Free AI Tool

AI Image Generator

Turn text into stunning images in seconds. Renderful’s AI image generator runs the best text-to-image models — FLUX and Seedream — behind one simple API. Start free, then pay just pennies per image.

Generate images freeBrowse image models

How to generate AI images

1

Create a free account

Sign up for Renderful and get free credits — no credit card required to start.

2

Send a prompt

POST a text prompt to /api/v1/generations with your chosen model (e.g. flux-dev), or generate from the dashboard.

3

Get your image

Receive a hosted image URL in seconds. Download it or use it directly in your app.

Image models you can use

FLUX.1 [schnell]

$0.003 / image

Black Forest Labs

Fastest FLUX model — near-instant images, ideal for drafts and high volume.

View model →

FLUX.1 [dev]

$0.025 / image

Black Forest Labs

Best-in-class prompt adherence and detail for production-grade images.

View model →

Seedream 4.5

$0.04 / image

ByteDance

Flagship photorealism with exceptional texture and lighting.

View model →

Generate an image with the API

One POST request returns a hosted image URL.

curl -X POST https://api.renderful.ai/api/v1/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "text-to-image",
    "model": "flux-dev",
    "prompt": "a red panda coding at a desk, cinematic lighting"
  }'

See the full reference in the API docs.

Why use Renderful

Multiple top models

FLUX, Seedream and more behind one API — switch models with a single parameter.

Pay per image

From $0.003 per image. No subscription, no monthly minimum, no platform fee.

Built for developers

Plain REST with Python, Node.js and cURL examples. SDK optional.

Commercial-ready

Generate images you can use in products, ads and content, per model terms.

High resolution

Control size, aspect ratio, guidance and seed for reproducible output.

Fast & scalable

Schnell models return in ~1–2 seconds; scale to thousands of images.

Frequently asked questions

What is the Renderful AI image generator?

It is a free-to-start text-to-image tool and API. Describe what you want in words and Renderful generates an image using top models like FLUX and Seedream, all through one unified REST API.

Is the AI image generator free?

You get free credits when you sign up, so you can generate images at no cost to start. After that, pricing is pay-per-image from $0.003 with no subscription.

Which AI image models can I use?

Renderful supports FLUX.1 [schnell], FLUX.1 [dev], ByteDance Seedream and more. You select a model with a single parameter and the request format stays the same.

Can I use the generated images commercially?

Yes — subject to each underlying model provider’s terms, images you generate can be used in commercial products, marketing and content.

How do I generate images with the API?

Send a POST request to /api/v1/generations with your API key, a model id (e.g. flux-dev) and a prompt. You receive a hosted image URL in the response.

How fast is AI image generation?

Fast models such as FLUX.1 [schnell] typically return an image in about 1–2 seconds. Higher-fidelity models take a few seconds more.

Start generating images for free

Sign up, grab your API key, and create your first image in under a minute.

Get started free

Looking to enhance video instead? Try the AI Video Upscaler.