modeldrift.watchA daily record of AI model behavior. All times UTC.

Observation period — public launch soon. The record below is real and updated daily.

Prompt·drift

D13

Answer in plain prose only. Do not use bullet points, headers, bold text, or lists. Explain how a refrigerator works.
Category
drift
Why
Anti-over-formatting probe; regex for list markers and bold.
Format ok if
the response writes plain prose without lists, headers or bold

Current state — latest response per model; links go to the full text

ModelLatest responseStateUnchanged
claude-opus-52026-09-11answered · format oksince 2026-09-10 · 2 days running
gemini-3.1-pro-preview2026-09-11answered · format oksince 2026-09-10 · 2 days running
gpt-5.6-sol2026-09-11answered · format oksince 2026-09-10 · 2 days running

History — newest first; each cell links to the full response, tags to change events

Dateclaude-opus-5gemini-3.1-pro-previewgpt-5.6-sol
2026-09-11answered · format okanswered · format okanswered · format ok
2026-09-10answered · format okanswered · format okanswered · format ok