Claude Fable 5 vs GPT-5.6 Sol. Which AI Actually Wins?

Eric Siu compares Claude Fable 5 and GPT-5.6 Sol across marketing workflows: website building, thumbnail design, social clips, and Amazon audits. GPT Sol 5.6 wins on speed and completeness, though Fable 5 excels at design outputs.
Chapters
GPT Sol 5.6 is crazy when it comes to marketing. Now, I've been comparing it versus Fable 5 and have another video for that that you can check out. But I wanted to show you this video as it pertains to marketing. And I'm even going to do a comparison of how Sol 5.6 stacks up. I'm telling you right now, based on what I'm seeing, it is crazy. It is insane. And I would say it's even better than Fable 5 in many cases. So let's check it out. So check this out. Sol 5.6 made me this new website. So this is a single brand new website. I'm scrolling and it's created this new world of over here. Okay, so this new world over here— by the way, if you want to see the old website here, I'll just show you the old website real quick. So if you look at the old website, this is what the old website is. So this is managed revenue agents that know the client, right? And this is pretty good. It gets to the point, and you can see how it works over here. This is what we sell for, for clients, right? These managed revenue agents. And so this is not bad. And, you know, obviously this is generated via AI, but this version, now we're starting to get somewhere. And it probably took me like The prompt was very basic, and I'm going to show you the prompt in a moment, but it took me, what, 5 minutes to just get this going? And then maybe, I don't know, it looks like this worked for about 35 minutes or so, and I just— the prompt was actually very simple. So again, every signal still disconnected. You can see it basically made this world, and you can scroll through it. So I have a lot that I can play with now. Obviously, there's a lot more that I need to massage here because again, I only put one prompt here. And let me show you what that one prompt looks like. So let's go into GPT Sol 5.6. And let's take a look at this real quick. So this was my original prompt: install the skill and build singlebrain.com into a world. All I did was I took a tweet, okay? And then it did some work over here. It worked for about 15 minutes, and I'm using 5.6 Sol High. And you can see, okay, so I installed— so I need to install the Higgsfield CLI. So I handled all that, and I said, okay, I'm in. So after I handled that piece, it asked me for approval, and then it worked for about 60 minutes or so, and then it showed It showed me kind of the concept with this world. So here's the world concept, and there's probably a lot more that I can do with this, but this is pretty cool because the whole idea of having a single brain is that if you have a single brain as your main brain, but then your teams have brains as well, so you have a team brain, you could have an individual brain as well, and then it just goes down levels and levels, right? So this is pretty cool what it drew out here, these different world concepts. I didn't tell it to do this. It kind of just came up with this. It just assumed that With little direction, it came up with this, right? So then it worked for another 35 minutes or so. And then what I just showed you was the interactive world, the site that I showed you where it has that scrolling ability. And so that gives me something to play with. And I'm just going to continue to work with this. And I spent about 500, 467 credits, about 766,000 tokens over 34 minutes or so. And, you know, honestly, I'm curious to see what it'll look like if I move this over to Ultra. So that's that. And that's just one piece of— now I'm going to give you one more piece. So the next thing I did, I just made a video right before this one and I took the transcript from it and I said, hey, I want you to look at the thumbnails for my Leveling Up YouTube channel to determine our thumbnail identity. Give me 3 thumbnail and headline options based on this video transcript. So it works for 6 minutes and then it comes up with the ideas over here. So here are the ideas. And I said, okay, well design out the actual YouTube thumbnails. And so this is not bad. This is actually what my thumbnails look like on my YouTube channel. This is not bad. It's not a bad start for what this prompt is. I am using 5.6 Ultra here, which is the highest version that you can see. And then I, then I start giving it feedback, a little back and forth here. And then I say, reimagine number 2. Okay, great. So I keep working with it. And then we end up getting some new versions over here. So I refine it a little more. I'm like, hey, this is one that I actually want to use over here. Solve 5.6 versus Stable Diffusion 5. And then I have this other one over here on, hey, 5.6 might be cheaper. And then you have this one over here where it seems like it's locked down a little bit, right? So you kind of decide on the trade-offs here. But I actually think that this thumbnail is actually not that bad. And so then I realized something. I was like, hey, you know what? I don't think we're actually using the Fable 5 butterfly mark. Okay, so let's take a look at this. So Fable 5, okay, now we have the butterflies over here, so that actually makes sense now. Fable 5 design, okay, maybe we need to have the Claude logo right behind it. Maybe we should do that, right? So I don't know, like, do I want to use that or do I want to use this? Because that one's more recognizable, right? So I don't really know. Like, I think this one actually stands out. Versus this one? I don't know, but now I have different options. And