Claude Epitaxy, Mythos FAST Mode, Opus 4.7, Sonnet 4.8, Leaks: This is CRAZY!!!

Hi, welcome to another video. So, as of March 31st, 2026, there are some more anthropic leaks floating around. And honestly, the most interesting one is not even Methos or Capiara anymore. It is something called Epitaxi. And if these leaked clips are real, this looks like a new Clawed Code web mode. or maybe a new clawed desktop mode that ties local and web execution together in one cohesive interface. And honestly, it looks pretty cool. Now, before we get into the speculation, let's talk about what is actually visible in the leaks. In one of the clips, you can see a clawed code style interface with controls at the bottom for local, select folder, and work tree. There is also an autoac accept edits control prompt box and a model picker. So this does not look like some random concept art. It looks like an actual working build of something. Then in another leaked clip, the same interface is shown with browser dev tools open and the window location literally says claude.ai/epitaxi. So that is the part that really got my attention because if one clip shows a local claude code style interface and another clip shows the same thing on a claude.ai web route, then the simplest explanation is that Anthropic is working on a unified task interface where you can launch work either on your own machine or on the web. And if that is what this is, then this is actually a pretty big deal. One of the slightly messy things about Claude right now is that you have the CLI, the desktop app, and the web product. And although they are clearly connected, they can still feel like separate surfaces. But Epitaxi, at least from these leaks, looks like Anthropic may be trying to make all of that feel like one product. So instead of thinking okay this is local claude code and this is web claude and this is some other background task product maybe you just get one cohesive interface and then choose where the task runs that is exactly why I think this leak matters more than the model leak for most people. If you're working on a repo locally you can imagine selecting local picking a folder toggling work tree and letting Claude run there. But if you want to send a task off to the web or to a hosted environment, then maybe you launch that from the same interface as well. So instead of switching products, you're just switching execution targets. Now, I'm saying if because none of this is officially confirmed yet. These are still leaks. But there is another thing that makes this feel more real. People reverse engineering recent clawed desktop builds have pointed to Epitaxi as an additional mode alongside the more normal chat code and task style sections. So when you combine that with the actual leak clips showing a claude.ai/epitaxi route, this starts looking less like a random internal code name and more like a real feature Anthropic is actively building. Now, let's talk about the design for a second because the design is kind of awesome. The leaked interface has this dark almost CRT- like look with a tiny pixel claw icon, a flame animation, and a giant glowing message that says, "Let cloud cook." And honestly, chef's kiss, it has way more personality than the usual sterile agent interface stuff we keep seeing. Most AI products still look like a gray sidebar and a generic spinner. This thing actually looks like it was designed to feel like a mode. It feels like Anthropic is leaning into the idea that you are launching a longunning task and then letting the system cook. And yes, some people are probably going to say it is gimmicky, but I actually think this is good if you're building more autonomous agent workflows. The interface should feel distinct. It should feel like you are entering a different state of the product, not just sending another chat message. So that burning interface theme is not just cool visually. It also communicates that this mode is meant to do more than ordinary chat. Another thing I noticed is that the leaked build shows very claude code specific controls. You can see work tree, you can see folder selection, you can see autoaccept edits. And in one of the clips, the model picker shows familiar clawed model options like opus 4.6. 6, Sonnet 4.6, and Haiku 4.5. So again, this looks much more like a real product path than just a flashy mockup, although one of the clips also shows Sonnet 4.5 in the footer, which makes me think these are probably rough internal builds or staged environments rather than something final. So take the exact UI details with a grain of salt. Now, there are also some other Claude Code leak takeaways floating around, and these make the whole thing even more interesting. One leak summary says Anthropic is actively using Capiara which seems to be the same thing as Mythos for claude code development itself. It also says they are already on Capiara version 8. If that is accurate, that is kind of wild because it suggests Anthropic is iterating on this model really fast internally and dogfooting it directly inside the Cloud Code workflow. The same summary says Capiar still has issues with over commenting and false claims. And weirdly enough, that is one of the reasons the leak feels more believable to me. Fake hype leaks usually make everything sound perfect. But saying, "Yeah, this model is strong, but it still overcence and still says wrong stuff sometimes." That actually sounds like a real internal note. It also reportedly has a 1 million token context window