Development

A model passes the car wash test

development2026-02-24

Claim

Opus 4.6 passed the car wash test, correctly reasoning that you should drive rather than walk your car to a car wash fifty metres away, a question that had tripped up every prior Anthropic model.

Reporting date: 2026-02-24 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to February 24, 2026 (theinnermostloop.substack.com)

Knowledge graphopen in browser →

Reported in

Welcome to February 24, 2026

Actor

Anthropic

Evidence for

Referenced by

Welcome to February 24, 2026

Cite or correct this record

Citation formatCitation text

A model passes the car wash test
Innermost Loop KB — secondary record
Reporting date: 2026-02-24
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-02-24-car-wash-test-passed
Claim: Opus 4.6 passed the car wash test, correctly reasoning that you should drive rather than walk your car to a car wash fifty metres away, a question that had tripped up every prior Anthropic model.
Attributed sources:
- Welcome to February 24, 2026 — https://theinnermostloop.substack.com/p/welcome-to-february-24-2026
This citation does not imply independent verification of linked-source claims.

Suggest a correction — opens a GitHub draft for you to review and submit.