so that's really good. Now the other thing is I had all these other loops running where I'm making this one for recruiting right now. So we have a recruiting operating system. This one's for building for about 2 days or so. And, you know, it looks like it's kind of held back right now, but I'm running it on 5.6 now and it's doing a better job of moving it along in terms of speccing out the plan more. So when you want to plan better, you want to plan deeper, you can, you can use this, right? So it's pretty good for building. A lot of these marketing loops, a lot of these like SEO, AEO loops that you might have. And what I would say is, as I continue on here, I want to show you that this Amazon growth proposal or these growth bets over here. So this is really good because the prompt originally was, hey, I want you to advise Amazon senior leadership on the 3 incremental growth initiatives that would create the most enterprise value over the next 3 years. Okay, so basically it does all this analysis and it looks like it worked for about 9 minutes here. Which is not that bad. And then versus, I mean, Fable Five actually took a little longer, which is okay, but the analysis was pretty good. It says, hey, you know, let's, I would invest in AWS AI Utility, Amazon Ads, and then ASCS, which is Amazon's new supply chain services. And you can see how much would it allocate to 70 to 80% AWS AI, 10 to 15% ads, and then 10 to 15% ASCS. Okay. Which is pretty good. And then it shows you the revenue for the different segments that they have. The different analysis, different opportunity ranking. So I'm showing you all this right now because I'm showing you that this does pretty good financial and business analysis. It did a pretty good job with the website on its first shot, basically. It did a really good job with the thumbnails ultimately. So that tells me I can move a lot faster when it comes to my thumbnails. And thumbnail packaging matters a lot, like a lot when it comes to YouTube. And you really got to understand your stuff. Now what I can do, I could just make that into a skill. In fact, I'm going to have you watch me Make that into a skill right now. This looks like something that'd be amazing for a skill. Let's make this into a skill and then tell me where you would put this so we can store it somewhere, right? So let's make it into a skill and then we'll go from there. But it did all the analysis kind of, you know, basically mostly end to end here, okay? And the reason I say end to end right now is because I'm going to show you the difference when you take a look at Fable 5. By the way, if you're enjoying this video on 5.6 for marketing, then you got to check out SingleBrain. So SingleBrain is where we build these managed revenue agents for companies, where we help them scale up their creatives a lot faster, scale up their outbound a lot faster, scale up their AEO a lot faster. Whatever it is exactly, whatever business problems that you have, go check out singlebrain.com with a B, and we'll see you on the other side. Okay, so here's the difference now. I ran the same exact prompt on my Claude. I said, I want you to look at the thumbnails, and I gave the transcript over here, literally the same exact prompt, okay? And it decided to use Higgs field here, which is fine. And then it uses— so here's the thing. It failed to download the leveling up channels page. That's going to affect things a lot. If you can't pull the initial base, you're not going to have a lot to work off of here, right? And so very well, it could be better, but I don't want to spend the time having to worry about the technical issues here. I don't want to spend time about having to think about how to go about connecting this and things like that, right? So there's some cool concepts here, but the other thing is it's eating up my Higgs field credits. I don't want it to eat up my Higgs field credits. The other one, it did it in one shot. It basically did it in one shot across the board, didn't ask me for all these other things. It's not taking my Higgs field credits either. So I would say by a mile, 5.6 wins when it comes to marketing on the YouTube thumbnails piece. Okay, let's say I move over to the singlebrain.com world building. Okay, here's the thing, it's still building right now. Okay, like I, I put the same prompt in here 3 hours ago, it's still building. Okay, it came up with these, this over here, but it's, it's struggling over and over and over again. It's struggling, it's struggling, it's struggling. Okay, here's a world. Okay, let's take a look at this. What does this look like? Okay, this is kind of cool. Okay, here's a brain. Okay, that's actually really cool. The single brain piece over here, right? Because we're talking about single brain. That's kind of cool. All right. This is my first time seeing this, by the way. So here's another one and it goes a little deeper. Okay, cool. So let's just make this like, I would say the designs here for the brain piece of it is objectively better, but In terms of finishing it off in one shot, SOL 5.6 did a better job. And so I like a lot of these. I'm just like, okay, well, damn. Okay, well, great, great. This is great. So, but now show me the preview, the interactive preview. But fact of the matter is, I would still give SOL 5.6 more credit here because it— I didn't have to do a lot of back and forth. I just wanted to figure it out and go from there. Okay. Now the other piece is this. So I did show you the Amazon Growth Initiatives audit over here. Okay. The audit that it did over here was it said, hey, it would actually focus on the grocery network that it has, which I think