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Multi-model generation + Developer API

AI banners thatjust look right.

Generate banners with leading AI models, automatically rank results by visual quality, and get the best output delivered in seconds.

Start GeneratingSee how it works

No credit card · Free during beta

4+
AI models available
≥ 80
Quality threshold
~35s
Median time to result
100%
Auto-evaluated outputs
Capabilities

Everything you need to create stunning banners

A complete banner generation platform — from prompt to polished output, with built-in quality scoring and multi-model flexibility.

Prompt-based generation

Type what you want, optionally drop in a reference image. No design tools, no templates to wrestle with.

Multi-model selection

Choose from several state-of-the-art image models — SDXL, Imagen, Flux, and more — and pick the one that fits your creative vision.

Automated scoring

An AI evaluator scores every output for composition, clarity, and on-brief accuracy. Only ≥ 80 are surfaced.

Best-output selection

Nanozen picks the winning banner automatically. Runners-up stay one click away when you want to compare.

Dark-first interface

Designed for long sessions. Crisp typography, calm contrast, and a one-click theme toggle when you need it.

Built to scale

Asynchronous model execution, efficient image processing, and storage for every asset you generate.

Workflow

From prompt to banner in four steps

The pipeline is fully automated. You stay in the loop only when you want to.

  1. 01
    Step 1

    Describe your banner

    Write a prompt and optionally attach a reference. Pick aspect ratio and tone.

  2. 02
    Step 2

    Choose your model

    Select from multiple state-of-the-art image models — SDXL, Flux, Imagen, and more — to match your creative needs.

  3. 03
    Step 3

    Score & rank

    Every output is scored for visual quality. Anything below 80 is filtered out.

  4. 04
    Step 4

    Pick the winner

    The top-scoring banner is selected automatically. Runners-up stay one click away.

Developer API

Image generation via API

Integrate Nanozen's banner generation into your product. One endpoint, multiple models to choose from, quality-scored outputs — all through a simple REST API.

curl -X POST https://nanogen.sylusai.com/api/v1/generate \
  -H "Authorization: Bearer ngn_a1b2c3d4..." \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Modern SaaS product launch banner",
    "model": "flux-1-schnell",
    "aspect": "16:9",
    "style": "Modern"
  }'
Response200 OK
{
  "id": "gen_1717680000_x8k2m9",
  "model": "flux-1-schnell",
  "prompt": "Modern SaaS product launch banner",
  "aspect": "16:9",
  "imageUrl": "https://nanogen.sylusai.com/gen/...",
  "score": 92,
  "latencyMs": 1840,
  "usage": {
    "rpm_remaining": 58,
    "rpd_remaining": 994
  }
}

Multi-model access

Single API, multiple image models. Switch between SDXL, Flux, Imagen & more with just a model slug.

Bearer token auth

Simple API keys with per-key rate limits. No complex OAuth flows — just add your token and go.

Usage tracking

Real-time usage dashboard with per-key analytics. Know exactly how your integration performs.

Async Webhooks

Receive instant HTTP callbacks when your generation tasks complete. No continuous polling required.

Get API keyView pricing
API Pricing

Simple, transparent pricing

Start free, scale as you grow. No hidden fees, no surprises.

Free

₹0forever

Perfect for testing and prototyping

  • 1 requests / day
  • 1 requests / minute
  • All enabled image models
  • Quality scoring on every output
  • Usage dashboard
  • Community support
Get free API key
Popular

Pro

₹2500/month

For production apps and teams

  • 25 requests / day
  • 5 requests / minute
  • Priority model access
  • Quality scoring + breakdown
  • Advanced analytics
  • Priority support
  • Custom rate limits

Enterprise

Custom

For high-volume and custom deployments

  • Unlimited requests
  • Custom rate limits
  • Dedicated model endpoints
  • SLA guarantee
  • White-label option
  • Dedicated support
  • Custom integrations
  • On-premise deployment
Wall of love

Trusted by forward-thinking teams

See how marketers, founders, and developers are using Nanozen to create stunning banners and streamline their creative workflows.

"We used to spend 2–3 hours per campaign banner with our design team. Now I write a prompt, pick a model, and have a polished hero banner in under a minute. Nanozen has completely transformed our creative workflow."

Sarah Chen
Marketing Director, Launchpad

"As a bootstrapped startup, we couldn't afford a full-time designer. Nanozen lets us produce professional-quality banners for product launches, social ads, and landing pages — all from a single prompt."

Raj Patel
Founder & CEO, PixelForge

"We integrated the Nanozen API into our marketing automation pipeline. Being able to switch between SDXL, Flux, and Imagen with a single parameter gives us creative variety without any extra tooling."

Emily Torres
Growth Engineer, ScaleKit

"Generating product banners at scale was our biggest bottleneck. Nanozen's quality scoring ensures every banner meets our brand standards before it goes live. We ship 10× more creatives now."

David Kim
E-commerce Manager, NovaMart

"The automatic quality scoring is a game-changer. Instead of reviewing dozens of options manually, Nanozen surfaces only the best outputs. Our banner consistency has never been better."

Maria Santos
Creative Director, BrightWave

"The REST API is beautifully simple — one endpoint, pick your model, get a scored banner back. We built a Slack bot that generates campaign banners on demand. Our marketing team loves it."

Alex Rivera
Developer Advocate, BuildStack

Ready to make your first banner?

No setup, no credit card. Generate, score, ship — in under a minute.

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