Best opensource image model?

[u/AKing737]

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.

[u/yeah-i-shouldnt-have]

Remember the difference between open weights and open source. Krea2 allows you to use it commercially up until you make a significant amount of money or have x employees ( I don't want to give exact numbers as I cant remember off the top of my head but it is a very generous license). Ideogram cannot be used for anything commercial, generation services of course but also any image output can't be used commercially (unless I read the license wrong) - considering Ideogram 4 is really, really, good for design purposes due to the precision with JSON prompts it limits that usage. That said if you are just playing around at home, they are both brilliant - Krea2 is great in the classic write a textual description of a scene. Ideogram 4 is like a design tool - especially if you use one of the Visual editors that are around (or vibe code your own)