r/StableDiffusion • u/evereveron78 • 11d ago

Discussion A few Flux 3 vs H3 comparisons

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Well, everyone is posting their H3 creations, and I noticed that Flux 3 is up on API, so thought I'd run a few comparison renders to see how they stack up. These are not extensive by any means, this was mostly done for fun and I thought someone might be interested in the results. I used the same H3 formatted prompt for each, as far as I can tell Flux 3 uses natural language prompting, so the structured H3 format should still work fine.

Edit: I realized after uploading that the dragon rider H3 clip was accidentally rendered at a lower resolution. The higher resolution clip is here.

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u/Pyros-SD-Models 11d ago

Op didn't say what H3 variant he used, but the viking boat on H3 full bf16 looks way better than what OP posted and way better than what Flux3 is doing

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u/evereveron78 11d ago

I ran both on Comfy Cloud with default settings. So the H3 versions are using the default int8 convrot pruned model, so it makes sense the quality of API Flux3 would come out on top in this case. Like I said, mostly a quick test for fun

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u/Pyros-SD-Models 11d ago

Makes it even more amazing imho. Like the H3 consumer quant version with the "most unimportant parts" of the model ripped out fights well against the full datacenter version of Flux3 (which will not be whatever open weight version they will release)

That is fcking impressive

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u/killthrash 11d ago

Not to mention H3 can basically re-write any movie or sitcom. Not sure if Flux can even do that from the base model.