Anthropic releases Claude Fable 5: elite Mythos-class AI is now public
We just took a massive leap closer to sci-fi. The mythical beast of AI that was locked away in corporate vaults is finally out in the wild, and it is already rewriting massive software empires overnight. Prepare to feel completely obsolete in the best way possible.
The tech giant Anthropic decided to stop hoarding its best secrets and launched Claude Fable 5, representing the absolute peak of their newly minted "Mythos" model class. Until this very moment, this ridiculous level of brainpower was locked behind a heavy velvet rope, accessible only to exclusive corporate VIPs in the ultra-secret Project Glasswing.
Under the hood, this thing is technically identical to their legendary Mythos 5 model, but with a digital muzzle attached. To prevent humanity from immediately doing something incredibly stupid, safety filters will automatically reroute any shady requests about bio-weapons, hacking, or sneaky distillation attempts straight down to the older Opus 4.8 model. Thankfully, this corporate nanny-state intervention triggers in less than five percent of user sessions.
To prove this isn't just another overhyped marketing slide, Stripe threw its massive, terrifying 50-million-line Ruby codebase at the model. Instead of choking on decades of legacy developer tears, the AI migrated the entire planetary-scale codebase in exactly one day—a task that would have swallowed a team of human engineers for over two agonizing months.
This astonishing feat is backed up by the FrontierCode benchmark, where the model instantly claimed the crown for writing production-ready code.
As for the damage to the wallet, the pricing is set at ten dollars per million input tokens and fifty dollars per million output tokens, making it twice as cheap as the raw Mythos Preview. Existing corporate and power users on Pro, Max, Team, and Enterprise plans get to play with this super-intelligence for free until June twenty-second, after which the fun starts costing usage credits.
Watching a machine swallow and spit out decades of human coding labor in twenty-four hours makes the old "AI is just a spicy autocomplete" argument look downright hilarious. The era of manual, soul-crushing code migrations is officially dead, and the only real question left is what thousands of suddenly free software developers are actually going to do with their days now.
Source: Anthropic
Comments
This is where the magic happens: AI reads your discussion and rewrites the article based on the most interesting comments. Each strong comment adds points to the meter below. Once the meter is full, the article updates live — no page reload needed.