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Generate images

Frequently asked questions

What’s the fastest model for generating images?

Speed depends on the model’s architecture and how it’s optimized for the hardware it runs on. If you want quick results, models like google/imagen-4-fast and black-forest-labs/flux-schnell are built to return outputs fast, which is great for rapid iteration.

Which model gives the best balance of cost and quality?

Smaller or “fast” variants usually cost less to run. bytedance/seedream-4.5 and ideogram-ai/ideogram-v3-turbo are good picks if you want solid image quality without spending a lot.

What’s the difference between text-to-image and image-to-image?

Text-to-image models create a new image from scratch based on your text prompt. Image-to-image models take an existing image and use your prompt to change or build on it. Think of it as “paint something new” vs. “edit what’s already there.”

Which model makes the most realistic images?

bytedance/seedream-4.5 and ideogram-ai/ideogram-v3-turbo are great for realistic lighting, textures, and faces. They’re popular for lifelike portraits, product shots, and scenery.

Which model is best for artistic or stylistic work?

If you’re aiming for a specific look, black-forest-labs/flux-1.1-pro and black-forest-labs/flux-schnell give you more control over style, lighting, and composition. They’re good for illustrations, concept art, or anything with a creative twist.

Can I edit images with a text prompt?

Yes. Use text-guided editing models like black-forest-labs/flux-kontext-pro or bytedance/seedream-4.5 to add or change details in an existing image. For example, you can tell it to “add sunglasses” or “turn it into a painting.”

What resolution do these models support?

Most models output images between 512Ă—512 and 4K. Check the model card for the exact dimensions supported. Higher resolutions can cost more and take a bit longer to run.

How do I make consistent characters or scenes?

Use a reference image or a fixed seed. Models like black-forest-labs/flux-kontext-pro and ideogram-ai/ideogram-v3-turbo support both, so you can keep the same look across multiple runs.

Can I fine-tune a model with my own data?

Some models support fine-tuning. Look for the fine-tune tag on the model page or check the README for training details.

Can I host my own model on Replicate?

Yes. Push a model from GitHub with a replicate.yaml file. Once it’s built, it runs on the same infrastructure as other models.

Can I use these models for commercial work?

Check the “License” section on the model page. Some licenses allow commercial use, others don’t. Always make sure before using outputs in anything public or commercial.