I Gave Claude Sonnet 5.5 Four Concept Images. It Built the Game.

Can Claude Sonnet 5.5, the cheaper Claude model, turn four concept images into a real, playable game? This time every agent ran Sonnet 5.5 on Extra effort, and I wanted to see what it can really do. Paper Plane: a papercraft flying game in Godot. Fold a paper plane, ride the air currents, fly through 12 rings over a pop-up town on an open book, and land on a pencil cross. In this video: • 34 paper models, every one written as a Blender script (nothing downloaded) • a plane folded from a real crease pattern, and a town that pops up out of a book • flying on energy: dive for speed, climb in air currents, don't stall • a paper HUD and a map that turns with you • the concept vs the game, side by side, and my own first flights About a day of work (26 h). On my Max plan it used part of my weekly limit; at API list prices the same work would be about $680. Was it cheap? Tell me in the comments. And should I put Sonnet against Opus next time, same conditions? Chapters 0:00 Sonnet 5.5 vs four concept images 0:35 What we built 0:59 The model: price, benchmarks, Extra effort 1:42 Paper from code: 34 models 2:51 The plane: a real crease pattern 3:28 The pop-up book 4:23 Making it fly: energy, currents, the route 5:25 Paper HUD and the map 6:02 Concept vs game 6:55 I fly it myself 7:58 Outro Model info: https://www.anthropic.com/claude-sonnet-5-5 (price and benchmarks as published there, September 2026). Concept art by GPT-6 Astra (reference only, not in the game). Music (YouTube Audio Library): Cutscene Crush – Blue Deer Studio Marimba Chill – Jimena Contreras Viral Dirge – Ryan Stasik Science Montage – Jeremy Blake The Road To Mordor – Ezra Lipp Moon Vision – Chris Haugen #ClaudeAI #Sonnet #gamedev #Godot #AIgamedev