Someone used Claude Code to make a sailing sim, then challenged other frontier LLMs to a race

Summary Claude Code sim lets LLMs helm virtual yachts using world-state inputs every 5s.

Gemini 4 Argon won easily; GPT-6 Astra 2nd, Claude Opus stalled, Qwen visited a beach.

They used Claude Code to make a realistic boat-racing simulator, then tasked the frontier LLM models with a virtual race.

Claude Code created a sailing arena for four AI models to duke it out The results were wildly varied Over on the ClaudeAI subreddit, user abhi3188 showed off what they made in Claude Code.

Despite having a hand in coding the sim, Claude Opus 5.5 came in third after it stalled on the way home and timed out.