is a miss. That to me is— it's— that's not a very good audit because I actually would focus on AC, Amazon Supply Chain Services. That's what it really is at the end of the day. Now I'm going to show you one more thing. Okay, so I wanted it to find me social media clips from this webinar that I did yesterday. Okay, so I said, hey, I want you to clip this up for social media mid-form and short-form clips with strong hooks to start, mid-forms being 2 to 5 minutes and short-form being 60 to 90 seconds ideally, and in the proper dimensions. Also clip up for YouTube long-forms that are 10 minutes each with a montage of highlights from the episode and even some cliffhangers to, to that, that make people want to watch. Okay, so it's going back and forth, back and forth, done, try it again, done, try it again. Okay, like, where, where are we at with this? Like, what's going on? Where are we at? Why do we keep failing? Goal is to finish. Oh no, no, it's still running right now. 10 of 21 clips. Okay, great. So it's rendering right now, but it, you know, we had to keep doing this, this back and forth thing, which is really annoying to me. Okay. Conversely, if I show you What is happening over here on the GPT side of things, okay? It actually gives me the different ideas that it has, okay? So let's make sure this is the right prompt, okay? So, you know, the mid-form clips, blah, blah, blah, okay, great. It shows me, okay, here's the deliverables, okay? So it found for short form, here's an idea, here's an idea, here's an idea here for short form. Here's a mid-form one, here's a second mid-form one, here's a longer form one, and that's basically it. And here's the visual system and all that, the camera treatment, all that type of stuff, right? So I told it to just finish it off. Okay, so this one also didn't give me the edited videos as well. So this one, let's see if it finished it off. So let's see what it says for video folder. I'm looking at the videos. Okay, it actually looks like we do have some videos here. So, so Solve 5.6 actually finished this off, and I pulled from my marketing school that I recorded with Neil yesterday. So check this out, this is amazing. All right, so check this out. It looks like this is the first time watching this with you. Okay, so let's see if this is actually a good short-form video. I predict 50% Companies will need new leadership because the old management style won't work in the era of AI. That's exactly why I'm seeing 95% of so-called AI transformation initiatives fail. Most are bolting on AI pilots for functional tasks, but never touching the business core. And this is something that we're seeing quite a bit as well. So we should react to this. 50% of companies will need new leadership because the old management style— Okay, so what am I going to say about this? This is— it's a good start, but also like it's, it's a little choppy in the middle because we're not really giving the, the meat or the payoff here. Obviously there needs to be some audio treatment for this one too, because you can kind of hear a little bit of the, of the room. Try to look at another one here. So, all right, so this is number 2. Let's see how good this is. It works so well that it took double the length to do the framing than if we did it all manual. We hired a company that showed me a video of how in a factory they use technology to build a frame of your house, and then it just plunges in place and they're bringing it over in truckloads that way. Okay, so this is actually not bad. So if we have some good treatment here, there's some good B-roll here. This is actually a video that could do well because also this kind of, it's a broader topic too. So it's going to get more views and not necessarily going to drive conversions, but it will drive awareness ultimately. Because Neil here is talking about the, the, the home technology that he bought that ended up, they said it would take shorter time to build itself. It actually ended up taking longer. So it was actually a pain in the butt. So this is like, there's like a good payoff for this one. I'm going to do one more here. So give me one second. All right, let's see how good this one is over here. This is me again. The 3 ways that men go broke: laze, liquor, and leverage. My friend Charlie Munger said this. Yes, and it's really the last one that matters. It's leverage. He made up the first 2. Liquor is a liquor piece. It's just for fun. It's the leverage. So it's not saying you don't take out leverage, but there's like too much leverage and there's also bad leverage too. What Neil's also talking about too is leverage is an amplifier, right? Just like AI is an amplifier of intelligence. So if you have a good business model, leverage will amplify a good business model. But also amplify a bad business model too. Okay guys, I think we have something here. So there's already 2 immediate things here that I think we could skillify. There's the thumbnail piece, and then now I'm like, oh, finding moments with short form, mid form, long form. I feel like short form, finding the right moments, we're talking about taste, that problem is solved. Okay. The thumbnails piece, that is solved as well. The other things I showed you, building a better website, building a more interactive website, solved as well. And so your mileage may vary, But as of this video, when it comes to early marketing, 5.6 is the winner. And nothing— I don't like Fable 5. I love Fable 5, by the way. There's a lot you can do with it. There's some cool stuff that you saw with it, but I choose ChatGPT 5.6 with some of the marketing stuff that we're talking about early days.










