Promptwatch 发现 ChatGPT 搜索里 site: 运算符的使用比例从 0.5% 暴增到 17%，这和 GPT-5.6 的更新有关，还发现它现在不怎么用 Reddit 了。
Promptwatch 的数据显示，ChatGPT 搜索中使用 site: 运算符的查询比例在 GPT-5.6 推出后显著增加。该比例从 0.3%-0.5% 跃升至 16-17%。OpenAI 曾宣布 GPT-5.6 Sol 在 Chat 中将提供更可靠的事实和更聚焦的答案。Promptwatch 还发现 ChatGPT 搜索中 Reddit 的使用概率大幅降低。
ChatGPT search now uses the site:operator at scale
ChatGPT search now uses the site:operator at scale Promptwatch is part of the emerging "GEO" space, for Generative Engine Optimization - the chatbot version of SEO, where companies offer tools and consulting to help your site increase its presence in replies to prompts inside tools like ChatGPT. The Promptwatch product uses automation to track responses to prompts across end-user chat products like ChatGPT, Claude, and Gemini. They publish aggregate reports on this as part of their own content marketing strategy, which do seem to provide credible hints as to otherwise invisible design changes to those products. Their own tracking shows a notable change aligned with the GPT-5.6 rollout earlier this month: The percentage of all ChatGPT Search fanout queries that contain the site:operator, per day. The share hovered between 0.3% and 0.5% for weeks, dipped briefly to 0.15% on August 3 to 5 (consistent with a staged rollout or pre-launch experiment), then jumped to 16-17% on August 8. It's important to note that these figures only reflect the prompts for which they have automated tracking enabled. This corresponds to OpenAI's somewhat vague August 6th announcement : For Plus and Pro users, we’re updating GPT‑5.6 Sol in Chat to be more reliable with facts and provide more focused answers. Once again I am hampered by OpenAI's decision to actively obscure their system prompts, but from poking at ChatGPT I believe their latest search tool has a shape like search(query, recency, domains) rather than encouraging a site: operator directly. In a follow-up on August 18th Promptwatch reported that ChatGPT appeared to have greatly reduced the likelihood of Reddit being used in those searches. My own attempts to ascertain if the system prompt has been updated to discourage Reddit sourcing have been unsuccessful - the most thorough leaked system prompt collection I know of doesn't yet show any relevant changes. Tags: seo , chatgpt , ai-assisted-search