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FLUX1.1 [pro] – New SotA text-to-image model from Black Forest Labs (replicate.com)
172 points by fagerhult 11 hours ago | hide | past | favorite | 113 comments






Flux is so frustrating to me. Really good prompt adherence, strong ability to keep track of multiple parts of a scene, it's technically very impressive. However it seems to have had no training on art-art. I can't get it to generate even something that looks like Degas, for instance. And, I can't even fine tune a painterly art style of any sort into Flux dev. I get that there was working, living artist backlash at SD and I can therefore imagine that the BFL team has decided not to train on art, but, it's a real loss. Both in terms of human knowledge of, say composition, emotion, and so on, but also for style diversity.

For goodness sake, the MET in New York has a massive trove of open CC0 type licensed art. Dear BFL, please ease up a bit on this, and add some art-art to your models, they will be better as a result.


I've had a similar experience, incredible at generating a very specific style of image, but not great at generating anything with a specific style.

I suspect we'll see the answer to this is LoRAs. Two examples that stick out are:

- Flux Tarot v1 [0]

- Flux Amateur Photography [1]

Both of these do a great job of combining all the benefits of Flux with custom styles that seem to work quite well.

[0] https://huggingface.co/multimodalart/flux-tarot-v1 [1] https://civitai.com/models/652699?modelVersionId=756149


I like those, and there's an electroshock lora that's just awesome out there. That said, Tarot and others like it are "illustrator" type styles with extra juice. I have not successfully trained a LoRa for any painting style, Flux does not seem to know about painting.

I'm curious to give this a go. I've been training a lot of LoRAs for FLUX dev recently (purely for fun). I'm sure there must be a way to get this working.

Here are a few I've recently trained: https://civitai.com/user/dvyio


This looks really good! What is your process to get this kind of high quality LoRAs?

Thank you!

A reasonable amount of training images (50 or so), and then I train for 2,000-ish steps for a new style.

Many of them work well with Flux, particularly if they're illustration-based. Some don't seem to work at all, so I didn't upload those!


How long does this take, and on what equipment? It's amazing to me that you can do this from just 50 images, I would have thought tens of thousands.

It's very impressive. I aim for around 50 images if I'm training a style, but only 10 to 20 if training a concept (like an object or a face).

I have a MacBook Air so I train using the various API providers.

For training a style, I use Replicate: https://replicate.com/ostris/flux-dev-lora-trainer/train

For training a concept/person, I use fal: https://fal.ai/models/fal-ai/flux-lora-fast-training

With fal, you can train a concept in around 2 minutes and only pay $2. Incredibly cheap. (You could also use it for training a style if you wanted to. I just found I seem to get slightly better results using Replicate's trainer for a style.)


Wow, fantastic, thanks! I thought it would be much, much more expensive than this. Thanks for the info!


@davidbarker -- please do, that sounds awesome! I did not have good results.

It's trickier than I thought it would be.

Here are a few in Degar style I made after training for 2,500 steps. I'd love to hear what you think of them. To my (untrained) eye, they seem a little too defined, perhaps?

https://imgur.com/a/sqsQLPg


>However it seems to have had no training on art-art. I can't get it to generate even something that looks like Degas, for instance

It feels like they just removed names from the datasets to make it worse at recreating famous people and artists.


No, they absolutely did not just do that in this case, although that was the SD plan. If you prompt for "painterly, oil painting, thick brush strokes, impressionistic oil painting style" to flux, you will get ... anime-ish renderings.

I’ve had the same problem with photography styles, even though the photographer I’m going for is Prokudin-Gorskii who used emulsion plates in the 1910s and the entire Library of Congress collection is in the public domain. I’m curious how they even managed to remove them from the training data since the entire LoC is such an easy dataset to access.

Yes, exactly. I think they purposely did not train on stuff like this. I'd bet that you could do a LoRa of Prokudin-Gorskii though; there's a lot of photographic content in flux's training set.

i'm fairly confident they did a broad FirstName LastName removal.

And I can't imagine there's a real copyright (or ethical) issue with including artwork in the public domain because the artist died over a century ago.

>but, it's a real loss. Both in terms of human knowledge of, say composition, emotion, and so on, but also for style diversity

But that real art still exists, and can still be found, so what exactly is the loss here?


We may differ on our take about the usefulness of diffusion models, but I'd say it's a loss in that many of the visuals humans will see in the next ten years are going to be generated by these models, and I for one wish they weren't just trained on weeb shit.

