This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
colton
mccurdyc.dev
did:plc:7vzwa7bq46pxqngpczavpnwy
"I want to wash my car. The car wash is 50 meters away. Should I walk or drive?"
https://opper.ai/blog/car-wash-test
Some models (Sonar): Right answer, insane reasoning.
Claude Opus 4.6, Gemini 2.0 Flash Lite, Gemini 3 Flash, Gemini 3 Pro, Grok-4
the only models that answered correctly across 10 runs.
2026-02-26T10:53:05.361Z