Opus 5.5
Claude Opus 5.5 vs GPT-6 Astra: Who Can Beat the Original Celeste First?I told them to play a game. Neither of them played it.
I Put Claude Opus 5.5 and GPT-6 Astra in the Dark Forest. Who Shoots First?I had Claude Opus 5.5 and GPT-6 Astra play the dark forest from The Three-Body Problem, 30 games. Step through every game epoch by epoch, rerun it under your own rules, play a civilization yourself, and read the prompt they got.
I Gave Opus 5.5, Haiku and DeepSeek the Same Game Prompt. They Made Triplets.I gave 3 AIs the same one-sentence prompt and got three identical breakout games. Spelling out gameplay, style, feel and where you play got me this one.
I Let Opus 5.5 and GPT-6 Astra Take Over BlenderSame prompt for Opus 5.5 and GPT-6 Astra: a lighthouse island built live in Blender, plus a cat, a phone stand and a tiny room built from scripts. Spin the models in your browser, copy the prompts, download the STLs.
Opus 5.5 Motion Graphics: Zero After Effects, All CodeOne button turns into a whole app and back: UI motion written by AI as a single web page, with springs, a beat grid and motion blur. The demo runs live in your browser; the prompt is here to copy.
Can AI Crack Napoleon's Cipher? Claude Opus 5.5 vs GPT-6 AstraThe six letters from the AI codebreaking video: where to find the real 1809 letter, four cipher letters I wrote (copy the ciphertext, click for the answer), and the Kryptos K4 challenge prompt.
Claude Opus 5.5 vs GPT-6 Astra: Chess on a Real ClockClaude Opus 5.5 and GPT-6 Astra play a full game of chess on maximum reasoning, with no tools and no engine. A rules engine bounces illegal moves, Stockfish scores every position, and there's a real chess clock: 90 minutes each, never more than 10 minutes a move.
Why Every AI-Made Video Looks the SameI asked AI for the same promo video 13 times and got the same video 13 times. Add 7 pacing rules, all numbers, and it looks like a different AI made it.
AI Pixel Art Animation, Made With 300 Lines of CodeAn AI wrote 300 lines of Canvas code and made a 12-second seamless loop of a rainy-night ramen stall. The demos run live in your browser; the prompts are here to copy.