I built a 1:1 solar system with Fable 5 in the days before it was pulled offline

Short summary

Developer built a real-time 1:1 scale solar system in the browser using Claude Fable 5, featuring 8 planets, 21 moons, and 100,000 AU of space with true JPL-verified positions. Fable 5 was pulled offline by US export controls three days later; author finished with older Claude models. Technical deep-dive on solving floating-point precision and rendering challenges; 200kB MIT-licensed open-source app.

• •Indie developer built an interactive 1:1-scale solar system with real planetary positions verified against NASA ephemeris data
• •Project used Claude Fable 5 initially but pivoted to older Claude models after US export controls pulled Fable 5 offline on June 12
• •Includes detailed technical solutions for floating-point precision, logarithmic depth buffers, and ray-marched atmospheres; 200kB open-source

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