One-Shot Arcade

Timeline Versus

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OpenAI GPT-5.5 (xhigh)

OpenAIApril 2026

no playable output was saved

exhibit plaque

released: April 23, 2026
harness: Codex CLI
result: Working
build time: 10m40s
cost: $1.31
tokens in: 78,187
tokens out: 30,596
output: 0 B · 0 lines · 0 files

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OpenAI GPT-5.4 (xhigh)

March 2026

after this →

OpenAI GPT-5.5 Pro

April 2026

Every game here was built by a model in one shot — no edits, no retries.

est. March 2024