Nano Banana Pro Text to Image
google/nano-banana-2/text-to-image
Gemini 3.0 Pro Image. The high-fidelity choice for 4K visuals, multilingual text rendering, and pro camera controls.
Examples



Parameters
| Name | Type | Default | Constraints | Description |
|---|---|---|---|---|
| prompt *Prompt | textarea | — | ≤ 5000 chars | Describe the image you want to generate. Be specific about the subject, style, colors, and composition. |
| aspect_ratioAspect Ratio | select | 16:9 | 1:1 | 3:2 | 2:3 | 3:4 | 4:3 | 4:5 | 5:4 | 9:16 | … | Choose the aspect ratio for the generated image. |
| resolutionResolution | select | 1k | 512 | 1k | 2k | 4k | Select the resolution of the output image. |
API
Call this model through one unified REST API. Get a key on the API Keys page.
cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/google/nano-banana-2/text-to-image" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"input": {
"prompt": "A serene mountain landscape at sunrise, with snow-covered peaks and a crystal-clear reflective lake in the foreground. Include vibrant orange and pink hues in the sky, realistic textures, and detailed trees on the slopes.",
"aspect_ratio": "16:9",
"resolution": "1k"
}
}'
# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
-H "Authorization: Bearer YOUR_API_KEY"Python
import time, requests
API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}
# 1) Submit
resp = requests.post(
"https://www.namifusion.com/api/v1/marketplace/run/google/nano-banana-2/text-to-image",
headers=HEADERS,
json={
"input": {
"prompt": "A serene mountain landscape at sunrise, with snow-covered peaks and a crystal-clear reflective lake in the foreground. Include vibrant orange and pink hues in the sky, realistic textures, and detailed trees on the slopes.",
"aspect_ratio": "16:9",
"resolution": "1k"
}
},
)
resp.raise_for_status() # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()
# 2) Poll until a terminal state (completed / failed / cancelled).
# This model is allowed up to 300s server-side.
deadline = time.time() + 360
while task.get("status") not in ("completed", "failed", "cancelled"):
if time.time() > deadline:
raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
time.sleep(3)
poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
poll.raise_for_status()
task = poll.json()
print(task["status"], task.get("output"))JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };
// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/google/nano-banana-2/text-to-image", {
method: "POST",
headers: { ...HEADERS, "Content-Type": "application/json" },
body: JSON.stringify({
"input": {
"prompt": "A serene mountain landscape at sunrise, with snow-covered peaks and a crystal-clear reflective lake in the foreground. Include vibrant orange and pink hues in the sky, realistic textures, and detailed trees on the slopes.",
"aspect_ratio": "16:9",
"resolution": "1k"
}
}),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();
// 2) Poll until a terminal state (completed / failed / cancelled).
// This model is allowed up to 300s server-side.
const deadline = Date.now() + 360 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
await new Promise((r) => setTimeout(r, 3000));
const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
task = await poll.json();
}
console.log(task.status, task.output);Documentation
Google Nano Banana 2
Pro-quality image generation at flash speed
Google Nano Banana 2 (Gemini 3.1 Flash Image) is a cutting-edge text-to-image AI model designed for creators who demand high-quality visuals with minimal latency. Supporting resolutions from 512px to 4K, this model excels in generating photorealistic images with improved text rendering, character consistency for up to five characters, and real-world knowledge integration. With no cold starts and affordable pricing, it is optimized for professional use.
🚀 Key Features
- Flash-speed generation: Delivers high-quality images in seconds, ensuring minimal latency.
- Multi-resolution support: Outputs available in 0.5K, 1K, 2K, and 4K resolutions to meet diverse needs.
- Flexible aspect ratios: Supports a wide range of aspect ratios, including 1:1, 16:9, 9:16, and more.
- Enhanced text rendering: Generates images with improved text clarity and character consistency for up to five characters.
- Real-world knowledge integration: Optionally enhances outputs with real-time web and image search.
- Format choice: Export images in PNG or JPEG formats based on your requirements.
🛠️ Technical Specifications
| Specification | Details |
|---|---|
| Model Architecture | Gemini 3.1 Flash Image |
| Input Format | Text prompt |
| Output Format | PNG, JPEG |
| Resolution | 0.5K, 1K (default), 2K, 4K |
| Aspect Ratio | 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 |
| Web Search | Optional (default: disabled) |
| Image Search | Optional (default: disabled) |
| Latency | Flash-speed generation |
Sample Prompts
- Prompt: "A futuristic cityscape at sunset, with flying cars and neon lights."
- Prompt: "A portrait of a medieval knight in full armor, standing in a forest."
💰 Pricing
| Resolution | Cost (USD) | Additional Features |
|---|---|---|
| 0.5K | $0.045 | |
| 1K | $0.07 | |
| 2K | $0.105 | |
| 4K | $0.14 | |
| Web Search | +$0.014 | |
| Image Search | +$0.014 |
💡 Best Use Cases
- Cinematic Imagery: Generate atmospheric scenes with photorealistic lighting and effects.
- Character Portraits: Create detailed and consistent character illustrations for storytelling.
- Social Media Content: Produce visually appealing images tailored for various platforms.
- Marketing & Ads: Design professional visuals for advertising campaigns.
- Concept Art: Visualize creative ideas with high-quality rendering.
🔗 Related Models
- Nano Banana Pro Text-to-Image: Enhanced quality for professional-grade outputs.
- Nano Banana Pro Edit: Advanced image editing capabilities.
- Nano Banana 2 Edit: Edit images with text instructions.
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