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ChatGPT search now uses the site:operator at scale

AnnouncementProductAug 20, 2026

Promptwatch tracking data shows ChatGPT Search queries containing the site:operator jumped from around 0.5% to 16-17% on August 8, aligned with the GPT-5.6 rollout. OpenAI's August 6 announcement stated GPT-5.6 Sol was updated to be "more reliable with facts and provide more focused answers." Promptwatch, which monitors responses across ChatGPT, Claude, and Gemini, also reported that ChatGPT appeared to reduce Reddit sourcing in searches by August 18.

Receipt № 14941 source · awaiting confirmation ◐

Evidence

1source· awaiting independent confirmation

No score is assigned. Sources and their independence are shown in the citation chain below.

Citation chain · 1 source

OpenAICompanyGeminiModelClaudeModelGPT-5.6ModelGPT-5.6 SolModelPromptwatchCompany
Canonical: https://simonwillison.net/2026/Aug/20/chatgpt-search-now-uses-the-siteoperator-at-scale/