Anthropic’s newly released Claude Fable 5 is already being used to generate video games and other software projects with a single prompt, according to early experiments by AI researcher Ethan Mollick.
Fable 5, unveiled Tuesday, is the first publicly available version of Anthropic’s Mythos model.
Strong early impressions
Mollick, a professor at the University of Pennsylvania, said the model delivered some of the best results he has seen from a publicly available AI system.
In a post on his Substack, he wrote that Fable “outperformed basically every other public model I have used by a considerable margin.”
He added that the model was “capable across many problems and produced some startling results — it would work up to a dozen hours executing on multi-page specifications.”
One prompt, several games
Using Claude Code, Mollick said he generated multiple games from a single initial prompt.
Among them was Snake, a Pac-Man-style game in which players control a constantly moving snake that collects apples.
He also created Strata, a game set in a network of underground tunnels where players light lanterns while exploring.
Another project, Duino, drew inspiration from Rainer Maria Rilke’s Duino Elegies.
The game features:
- A solitary character.
- A nighttime setting.
- Passages from the poems appearing as players move through the environment.
Beyond games
Mollick also used Fable 5 to create an isochronic map, a visualization showing travel times between locations.
According to the article, the resulting map displayed a high level of detail and accuracy.
Broader implications
The experiments suggest increasingly complex software projects may be created with far less manual work than before.
Examples highlighted in the report included:
- Video games.
- Mapping tools.
- Systems based on lengthy technical specifications.
Anthropic released Fable 5 earlier this week as a public version of its closely watched Mythos model.
TL;DR
Anthropic’s Claude Fable 5 has been used to generate video games and mapping tools from a single prompt. AI researcher Ethan Mollick said the model performed better than other public systems he has tested.
AI summary
- Anthropic released Claude Fable 5 this week.
- University of Pennsylvania professor Ethan Mollick praised its performance.
- He used the model to generate several games from one prompt.
- Projects included Snake, Strata and a game inspired by Rainer Maria Rilke.
- Mollick also created a detailed isochronic map with the model.
