Introducing the AI Ads Index. The First Public Tracker for ChatGPT Ads.
The AI Ads Index is live. The first public daily index of sponsored ads inside ChatGPT answers, refreshed every morning.
ChatGPT is putting ads inside its answers. We track them every day.See the AI Ads Index
Author
Samanyou Garg
Founder @ Writesonic
Samanyou is the founder of Writesonic, a platform that helps you track & boost your brand’s visibility in AI search. Two years before the launch of ChatGPT, Writesonic was already at the forefront, helping organizations automate their entire marketing workflow through specialized AI agents for SEO and content. Samanyou is a Forbes 30 Under 30 awardee and a winner of the 2019 Global Undergraduate Awards, often referred to as the junior Nobel Prize.
Articles by Samanyou Garg
Introducing Project hub in Writesonic for multi-brand teams
Project Hub gives you a single view of every brand-monitoring project in your workspace. AI Visibility, Citation Share, and trends in one place.
Writesonic MCP: Query Your AI Visibility Data From Any AI Client
Connect Writesonic to Claude, ChatGPT, Cursor, or n8n. Ask one question, get live GEO data back in the conversation you're already having.
ChatGPT Ads Went From 0.03% to 14% Overnight. 47.7% of US Responses Now Carry One
We measured ChatGPT ad penetration across 363,129 responses over 31 days. For 30 of those days, ads were a rounding error. On day 31, the surface flipped.
GPT-5.5 Instant vs GPT-5.3 Instant: Brand Citations Drop 55%, Reddit Becomes ChatGPT’s Top Source
ChatGPT replaced GPT-5.3 with GPT-5.5 as its free-tier default in early May. The data shows brand citations halved, Reddit became the most-cited domain by a 3x…
Fan-out query tracking is live in the Writesonic Chrome extension
See every sub-query ChatGPT, Claude, Gemini, and Perplexity run before they answer, alongside Google keyword data, in the Writesonic Chrome extension.
GPT-5.5 Cites Brand Sites 47% of the Time. GPT-5.4 Did 57%. The Citation Data No One’s Talking About.
GPT-5.5 cites brand websites 47% of the time, down from GPT-5.4’s 57%. The mechanism: site: operator usage collapsed from 40.5% of searches to 12.6%. Here’s wh…
ChatGPT ads tracking is live in Writesonic
Track ChatGPT and Google AI Overviews ads alongside your organic AI visibility. See which prompts trigger sponsored placements, which brands dominate, and how…
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