and a fast mode. If that is true, then that fits really well with the Epitaxi story because a unified Claude code interface makes even more sense if Anthropic is also giving people different ways to trade off speed versus depth under the hood. And then there are the other code names. Numbat is another interesting one because one leaked note apparently had a placeholder saying remove this section when we launch Numbat, which is pretty funny. And Fenex seems to map to Opus 4.6. So Anthropic clearly has a whole internal zoo of names around claude code and model roll out. Now if I had to guess what Epitaxi is supposed to be, I would say it is Anthropic's attempt to unify Claude code, claude desktop and web-based task launching into one surface. I think they want a world where you can open Claude, decide whether the task should run locally or remotely, choose the model, and then watch the same kind of agent experience play out without having to jump across completely different products. And if they pull that off, well, that is huge because for a lot of people, the hard part of aic coding tools is not just model quality, it is workflow fragmentation. The CLI feels one way, their desktop shell feels another way. I think that some tasks would be better locally because they need your files terminal and repo context. Other tasks are better remotely because you want them to keep running without tying up your machine. A cohesi interface that handles both would actually solve a real a real actually feel first. Now with that said, let's come back to mythos and capiara. The earlier leak is still important. On March 26th, 2026, Fortune reported that Anthropic confirmed it is testing a new frontier model with meaningful advances in reasoning, coding, and cyber security, and that a small group of early access customers is already using it. So, that part is real. Anthropic itself confirmed a stronger unreleased model exists. And based on the newer Claude code leak notes, I think the cleaner interpretation is still that Mythos and Capiara are the same model, not two separate launches. They look like draft names or parallel naming options, while Anthropic was still landing on the final branding. So instead of obsessing over which name wins, I think the bigger takeaway is that Anthropic is already using this thing internally. It may already be on Capiara V8 and it still sounds like a rough but very capable work in progress. That model still sounds pretty serious by the way. The leaked materials frame it as a step change beyond Opus with stronger coding reasoning and cyber security performance. But the clawed code leak also makes it sound imperfect in a believable way. stronger, faster, massive context, but still prone to some over commenting and false claims. That sounds a lot more like a real Frontier dev build than a polished marketing page. But if you put the two leaks together, the bigger picture becomes more interesting. It is not just that Anthropic may have a stronger model coming. It is that Anthropic may also be building a better surface to use that stronger model. And I think that matters a lot because a frontier model on its own is great for benchmarks and headlines, but a cohesive interface that lets people actually launch useful tasks locally or on the web is what turns that capability into a real product experience. So in my mind, Epitexi may be the interface story while Mythos or Capiara is the model story. And if those two things land around the same time, then Anthropic is not just shipping another model update. They are potentially reshaping how Claude code, Claude desktop, and Claude on the web fit together. Now, of course, there are still a lot of unknowns. We do not know if Epitexi is the final name. We do not know if it will be public, limited, or experimental. We do not know whether web execution means a browser sandbox, a hosted clawed environment, background remote agents, or something else. And we also do not know whether Mythos or Capiara ends up being the final model name either. So there is still a lot of room for things to change. But the direction is what matters and the direction looks pretty compelling. Anthropic seems to be moving toward a world where Claude is not just a chatbot or just a coding CLI. It becomes a unified agent system where you can launch tasks in different environments from one place. That is a much bigger shift than just saying here is onet 4.7 or here is obus 4.7. It is a product shift and if you ask me that burning let claude cook it interface actually captures the vibe really well. It feels like anthropic knows agent workflows need a better identity. They need to feel intentional, not like hidden power user features bolted onto a chat app. So, if this is real, I like the direction a lot. Overall, I think Epitaxi is the main thing to watch. Now, Mythos and Capabara are still important, but more as the model underneath the story. The real headline for me is that Anthropic may be preparing a unified clawed code experience where you can launch tasks on your local machine or on the web from the same interface. And if they really do ship that, it could be one of the most important clawed product updates yet. Overall, it's pretty cool. Anyway, let me know your thoughts in the comments. If you like this video, consider donating through the super thanks option or becoming a member by clicking the join button. Also, give this video a thumbs up and subscribe to my channel. I'll see you in the next one. Until then, bye.