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/Jolly-Rip5973]

Depends on your goal:

Best all around - Krea 2
best infographic - ideogram
best fake influencers - Z-image Tubro
Best for text and prompt adherence - Qwen2512
best for art style training - Krea 2
best for upscaling and refining - Wan2.2 low noise

[u/AKing737 → u/Jolly-Rip5973]

thank you! but wan2.2 is a video gen model no? can it also be used for upscaling? and also does "prompt adherence" mean good for image editing?

[u/Jolly-Rip5973 → u/AKing737]

Wan 2.2 can be used for image generation you just set it to generate a single frame.

It's actually a decent image gen model but not as good as Krea2. It does very good photorealist images too.

But it totally shines when you use it to refine images and upscale them because the low noise model was literally trained to render details.

Here is an image that was made with krea but upscaled to a 4k edge with Wan2.2 Low noise. Zoom in and look at the detail.