Nano Banana Pro (Gemini 3 Pro Image)

Max size

Input → output

text → image

Weights

–

Providers

1 provider · price, latency and uptime

ProviderPer imageLatency p50Uptime 24hRetention

Replicate

$0.15–$0.30– – may retain

Listed price: $0.15–$0.30 / image
Most per image: $0.30
Precision: –
Regions: default
Headquarters: –
Data retention: May retain prompts

Supported parameters

naspect_ratioresolution

By default the router tries our listings in routing order and fails over before the first byte — never mid-answer. Uptime is our own 24h measurement; a dash means too few requests to measure yet. Open the row for the provider's specs and policies.

Quickstart

any SDK — only the base URL changes

curl --max-time 480 https://api.routerplus.com/v1/images/generations \
  -H "Authorization: Bearer $TM_API_KEY" -H "content-type: application/json" \
  -d '{"model":"nano-banana-pro","prompt":"a red dot","aspect_ratio":"1:1"}'

# OpenAI SDK — only the base URL changes
import base64, os
from openai import OpenAI
client = OpenAI(base_url="https://api.routerplus.com/v1", api_key=os.environ["TM_API_KEY"], timeout=480.0, max_retries=0)
r = client.images.generate(model="nano-banana-pro", prompt="a red dot",
  extra_body={"aspect_ratio": "1:1"})
image_bytes = base64.b64decode(r.data[0].b64_json)

import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.routerplus.com/v1", apiKey: process.env.TM_API_KEY, timeout: 480000, maxRetries: 0 });
const r = await client.images.generate({ model: "nano-banana-pro", prompt: "a red dot", aspect_ratio: "1:1" });
const imageBytes = Buffer.from(r.data[0].b64_json, "base64");

.qs pre[hidden] { display: block; border-top: 1px solid var(--code-line); } .qsb { display: none; } .qcode::before { content: attr(data-lang); display: block; color: var(--code-muted); font-size: 11px; margin-bottom: 6px; }

Pricing

billed at the cost Replicate reports · at most $0.30 per image

output image	$0.15 / image · 1K
output image	$0.15 / image · 2K
output image	$0.30 / image · 4K

Every billed response carries usage.cost — recompute your bill from the wire.

Parameters

n — integer 1–1 (default 1)

aspect_ratio — 1:1 · 2:3 · 3:2 · 3:4 · 4:3 · 4:5 · 5:4 · 9:16 · 16:9 · 21:9 (default 1:1)

resolution — 1K · 2K · 4K (default 1K)

Values outside these are refused with a 400 that names the field.