Claude Mythos is Finally Here.

Wow, Claude Mythos is finally here. Or is it really? We've got Fable 5 and we've got Mythos 5. And if you go to the very bottom of this page, you see that Claude Fable 5 is available everywhere today, while Mythos 5 is restricted to Glasswing Partners only. Pricing for both models is $10 per million input tokens and $50 per million output tokens, which is double the cost of Opus. And I know you guys already complained that Opus is super expensive, but I mean really, if this is as capable as we think it is, in the grand scheme of things, this is not that expensive. They also expect Fable demand to be very high. Obviously, yeah, because they've been teasing it up and, you know, hyping it up for a long time now. But what you'll notice here is right now from today until June 22nd, Fable 5 is included on Pro Max, Team, and Seatbased Enterprise plans at no extra cost. So, just part of your subscription. But on June 23rd, they will be removing Fable 5 from those plans. So, if you want to use it, you're going to have to do usage credits, which will be token based. After this point, when sufficient capacity allows us to do so, we aim to restore Fable 5 as a standard part of subscription plans, we intend to do this as quickly as we can. I mean, they just filed to go public. They're obviously not profitable. They have so much compute costs and they're giving away their models for honestly much cheaper than it costs for them to actually run them. So, I understand that, but that is something to keep in mind. And you definitely are going to want to play around with these models as much as you can. And you're definitely going to want to play around with Fable 5 as much as you can from today until June 22nd. So, we've got like two weeks. So, yes, you can do it right now. You can see it says up here, meet Fable 5, our newest model for complex longunning work. Try anytime with SLMOD. You're going to have to make sure you update though if you don't see it. So, right here, you can see I have Fable 5. But otherwise, just go ahead and update your Claude code and then you can actually go ahead and use it. And let's just see how it works. Yeah, I mean that is freaking AGI. The first thing you see in this blog is that it says, "Today we're launching Claude Fable 5, a Mythos class model that we've made safe for general use." Mythos class. If we see the little one here, we go all the way down to see what that little one means. That little one means mythos class models are a tier of Claude models that sit right above Opus and capability. The first one, which was Claude Mythos preview, was released in April through Project Glasswing. That is today followed by Claude Fable 5 and Claude Mythos 5. So, there are two different models. This one is obviously more powerful than this one. All users who currently have access to the Mythos preview through Project Glasswing, will be able to upgrade to Claude Mythos 5, the same model as Claude Fable 5, but with cyber safeguards lifted. If you guys remember during the Project Glasswing announcement, that Claude Mythos preview was actually five times as expensive as Opus, but this one is only two times as expensive as Opus. So, we're clearly not getting the full model capability, which is actually what I pretty much predicted in this video where I said is Claude Myth was coming. I got a little bit clowned for this, but let's just watch this clip real quick. Is Claude Mythos coming? All right, here's where I land on it. And obviously, I could be completely wrong. I don't have any insider information. A public model that you can just log in and use called Mythos? I don't think that's happening anytime soon. And it might not ever happen under that name, at least not the way that we're picturing it right now. I mean, they kind of told us the plan. A leak doesn't change the plan. So, I mean, everyone waiting for a big Mythos button to show up in the app next week, I think they're going to be waiting a while. So what do I actually think happens? I think the capabilities start to show up but kind of quieter. You know, I think the stuff that makes Mythos Mythos, the stuff that makes it so special, those features sort of start to get baked into future versions of Opus. And once Enthropic decides the safety guardrails are solid enough, then that's when they we start to see some more stuff, right? Okay. So, I mean, that could age worse over time, but I mean that was pretty spot on. We're basically getting a extended version of Opus called Fable. And it no one generally is just going to be able to have access to Mythos right now. But as you can see, Fable 5's capabilities do exceed any model they've ever generally released. So, I'm very, very excited to get my hands on it, and you guys absolutely know I'm going to be dropping a ton of content once I do. It's state-of-the-art on nearly all tested benchmarks of AI capability, which I always think you should take with a grain of salt, but still important to look at. So exceptional performance in software engineering, knowledge, work, vision, scientific research and many other areas. Now obviously releasing a model like this has risks and without safeguards in areas like cyber security there could be people that use these models for malicious intent. I do think at the base at the core models are basically just they're they're neutral and it depends on the human's judgment and the human's