Do I need an image generation API for my app, or can I just use a hosted model?

You don’t need an image generation API specifically. In many cases, you can use a hosted model directly. The right choice depends on what your app needs.

Use a hosted model if you want:

• Quick setup
• Minimal infrastructure work
• Managed scaling and uptime
• Access to a web UI or a simple endpoint for prompt-to-image generation
• To avoid maintaining GPUs, queues, or model deployment

Use an image generation API if you need:

• Programmatic integration into your app/backend
• High-volume or automated generation
• Control over parameters, retries, rate limits, and billing
• Authentication, logging, and usage tracking
• Easier integration with user accounts, workflows, or batch jobs

Common rule of thumb

• Prototype / internal use: hosted model is often enough
• Production app: an API is usually better
• Heavy customization or self-hosting requirements: consider running the model yourself

One important distinction

“Hosted model” can mean two different things:

1. A model hosted by a provider with an API — this is still an API, just managed for you.
2. A web app / playground where you manually generate images — this usually isn’t enough if your app needs automated generation.

Bottom line

If your app needs to generate images automatically for users, you’ll probably want an API. If you’re just testing ideas or generating images manually, a hosted model/UI may be enough.

If you want, I can help you choose based on your app type, expected traffic, and budget.