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Sonnet 5.5 VS Opus 5.5 VS GPT Astra 6: Who Wins? artwork

Sonnet 5.5 VS Opus 5.5 VS GPT Astra 6: Who Wins?

AI News Today | Julian Goldie Podcast

September 30, 2026

Sonnet 5.5 VS Opus 5.5 VS GPT Astra 6: Who Wins?

Speakers Julian Goldie

TopicsMarketingBusiness

Julian Goldie (0:00)

All right, so GPT-6 Astra versus Sony 5.5 versus Opus 5.5. Who wins? I've been comparing them side by side, as you can see right here. We're going to take a look at these and we'll see how they perform. So you can see Sony 5.5, we've got Opus 5.5, GPT-6 Astra. So if we pull these up, for example, this is from GPT-6 Astra, as you can see here. The colors, the lightning, the 3D style of it, everything is pretty nice. Pretty nice version right here. Now, there is something that Sony 5.5 is actually one on straight away, but I'll come on to that in a minute. Now, if we have a look, it is a little bit buggy when we look at the details, for example, like the water down here just looks a little bit weird. If we pull up, for example, this is Opus 5.5, as you can see, it's a little bit buggy when you zoom out, as you can see here, right? The lighting is not that nice. At the same time, it's pretty amazing that you can create this, but the lighting and everything else, not that nice. Now, this is from Sonnet 5.5, and it looks really good, as you can see. There is still a little bit buggy in parts, but it looks nice. It feels good when you look at it. And they have done a great job. So let's have a look here, and we'll compare them side by side. Now, you can actually, if you want this full guide, it's inside the airbrush volume, if you want to see the prompts and everything else that we use to generate this. As you can see side by side, if you compare Sony 5.5 versus Astra, which one would you go for? Personally, for me, it's tough. I would almost say they're a draw, but I'd probably go with GPT-6 Astra. I think it actually looks the best side by side right there. So, you know, if you look at Sony 5.5, probably create the most dramatic version. Opus 5.5, super cinematic, but GPT-6 Astra created something really nice right there. And you can see the prompt down here. You can get it inside the airbrush volume notes if you want to get it. Now, one thing that we'll see with each of these is that when we were comparing them, Sonic 5.5 was way faster than GPT-6 Astra. So GPT-6 Astra created a better version, but it took about 14 minutes. Whereas if we look at Sonic 5.5, Sonic 5.5 was done in just nine minutes, nine minutes only, which is pretty amazing when you think about it. So round number two. And by the way, it is so much fun creating this stuff, like the quality of these outputs is just unbelievable. So you can see here that we actually created a 3D website with each of these. And this is kind of like a 3D product website, as you can see. So Sonic 5.5 on the left hand side. And then we have Opus 5.5 on the right hand side. The, I mean, both of them look super nice. Like the quality is really, really good. I did notice on some of the details when I was checking this out, and I'll come on to that in a second. Opus 5.5 did something interesting and special. And then if we have a look, for example, Sony 5.5 versus Astra here, the quality from Astra was very nice, to be fair. Very nice. Now we can open each of these up. So let's take a look and see which one we like the most. So starting with Sony 5.5, so you can see here, looks super nice. Like just the way it moves is just interesting. The way that it's designed, it looks clean. I think, hopefully, we are out of the times of AI slop, right? And we're in a world where design has just got so much better with these models, particularly with Sony. So if we have a look here, we can also change the colors, which is a nice little detail as you scroll down here, but like the fonts and everything. And we can even move this around, as you can see here. So we can move the product around, and then it moves around as we scroll as well, which is really, really cool. If we have a look at this is Opus 5.5, the one thing I'll say here is like, I don't really like the design of this, as you can see, but I mean, that's a tiny little thing. I didn't ask it to create an image. It is kind of cut off a little bit down there, as you can see, but the colors are nice. I mean, that looks nice, isn't it? The fonts and everything else as well. Which one do I prefer the most so far? I mean, these are really, really similar. But as we were talking about before, like I would say, Sonic created a much nicer output than Opus, just when you look at the details here. So you see how, for example, the way that this is kind of cut off there and it doesn't quite fit, but a tiny little detail. Honestly, they both did a very good job there. And then if we have a look at Astra, I quite like the font that Astra is gone with and the colors here as well. It's quite sleek and sophisticated. You can see as well, like it's a bit more animated and interesting when we're having a look at Astra 6 here as well. So as we scroll down, there's only two colors to choose from and they're not that nice, but the design of the website is nice. It just feels a little bit basic and retro though. That's the only thing that I would say with the colors, compared to, for example, how rich this feels when you're going through the site. You know, and being able to change the colors and everything else. I would genuinely say that Sonic 5.5 won that one, but it's close, like undeniably close. And this is something you can build, you know, if you're trying to create great websites, all of these models do a great job. A GP6 Astro was actually very fast on this one as well, so it only took about four minutes, whereas Sonic 5.5 took six minutes and Opus 5.5, which seems to be slow in general, much slower than Sonic 5.5 overall. And we'll come on to the benchmarks a bit later as well. But that's kind of the boring stuff that I don't really like talking about, to be honest. So as we keep going now and we scroll down here, what these models are very, very good at is also creating beautiful motion design, right? So even, for example, if you look at this whole page, this was fully designed with Sonic 5.5. And as we scroll down here and we have a look at this one, for example, the motion design videos it creates are just beautiful.

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