
    ext = "png" if "image/png" in header else "jpg"
    with open(f"output_{i}.{ext}", "wb") as f:
        f.write(base64.b64decode(b64))
JavaScript
import OpenAI from "openai";
import fs from "node:fs";

const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "google/gemini-3-pro-image",
  messages: [{ role: "user", content: "A red apple on a wooden table" }],
  modalities: ["image", "text"],
});

// message.content is null on an image reply — the picture is in message.images.
(response.choices[0].message.images ?? []).forEach((img, i) => {
  const url = img.image_url.url;
  const ext = url.startsWith("data:image/png") ? "png" : "jpg";
  fs.writeFileSync(`output_${i}.${ext}`, Buffer.from(url.slice(url.indexOf(",") + 1), "base64"));
});

Buy the Google: Nano Banana Pro (Gemini 3 Pro Image) API, paid in rial

  • Buy credit with an Iranian bank card; no foreign card or account needed.
  • One Hormouz key reaches Google: Nano Banana Pro (Gemini 3 Pro Image) and 600+ other models, and you pay only for what you use.
  • No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Create an accountBuy Gemini API access, paid in rial

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FAQ

How much does Gemini 3 Pro Image cost?
Billing is token-based: $2 per million input tokens, $12 per million output tokens and $120 per million image-output tokens. Current rates are shown in the Hormouz dashboard.
How do I access Gemini 3 Pro Image from inside Iran?
Create an account on Hormouz and generate an API key. Hormouz provides a stable path to Gemini 3 Pro Image from inside Iran, with no foreign credit card or circumvention tooling required.
How is Gemini 3 Pro Image served on Hormouz?
On Hormouz, Gemini 3 Pro Image is served behind an asynchronous predictions API: submit a prediction, then poll until the result is ready. Point your base URL at Hormouz and use a Hormouz key.
What can Gemini 3 Pro Image do?
Built on Gemini 3 Pro, it generates and edits images with strong multimodal reasoning, industry-leading in-image text rendering, multi-image blending and identity preservation, plus Search grounding for real-world information. It runs on an asynchronous predictions API.

Updated 2026-10-13