The topic Claude just released a Mythos-level model, but you only have 10 days to try it is currently the subject of lively discussion — readers and analysts are keeping a close eye on developments.
This is taking place in a dynamic environment: companies’ decisions and competitors’ reactions can quickly change the picture.
according to the data Anthropic’s announcement post about Fable 5, the new model appears to be at least on some level similar to Mythos, as it is actually labeled next to Mythos 5 on a performance graph. The company says it is built to tackle your longest-running and most complex usages. Additionally, based on the performance graph seen in the announcement, it even performs better than the Mythos Preview in some cases.
Now, none of this is to downplay how impressive Claude can be, especially if you utilize it correctly. For instance, using Claude Cowork to take over repetitive tasks can be game-changing.
If you haven’t been paying attention to the conversation surrounding Claude Mythos, the model is supposedly so dangerously good at what it does, that Anthropic is afraid to release it to the general public. Instead, the company has been testing it behind closed doors, as part of a larger cybersecurity push to bring more AI into that particular sector of things. That, itself, is terrifying enough. However, Fable 5 appears to be a more consumer-focused version of the Mythos model. Though, exactly how much has changed, or how much Anthropic has limited it, is hard to say without a direct comparison.
However, the model is clearly more geared towards cybersecurity and biology industries, as Anthropic even notes in the announcement that there are “robust safeguards for cybersecurity and biology” that will kick the AI model to a less expensive model should any of the safeguards be hit. This should help cut down on usage, which is twice the cost of Claude Opus, according to the data a note on the Claude website and app.
We also don’t really know how well it will stand up against Mythos in day-to-day usage, as nobody in the general public has had a chance to really toy with Mythos yet, thanks to its extremely limited access. And that doesn’t seem to be changing, as Mythos 5 will continue to only be available to Glasswing members (which is the cybersecurity alliance that Anthropic set up with several other major tech companies). But it is pretty powerful, as Anthropic has already shown off that it can beat Pokémon with just visual input.
Claude is an advanced artificial intelligence assistant developed by Anthropic. Built on Constitutional AI principles, it excels at complex reasoning, sophisticated writing, and professional-grade coding assistance.