Anthropic's Fable 5.2 Builds A Playable 3D Shooter From Prompt Alone
Felix Rieseberg, a developer at Anthropic, said on November 9 that he gave the company's Fable 5.2 model a single instruction and it produced Saltline, a first-person shooter playable in a browser.
1 source 48m ago
Reporting from 1 source: ASCII.jp.
Why it matters
A single prompt produced a working shooter with no art assets, which makes the cost of a small game's content an API bill rather than an asset pipeline, and Rieseberg is treating the result as a test of one-shot generation without human feedback.
Key Facts
- Anthropic developer Felix Rieseberg said on November 9 that Fable 5.2 built the browser first-person shooter Saltline from a single instruction.
- The build took about 8 hours and about $550 in API fees.
- Rieseberg says no 3D models or image files were prepared; shapes, textures, lighting and sound effects are generated by code.
- Saltline fits in a single HTML file of about 1.4MB and is playable in a browser.
- The released version adds weapon models, sounds and progression adjustments Rieseberg made over about 2 hours after the initial generation.
The build took about 8 hours and roughly $550 in API fees. Rieseberg says no 3D models or image files were prepared: shapes, textures, lighting and sound effects are generated by code, and the whole game fits in one HTML file of about 1.4MB.
Saltline is set in a rain-soaked container port, where the player fights drones and quadruped robots while shutting down three communication relays. In about 72 seconds of footage, lights reflect off the wet road and the player moves through rows of containers and warehouses with a gun raised.
The container surfaces are drawn with formula-based waveforms, and the browser executes code to build the scenery and the sounds instead of loading images or audio files. The released version also carries weapon models, sound and progression tweaks that Rieseberg added over about two hours after the initial generation, and the pre-adjustment build is available at a separate link. Forks of the standalone repository have appeared on GitHub, with developers publishing tools that play back the game's shapes and audio.
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