About ModelMux
ModelMux is an AI image generation platform that generates, edits and transforms images with Google's Nano Banana and OpenAI's GPT Image models from one app, one API and your AI agents, for creators, marketers and developers who would rather pay per image than per month.
What ModelMux does
Text-to-image generation
Describe an image and generate it with Nano Banana 2 Lite, Nano Banana 2, Nano Banana Pro or GPT Image 2. Output goes up to 4K resolution in seven aspect ratios, from square social posts to 16:9 banners.
Image editing and image-to-image
Upload reference images and describe the change you want. Every model accepts references, so you can restyle a photo, place a product in a new scene or iterate on an earlier result.
Prompt gallery
Browse a curated gallery of AI image prompts with example images, filtered by model and category. Save the ones you like and open any prompt in the generator to make your own version.
Free AI image tools
Purpose-built generators make YouTube thumbnails, blog featured images, infographics, OG images, LinkedIn banners and X headers. Each tool composes for its platform's format, so the result is ready to upload.
API, MCP server and agent skill
Generate images from code with an HTTP API, from AI agents through the MCP server, or from Claude Code and Cursor with the agent skill. The same credits work in the app and everywhere else.
History and credit tracking
Every generation is saved to your history with its prompt, model and cost, and jobs keep running if you leave the page. The credits page shows your balance and every transaction, including refunds.
What makes ModelMux different
- 1
Four leading image models in one account
Nano Banana 2 Lite, Nano Banana 2 and Nano Banana Pro from Google sit beside GPT Image 2 from OpenAI. Pick the right model per image for speed, text rendering or detail, without a separate account or API key for each provider.
- 2
Pay per image, from 3 credits
An image costs 3 to 22 credits depending on model and resolution, and the exact cost is shown before you generate. That is up to 77% below the official API prices for the same models.
- 3
No subscription, credits never expire
Credit packs are one-time purchases, from 1,000 credits for $9.90 to 6,000 credits for $49.90. There is no monthly fee to cancel, and credits stay valid whether you create daily or once a quarter.
- 4
Failed generations are refunded automatically
If a provider errors out or times out, the job is marked failed in your history and its credits return to your balance. You only pay for images you actually receive.
- 5
Built for code and AI agents
Every account includes an HTTP API, an MCP server and an agent skill for Claude Code and Cursor. The public model catalog lists every model and its credit price as JSON with no API key, so agents always read current prices.
Who uses ModelMux
- Content creators and YouTubers making thumbnails, channel art and social visuals.
- Bloggers and content marketers generating featured images, infographics and OG images for every article.
- E-commerce and marketing teams placing product photos into new scenes and producing campaign visuals up to 4K.
- Designers and illustrators exploring concepts across several models before refining the best direction.
- Developers adding image generation to their own products through one HTTP API.
- AI agent builders letting Claude Code, Cursor or any MCP client create and edit images mid-workflow.
How ModelMux works
- 01
Sign up and buy credits
Create an account with email or Google, then buy a one-time credit pack. There is no subscription.
- 02
Describe the image
Write a prompt, start from one in the gallery or use a free tool. Add reference images to edit or transform an existing picture.
- 03
Choose model and size
Pick the model, resolution and aspect ratio. The exact credit cost is shown before you generate.
- 04
Generate and download
The image lands in your history, ready to download and use commercially. A failed job refunds its credits automatically.
Questions about your account or credits? Email support@modelmux.dev.
Key facts
- Company name
- ModelMux
- Type
- SaaS: AI image generation and editing platform
- Founded
- 2026
- Website
- modelmux.dev
- Core offering
- Text-to-image and image-to-image generation with Google Nano Banana and OpenAI GPT Image models, through a web app, HTTP API, MCP server and agent skill
- Pricing
- One-time credit packs, no subscription: 1,000 credits for $9.90, 2,200 credits for $19.90 or 6,000 credits for $49.90. Each image costs 3 to 22 credits. (Pricing)
- Contract terms
- No subscription or contract; credit packs are one-time payments and credits never expire
- Services
- Text-to-image generation, image editing with reference images, prompt gallery, free AI image tools, HTTP API, MCP server, agent skill for Claude Code and Cursor, commercial license
- Communication
- support@modelmux.dev
- Customers served
- Content creators, bloggers and marketers, e-commerce teams, designers, developers and AI agent builders
Frequently asked questions
What models are available?
Four: Nano Banana 2 Lite (Google's fastest model, just 3 credits), Nano Banana 2 (from 7 credits), Nano Banana Pro (Google's flagship, from 13 credits), and GPT Image 2 (OpenAI's latest, up to 4K, from 8 credits).
How much does an image cost?
Each generation costs credits based on the model and resolution — from 3 credits (about $0.03) for Nano Banana 2 Lite to 22 credits for a 4K Nano Banana Pro render. That's up to 77% below the official API prices for the same models, and you always see the exact cost before you generate.
Do credits expire? Is this a subscription?
No and no. Packs are one-time purchases — there's nothing to cancel and no monthly fee. Your credits stay valid forever, whether you create daily or once a quarter.
What happens if a generation fails?
You get your credits back automatically. If a provider errors out or times out, the job is marked failed in your history and the credits are refunded — you only pay for images you actually receive.
Can I use the images commercially?
Yes. Every image you generate is yours to use for any purpose — commercial projects, marketing materials, products, and more. A commercial license is included with every pack.
Can I generate images from code or AI agents?
Yes — every account includes an HTTP API, an MCP server, and agent skills for tools like Claude Code and Cursor. Your credits work the same in the app and via the API.