Asked for Mario: Fable made Gary the Plumber, Gemini copied
Author’s claim. Posted before Fable 5.2 came out. The author called it Fable 5.5, the name rumors gave the next Fable. We can’t verify which model ran.
One email a week: the best new Fable 5.2 works
Picked from what creators posted that week, each one credited and linked to the original post.
One email a week: the best new Fable 5.2 works
Our note
Two playable side-scrollers stacked and labelled Claude Fable 5.5 and Gemini Carbon 4, from a prompt asking for Super Mario. The top game is GARY THE PLUMBER: Meadow 1, hills, pipes, water and a water tower, ending on LEAK FIXED! The bottom one is a close copy of World 1-1 with CRT lines, ending on World 1-1 Clear! The author says the Fable run took 29 minutes and $34, the Gemini run 3 minutes and $0.90.
Written by The Frontier Brief after watching the video (Nov 9, 2026). It describes what is on screen; we have not run the work ourselves.
Prompt
Create a fully playable, feature-complete Super Mario Bros. (World 1-1) arcade game in a single HTML file (combining HTML, CSS, and JavaScript) featuring original 8-bit pixel art graphics and a complete English interface. Key Requirements: 1. Physics & Movement: - Omnidirectional camera scrolling (allowing smooth movement and scrolling both right and left so the player can walk back). - Balanced, comfortable character speed with smooth acceleration and NES-style inertia. - Independent keyboard controls (Arrows / WASD for movement, SPACE / W / X for jumping, SHIFT / Z for running and shooting fireballs, P for pause, F for full-screen mode). 2. Map & Objects (World 1-1): - A complete recreation of World 1-1 (question blocks, breakable bricks for Super Mario, pipes of varying heights, gaps/pits, stairs, flagpole, and the final castle). - Hidden secrets and power-ups (1-UP mushrooms, multi-coin blocks, fire flowers, starman invincibility). 3. Audio & Visuals: - Built-in 8-bit sound effects and background music synthesized dynamically via the Web Audio API without any external audio files. - Toggleable CRT scanline overlay for an authentic retro television aesthetic. - A dedicated fullscreen mode that expands solely the game canvas while preserving its native 4:3 aspect ratio.
What we know
- Model
- Listed under Fable 5.2. The author wrote Claude Fable 5.5 (author’s claim)
- What we checked
- The post names Fable 5.5 (reviewed 2026-11-09). Which model actually ran is the author’s claim.
Video from @0xRhinoX’s post on X, credited to the author. Want it taken down? Email support@fable5.app.
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