Just think that before 1995 (and in reality, decades later than that) most of the world would never have access to 99% of the worlds art.

And between 1995 and 2022 the amount of Art produced surpasses the cumulative output of all other periods of human history.


... And between 2022 and 2025 the amount of imagery generated will drive the percent of Art created to roughly 0% of all imagery.

You'll still be able to ask a person to create art in a specific style if you'd like.

I wonder if you can use Flux to generate the base image then img2img on SD1.4 to impart artistic style?

That's what a refiner is for in auto1111. Taking an image the last 10% and touching it up with an alternative model.

I actually use flux to generate image for purposes of adherence, then pull it in as a canny/depth controlnet with more established models like realvis, unstableXL, etc.


That is an interesting idea, I somehow hadn't thought of using flux in a chain like that, thanks!

Yes, that is my current workflow as well.

I think that's part of what makes FLUX.1 so good: the content it's trained on is very similar.

Diversity is a double-edged sword. It's a desirable feature where you want it, and an undesirable feature everywhere else. If you want an impressionist painting, then it's good to have Monet and Degas in the training corpus. On the other hand, if you want a photograph of water lilies, then it's good to keep Monet out of the training data.


DALL-E3 doesn't struggle with this. It's just opinions. There's no technical limitation. They chose to weaken the model in this regard.

Nonsense. FLUX.1-dev is famous for its consistency, prompt adherence, etc.; and it fits on a consumer GPU. That has to come with compromises. You can call any optimization weakness: that's the nature of compromise.

Pretty smart model. Here's one I made: https://replicate.com/p/6ez0x8xqvsrga0cjadg8m7bah0

One thing that makes FLUX so special is the prompt understanding. I now gave FLUX 1.1 a prompt "Closeup of a doll house built to resemble a famous room in the TV show Friends" and it gave me one with the sign "Central Perk". I never prompted for the text "Central Perk". A Redditor also discovered that it has an associative understanding of emotions. For example "Rose of passion" and it may draw a flower that is burning, because passion is fiery.

This is miles ahead of most other image generation models available today.


Yet, it doesn't seem to know how a Tektronix 4010 actually looks like... ;)

I had similar issues trying to paint a "I cast non-magic missile" meme with a fantasy wizard using a missile launcher. No model out there (I've tried SD, SDXL, FLUX.1dev and now this FLUX1.1pro) knows how a missile launcher looks like (neither as a generic term, nor any specific systems) and even has no clue how it's held, so they all draw really weird contraptions.


Isn't it because the shoulder launched weapon is usually called rocket launcher, rpg or bazooka? Never heard it referred as misille launcher.

I've tried all of those and then some (e.g. "ATGM"), plus various specific names (like "FGM-148 Javelin", "M1 Bazooka", or "RPG-7", which are all quite iconic and well-recognized so I thought some of those may appear in training data) - all no bueno. Models are simply unaware about such devices, best of their "guesses" is that it's a weapon, so they draw something rifle- or pistol-shaped.

And, sure, that's what LoRAs are for. If I can figure out how to train one for FLUX, in a way that would actually produce something meaningful (my pitiful attempts at SDXL LoRA training were... less that stellar, and FLUX is quite different from everything). Although that's probably not worth it for making a meme picture...



That is astoundingly good adherence to the description. I already liked and was impressed by Flux1 but that is perhaps the most impressive image generation I've ever seen.

Is it going be able to go head-to-head against Midjourney?

MJ is by far the worst model for complex prompt ADHERENCE, though it has excellent compositional quality.

Comparisons of similar prompt using Midjourney 6.1

https://imgur.com/a/WBnPl7I

Also, flux (schnell, dev) can be run on your local machine.

If you really want to use a paid service, Ideogram is probably the best one out there that balances quality with adherence. DALL-E 3 also has good adherence as well though the quality can sometimes be iffy, and it's very puritanical in terms of censorship.


It's quite good at following a detailed paragraph long description of an scene, which is a double edged sword. A lot of the fun for me with early text to image models was underspecifying an image and then enjoying how the model "invents" it. "Steampunk spaceship", "communist bear", "glass city".

flux is amazing, but I find it requires a very literal description, which pushes the "creative work" back to the text itself. Which can certainly be a good thing, just a bit less gratifying to non visual types like myself. :)

I wonder, only somewhat jokingly, if one could make text generators which "imagine" detailed fantastical scenes, suitable for feeding to a text to image model.