intent and use case to say hey do you want to amplify your work for good reasons or for bad reasons? And so obviously they've launched this model with safeguards and they've kind of toned this way down from Mythos which is only going out to a small group of cyber defenders and infrastructure providers. Mythos 5 will initially be deployed through project Glasswing in collaboration with the US government as an upgrade to Claude Mythos preview. So it's better than Claude Mythos preview when this is the one just to remind you guys that was five times as expensive as Opus. It has the strongest cyber security capabilities of any model in the world. But they are going to be extending through glasswing to a broader trust access program. Not exactly sure how you apply for that, but probably doesn't apply for the general consumer. And of course, these models do have the capability to do a lot of good for the world because they're so so good at coding, which is obviously why they're good at cyber defense. But anything that is that good is also going to be that good at breaking the that cyber code. So that's why they have to be careful. If we take a look at some of these benchmarks here of Mythos 5 and Fable. So remember why we're looking at these two in the same um column here is because these are the exact same model under the hood. The only difference is that Fable 5 has all of those cyber safeguards lifted. So same reasoning and probably same cost, but the cyber safeguards have been lifted for mythos 5. Either way, you can see that pretty much every benchmark here is much better. The knowledge work took a big jump. Agentic coding took a big jump when you're looking at comparison to stuff like Opus 4.8 and GPT 5.5. legal, multidisciplinary reasoning, biology, and then of course the big one is the cyber security. We've also been seeing a ton of people talking lately about agentic loops and basically saying, "Hey, you shouldn't prompt your agents anymore. You should have loops of agents that prompt your agents." And I I think that that's very true and you can see here these models can work autonomously for much longer than previous cloud models. But I think that that's also something you have to be very careful about because if the model makers are saying that, they obviously want you to, you know, kind of like use more tokens. And most things, especially general knowledge work, don't require agent loops that run all the time. And at that point, all you're doing is shooting off an open-ended prompt and honestly just begging for your session limit to be hit by the time you come back. And if this thing is really as good as the benchmarks show in comparison to 4.8, which honestly, so far, I don't do a ton of software, you know, engineering and like deep deep programming, but I think Opus 4.8's been really good. If it's this much better with these different reasoning models or sorry with these different effort levels, then I'm really excited to play around with it. And this honestly is very accurate to me. You know, when I play with Opus 4.8 with max reasoning, I honestly don't see much of a difference between X high and max. So, this makes sense. But looks like they've also done a bump here to make the max effort obviously the most expensive a little bit of an improvement over X high. So, if you look at right now the way that you're using Opus 4.8 on X high. That's probably similar to how Fable is going to be on low and Fable on low is also going to be a little bit cheaper. So, as far as being able to try to give it a reference, that's what we've got. Agentic coding, you can see here on the S SW Bench Pro, which I don't even honestly look at anymore. I don't know if you guys have seen the deep s, but um basically just debunked this whole thing. So, I don't even look at this one like at all anymore. But the Frontier code, that's a pretty noticeable jump. Fable 5 shows strong performance on complex analytical tasks which is you know knowledge work and I'm very excited for that because when I use my you know aentic os my iOS inside of cloud code using fable 5 for that and doing all my knowledge work I'm really excited to see how good it really is also claude models in general have been getting so much better with vision which is insanely important especially for verification loops so now being able to use fable and like you know I'm going to try editing videos with it making slide decks and verifying building websites I'm excited to see how much better it is with vision. So, obviously on this blog, you can click through a bunch of these different use cases and different experiments that they've run with it. I'm not just here trying to regurgitate this blog for you guys cuz you guys can all do that. I thought that I would just share some of the things that I'm excited by and some of the things to be thinking about here. But anyways, like I said, get in there, start playing around with stuff. I'll be making more videos once I get my hands on it a little bit more. But remember that this will be no longer available through the subscription after June 22nd. They will be pushing to bring it back, but we don't know exactly when. So, just keep your eyes peeled on X or my YouTube channel. So, anyways, I know this one was quick, but hope you guys enjoyed the video, and if you did, please give it a like. Appreciate you guys making it to the end, and I'll see you in the next one. Thanks guys.