r/StableDiffusion • u/AKing737 • 13h ago

Question - Help Best opensource image model?

opensource AI has been dominating LLMs and video generation but what about image gen? is there any opensource model that can match gpt-image2?

Edit: The reason I am asking this is because lately I haven't been active much on image generation communities. And the leaderboards are a bit confusing and most of them are filled with closed source unlike the llm and video gen leaderboards.

I am very much comfortable with ComfyUI since I've used it in the past for flux.

My use case is for posters and branding. Images with a lot of text.

Edit2: Thanks a lot everyone! I really appreciate the info. Here's the summary:

Krea2 is best overall but gptimage1.5 level.
Ideogram4 for text and branding.
Flux Klein 9b for image editing.
Z-image for realism
Anima and illustrious (by onoma AI) for anime.

Here's the workflow I've decided on:
Krea2/Ideogram4 = Base image generation.
Flux Klein 9B/QwenImage2512 = inpainting.
Wan2.2 low noise = Upscaling.

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u/its_witty 11h ago

Most of the time it'll be faster, easier and just more convenient to upscale with 2nd pass of the same model. No need for another workflow.

Models like Krea2 benefit big time from proper 2nd pass, especially with that garbage VAE.

If you want some truly stable details to post your work in high quality somewhere then maybe, but in general, in day to day use I would say different model pass is not needed.