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Z-Image: Powerful and highly efficient image generation model with 6B parameters

(github.com)
396 points doener | 3 comments | 30 Nov 25 11:36 UTC | HN request time: 0.002s | source
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muglug ◴[06 Dec 25 17:59 UTC] No.46175232[source]▶
The [demo PDF](https://github.com/Tongyi-MAI/Z-Image/blob/main/assets/Z-Ima...) has ~50 photos of attractive young women sitting/standing alone, and exactly two photos featuring young attractive men on their own.

It's incredibly clear who the devs assume the target market is.

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1. AuryGlenz ◴[06 Dec 25 21:10 UTC] No.46176614[source]▶
Considering how gaga r/stablediffusion is about it, they weren’t wrong. Apparently Flux 2 is dead in the water even though the knowledge it has contained in the model is way, way higher than Z-Image (unsurprisingly).
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2. BoorishBears ◴[06 Dec 25 22:45 UTC] No.46177281[source]▶
Flux 2[dev] is awful.

Z-Image is getting traction because it fits on their tiny GPUs and does porn sure, but even with more compute Flux 2[dev] has no place.

Weak world knowledge, worse licensing, and it ruins the #1 benefit of a larger LLM backbone with post-training for JSON prompts.

LLMs already understand JSON, so additional training for JSON feels like a cheaper way to juice prompt adherence than more robust post-training.

And honestly even "full fat" Flux 2 has no great spot: Nano Banana Pro is better if you need strong editing, Seedream 4.5 is better if you need strong generation.

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3. GaggiX ◴[07 Dec 25 07:02 UTC] No.46179788[source]▶
I didn't even know seedream 4.5 has been released, things move fast, I have used seedream 4 a lot through their API.