Anthropic has released Claude Fable 5, the primary publicly obtainable model of its closely watched Mythos mannequin. What can Fable really do? Every kind of issues, it seems.
Ethan Mollick, a notable AI researcher and College of Pennsylvania scholar, has been playing around with the mannequin and appears to be having numerous enjoyable.
In his testing, Fable constantly “outperformed principally each different public mannequin I’ve utilized by a substantial margin,” Mollick wrote Tuesday on his Substack. He added that it was “succesful throughout many issues and produced some startling outcomes — it could work as much as a dozen hours executing on multi-page specs.”
Maybe most strikingly, Mollick used Fable to create a wide range of video video games — all of which have been generated by way of “one preliminary immediate” in Claude Code, the researcher says.
Amongst these, Snake is strictly what it appears like. You’re a Pac-Man-like snake and also you roam round consuming apples. The snake by no means stops shifting, and for those who run off the display, you die. It’s very Eighties arcade however, like a lot of these previous video games, it’s weirdly addicting. I performed it longer than I’d prefer to admit earlier than remembering I’m a gainfully employed author and never, in truth, a serpent who likes fruit.
Then there was Strata, the place you’re roaming round in a seemingly countless community of subterranean tunnels and the purpose is simply to gentle as many lanterns as potential. The graphics seem like a degraded model of Myst — they aren’t nice — however the truth that the sport exists in any respect, generated from a single immediate, is spectacular.
Mollick even managed to create Duino, a sport based mostly on the Duino Elegies, the celebrated cycle of poems by poet Rainer Maria Rilke. I just like the animation right here greatest — the participant is a lone determine in a nocturnal panorama — though there isn’t a lot to the gameplay aside from strolling round whereas Rilke passages materialize on the display.
Other than the number of prompt video games Mollick produced, he additionally used Fable to create an isochronic map — a visualization displaying how lengthy it takes to journey between any two areas. The accuracy and element is arresting.
The implications are fairly clear. Software program tasks that when required whole groups — video games, mapping instruments, extremely complicated specs — are actually being spun up from a single immediate. It’s motive for vibe coders of the world to rejoice. As for founders and operators watching AI functionality curves, it’s a helpful knowledge level about how shortly the ground is rising.
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