That's what Fooocus is - it allows you to specify a "text expander" LLM that sits in between the input prompt and the diffusion model.

https://github.com/lllyasviel/Fooocus


Prompt enhancement is now a standard feature in many image generation tools.

I've gone from counting fingers on a hand to keys on a keyboard

I really enjoy its service. It's promising for UI design. My advocacy website pages' UI design was bootstrapped using it. It is quite good for developers without much design ability.

Ironically, I am afraid to type the website out and will keep it unknown here. My account could be suspended because of this. It had already reached -1 karma. It's better to keep my account alive.



Ah, that was one short gravy train even by modern tech company standards. Really wish the space was more competitive and open so it wouldn't just be one company at the top locking their models behind APIs.

I'm running Asahi Linux on a 32GB M1 Pro. Any chance of being able to run text-to-image models locally? I've had some success with LLMs, but only the smaller models. No idea where to start with images, everything seems geared towards msft+nvda.


"Draw Things" is a native Mac app for text to image. It's a a lot more advanced than DiffusionBee, it will download the models for you, and it's free. It's also available for iOS. (!)

Draw things is neat but it's so damn slow compared to other tools (e.g. invokeai), I'm not sure why it takes so long to generate images with any model?

On the same Mac hardware, Draw Things should be the fastest on models such as SDXL / FLUX.1 against other tools based on PyTorch (I stopped benchmarking SD v1.5 results for a while so that might regress a little bit here or there).

It's not any slower than invokeai for me. Maybe check the settings, and try using the GPU instead of CoreML.

DiffusionBee will let you do this quite easily.

edit: nevermind, it's a macos app


Is DiffusionBee still in development? I had stopped using it because it seemed like the dev interest had stalled.

It doesn’t get piano keyboards right, but it’s the first image generator I’ve tried that sometimes get “someone playing accordion” mostly right.

When I ask for a man playing accordion, it’s usually a somewhat flawed piano accordion, but If I ask for a woman playing accordion, it’s usually a button accordion. I’ve also seen a few that are half-button, half-piano monstrosities.

Also, if I ask for “someone playing accordion”, it’s always a woman.


Periodic data is always hard for generative image systems - particularly if that "cycle" window is relatively large (as would be the case for octaves of a piano).

Yeah, it's my informal test to see if a new model has made any progress on that.

"state of the art" has become such tired marketing jargon.

"our most advanced and efficient model yet"

"a significant step forward in our mission to empower creators"

I get it, you can't sell things if you don't market them, and you can't make a living making things if you don't sell them, but it's exhausting.


Flux is state of the art. You can see an ELO-scored leaderboard here:

https://huggingface.co/spaces/ArtificialAnalysis/Text-to-Ima...


Flux genuinely is the best model I’ve tried though. If there is a better one I’d love to know.

Have you tried Ideogram v2?

Have you run Ideogram offline?

Have you run Flux Pro offline?

No, only a dozen Flux Dev models different distillations, quantizations, and fine-tunes with LORAs.

But you keep pretending that close source AI is a sustainable comparison.


Flux Pro (v1 and v1.1) is a close source model.

It is state of the art. And it's not like the art has stagnated.

Agreed, but the flux dev model is easily the best model out there in terms of overall prompt adherence that can also be run locally.

Some comparisons against DALL-E 3.

https://mordenstar.com/blog/flux-comparisons


- How do copywriters greet each other in the morning?

- Take your morning to the next level!


The official blog post justifies the marketing copy a bit more with metrics.

The point is that the metrics say the thing, this stuff doesn't say actually anything.

What does "state of the art" mean? That it's using the latest "cutting edge" model technology?

When Apple releases a new iPhone Pro Max, it's "state of the art". When they release a new iPhone SE, there's an argument to be made that it's not because it uses 2 year old chips. But what would it even mean for BFL to release a model which wasn't "state of the art"

> our most advanced and efficient model yet

Yes, likewise, this is how technology companies work. They release something and then the next thing they release is more advanced.

> a significant step forward in our mission to empower creators

Going from 12 seconds to 4 seconds is a significant speed boost, but does it move the needle on their mission to empower creators? These are their words, not mine, it's a technical achievement and impressive incremental progress, but are there users out there who are more empowered by this? significantly more empowered!?


Holy shit the level of pedantry. State of the art in this context means it out performs all other models to date on standard evaluations, which is precisely what it does.

