Claude Fable 5 vs Codex GPT-5.5: Which AI Can Code Subway Surfers Better?

I tested Claude Fable 5 against Codex GPT-5.5 to see which AI can vibe code a Subway Surfers-style game from scratch. In this challenge, both AI coding models build an endless runner game with train tracks, coins, obstacles, player movement, graphics, and gameplay mechanics. One version looks more polished and close to a real mobile game, while the other looks more pixelated and basic. Watch the full comparison to see which AI is better for coding games, building apps, and creating playable projects from just a prompt. In this video: Claude Fable 5 game coding test Codex GPT-5.5 game coding test AI vibe coding comparison Subway Surfers-style game from scratch Best AI coding model for game development