Demos · March 6, 2026
GPT-5.4 Demos
Every demo on this page was coded entirely by GPT-5.4 — OpenAI's newest model, released today. No human-written code. We prompted the model via the API and shipped what it built.
Night City Racing
Drift through a neon-soaked city at night. Tire smoke, AI opponents, rain effects, ghost replay, and synthesized engine audio. Three revision passes by GPT-5.4.
Brutalist City Builder v2.0
Expanded to 24×24 grid with Stalinist palaces, stadiums, and cooling towers. Animated crowds, passing vehicles, weather system, ruins mode with particle effects.
Real-time Satellite Tracker v2.0
ISS live position + crew count, ground station pass predictions, collision proximity alerts, day/night terminator, cloud layer Earth, theater mode.
Retro RPG City Builder v2.0
Quests, factions, hero unit, dragon attacks, seasons, dungeons, 7 NPC classes, 7 new buildings. An actual game, not just a demo.
Brutalist City Builder
Build a Soviet-inspired brutalist cityscape on a grid. Massive concrete blocks, repetitive windows, imposing structures. Sliders for height, fog density, and concrete darkness. Day/night toggle with cinematic lighting.
Real-time Satellite Tracker
Track all active satellites in real-time on an interactive 3D Earth globe. Color-coded by constellation: Starlink in blue, ISS in orange, GPS in green. Click any satellite to see name, altitude, and speed.
Retro RPG City Builder
Top-down pixel art city builder with walking NPC townfolk, a gold economy, and a day/night cycle. Place bakeries, taverns, blacksmiths, and more.
How We Built These
Each demo was generated by sending prompts to the gpt-5.4 model via OpenAI's API. No code was written by hand.
Our process: one prompt, one response, ship it. GPT-5.4 generates a single self-contained HTML file with all CSS and JavaScript inline. No iteration, no debugging — just the raw output from launch day.
This is what the frontier looks like in March 2026. These aren't cherry-picked successes — they're the first attempts, unmodified.