Did you miss the first flux release? Black forest labs aren't screwing around. The team consists of many of the _actual_ originators of Stable Diffusion's research (which was effectively co-opted by Emad Mostaque who is likely a sociopath).


> State of the art in this context means it out performs all other models to date on standard evaluations, which is precisely what it does.

That's not what "state of the art" means, and if it did it would still be hollow marketing jargon, because there are specific and meaningful ways to say that FLUX1.1 [pro] outperforms all competitors (and they do say so, later in the press release)

Your confusion about what "state of the art" means is exactly why marketers still use the phrase even though it has been overused and worn out since at least the 1980's. State of the art means something is "new", and that it is the "latest development", and that it incorporates "cutting edge" technology. The implication is that new is better, and that the "state of the art" is an improvement over what came before. (And to be clear, that's often true! Including in this case!) But that's not what the phrase actually means, it just means that something is new. And every press release is about something new.

FLUX1.1 [pro] would be state of the art even if it was worse than the previous version. Stable Diffusion 2.0 was state of the art when it was released.


I said in this context for a reason. That's how state of the art has been used (in papers, not copy) with regard to deep learning since well before DALL-E 1. I maintain that you're being pedantic about appropriating a term of art to mean something else. Everyone else here knows what the meaning is in context. Just not you.

I'm worried about what happens when more people find out about Ideogram.

There are a lot of things that don't appear in ELO scores. For one, they will not reflect that you cannot prompt women's faces in Flux. We can only speculate why.


What do you mean? FLUX.1 prompts women or women faces just fine? Do you mean the skin texture is unrealistic or some other artifacts?

Flux tends to gravitate towards a single face archetype for both sexes. For women it's a narrow face with a very slightly cleft chin. Men almost always appear with a very short cut beard or stubble. r/stablediffusion calls it the "flux face", and there are several LoRAs that aim to steer the model away from them.

Flux will not adhere to your detailed description of a woman's face nearly as well as it does for a man, and it doesn't adhere to text descriptions of faces well in general. This is not a technical limitation, this was a choice in the captioning of the model's dataset and maybe other more sophisticated decisions like loss. It exhibits similar flaws with its representation of male versus female celebrities; it also exhibits this flaw when you use language that describes male celebrities versus female celebrities appearances.

what they really mean is that it's not useful for generating lewd imagery of women. It was likely nerfed in this regard on purpose because BFL didn't want to be associated with that (however legal it may be).

I'm not sure why you're being downvoted because I think this is a misconception that's worth clearing up. There is no aspect of what I'm doing that is lewd or lewd adjacent. I just want control of a character's face for making art for an open source game. While I do not totally understand what specific decisions Flux made that would make their model weak in the regard of specifying the appearance of someone's face, one thing is clear: the humanities people are right, this is like a great example of how censorship and Big Prude has impacted artmaking.

It is actually making it harder to use the technology to represent women characters, which is so ironic. That said, I could just lEaRn tO dRaW or pAy aN aRtIsT right? The discourse around this is so shitty.


How locked down is it? My problem with a lot of these is I like to make really ridiculous meme type images, but I run into walls for dumb reasons. Like if I want to make something thats "copyrighted" like a mix of certain characters from one franchise or whatever, I cannot sometimes I get told that the model cannot generate copyrighted content, even though courts ruled that AI generated stuff cannot be copyrighted either way...

I feel like AI should just be treated as fair use as long as its not 100% blatantly a literal clone of the original work.


> How locked down is it? ... I get told that the model cannot generate copyrighted... AI should just be treated as fair use

Ideogram and Flux both have their own broad set of limitations that are non-technical and unpublished. IMO they are not really motivated by legal concerns, other than the lack of transparency itself.

So maybe the issue is that transparency, and that the hazy legal climate means no transparency. You can't go anywhere and see the detailed list of dataset collection and captioning opinions for proprietary models. Open Model Initiative, trying to make a model, did publish their opinions, and they're not getting sued anytime soon. However, their opinions are an endless source of conflict.


It's perfectly happy to make an imperial storm trooper riding a dragon, for what it's worth

I've been using Venice.ai which offers afaik the most uncensored service currently available, outside of running your own instances. No problem with prompts that include copyrighted terms.

I won't pay for a model, but that cake image looks dang good.

I tried using schnell, it won't fit in a 16gb GPU, and I couldn't get it to run on CPU.

I've been playing with Flux.Dev and such a big step forward from Stable Diffusion and all the other Generative AIs that could run on consumer GPUs.

I just tried this Flux1.1 pro page (prompt: "A sad Macintosh user who is upset because his computer can't play games") and was very impressed by the detail and "understanding" this model has.


Is there a good site that compares text-to-image models - showing a bunch of examples of text w/ output on each model?

Are there any projects that allow for easy setup and hosting Flux locally? Similar to SD projects like InvokeAI or a1111

The answer is it really depends on your hardware, but the nice thing is that you can split out the text encoder when using ComfyUI. On a 24gb VRAM card I can run the Q8_0 GGUF version of flux-dev with the T5 FP16 text encoder. The Q8_0 gguf version in particular has very little visual difference from the original fp16 models. A 1024x1024 image takes about 15 seconds to generate.



Invoke is model agnostic, and supports Flux, including quantized versions.

Flux is more weird than old SD projects since Flux is extremely resource dependant and won't run on most hardware.

Doesn't take a lot of effort to get Flux dev/schnell to run on 3090s unquantized, but I agree that 24gb is the consumer GPU memory limit and there are many with less than that. Flux runs great on modern Mac hardware as well, if you have at least 32gb of unified memory.

I'm running Flux dev fine on a 3080 10GB, unquantised, on windows the nvidia drivers have a function to let it spill over into system ram. It runs a little slower, but it's not a deal-breaker unlike nvidia's pricing and power requirements at the moment

What are you using to run it? When I run Flux Dev in Windows using comfy on a 4090 (24 GB) sometimes it all crashes because it runs out of VRAM when I'm doing too much other stuff.

Not a good reference for windows -- I use HuggingFace APIs on cog/docker deployments in Linux. I needed to use `PYTORCH_NO_CUDA_MEMORY_CACHING=1 -e PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True` envvars to eliminate memory errors on the 3090s. When I run on the Mac there is enough memory not to require shenanigans. Runs approximately as fast as the 3090s but the 3090s heat my basement and the Mac heats my face.

Really? I tried using it in ComfyUI on my Mac Studio, failed, went searching for answers and all I could find said that something something fp8 can't run on a Mac, so I moved on.

If you're looking for a prebuilt "no tinkering" solution https://diffusionbee.com/ is an open source app (Github link at the bottom of the page if you want to see the code) which has a built in button to import Flux models at the bottom of the home screen.

I usually don't want to comment on these, but: DiffusionBee's repo https://github.com/divamgupta/diffusionbee-stable-diffusion-... don't have any updates for 9 months except regular binary releases. There is no source code available for their recent builds. I think it is a bit unfair to say it is open-source app at this point given you are using a binary probably far different from the repo.

Thanks, I'll take a look.

I should have qualified that I run Flux.1 dev and schnell on a Mac via HuggingFace and pytorch, and am not knowledgeable about ComfyUI support for these models. The code required is pretty tiny though.

People have Flux running on pretty much everything at this point, assuming you are comfortable waiting 3+ minutes for a 512x512 image.

I managed to get it running on an old computer with a 2060 Super, taking ~1.5 minutes per image gen. People are generating on a 1080.


The GGUF quantisations do run on most recent hardware, albeit at increasingly concerning quality tradeoffs.

I haven't noticed any quality degradation with the 8-bit GGUF for Flux Dev, but I'm sure the smaller quantizations perform worse.

Using comfyui with the official flux workflow is easy and works nicely. comfy can also be used via API.

DrawThings on Mac

Far more interesting will be when pony diffusion V7 launches.

No one in the image space wants to admit it, but well over half of your user base wants to generate hardcore NSFW with your models and they mostly don’t care about any other capabilities.


Sorry to be a noob, but how does this relate to fastflux.ai which seems to work great and creates an image in less than a second? Is this a new model on a slower host?

The generated images look impressive of course but I can't help but be mildly amused by the fact that the prompt for the second example image insists strongly that the image should say 1.1:

> ... photo with the text "FLUX 1.1 [Pro]", ..., must say "1.1", ...

...And of course, it does not.


Wild, ideogram got it in one for free:

https://ideogram.ai/g/glE5qDz-SQyVVv2hdo0vLg/0


I asked for a simple scene and it drew in the exact same AI girl that every text-to-image model wants to draw, same face, same hair, so generic that a Google reverse image search pulls up thousands of the exact same AI girl. No variety of output at all.

In case you want to try it out without hassling with the API, I've set up a free tool for it so you can try it out on WhatsApp: https://instatools.ai/products/fluxprovisions



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