Similarweb

Answer: very reliable.

Our full report on the Gen AI Landscape in 2026 is live and available for download here: similarweb.com/corp/reports/2…

Gen AI has crossed into mainstream adoption, yet it's still growing at double-digit rates. >>

I can't stop thinking about these three graphs from @Similarweb's report last week. And what they really mean, together, for how we should prioritize marketing work (and product design) 👇

The fastest-growing websites among the world's 10 largest in H1: 1. TikTok 2. ChatGPT 3. Instagram

@cb_doge Thank you for sharing. The data is from this report for whomever is interested: similarweb.com/corp/reports/2…

BREAKING: Grok’s monthly active users surged 117% YoY, more than doubling in under a year 🚀

We just released a new Gen AI Landscape report, packed with insights into the industry's biggest trends. Download it here: similarweb.com/corp/reports/2…

AI MAU growth: → ChatGPT continues to widen its lead → Meta AI is the fastest-growing, followed by Claude → Grok and Perplexity also posted significant gains >>

@randfish Thank you for this insightful breakdown, Rand

Audience overlap over time between Gemini and ChatGPT

@emot No, we mean the top 10 websites by traffic coming from social media websites.

@Similarweb You mean top 10 social media sites driving more traffic ?

The top 10 websites receiving traffic from social media in June 2026

Grok's year-over-year traffic growth in Q2

@Rahulmandoliyaa Yes, Worldwide

@Similarweb This is for all our the world ?

Google's leading Gen AI domains recorded triple-digit year-over-year growth in H1

Year-over-year growth in website visits to leading Gen AI websites in H1

ChatGPT's app reached a record 640.68 million monthly active users in June 2026, up 2.2% from May and 24% year over year. Over the past 37 months, ChatGPT's monthly active users have declined only three times.

Visits from Japan to Gen AI websites grew by 355% in June compared to December 2024.

@jacoblabsai 👍

@Similarweb My bad, I guess I misread that lol That makes a whole lot of sense... In that case, that's very impressive. Hope they all continue to grow

Dang, this is insane I would have expected ChatGPT and Claude to be #1 and #2?? If not them.... who is #1??? 🤔

Ranking of leading Gen AI websites in the list of top-visited sites, June 2026: #5 ChatGPT (no change from May) #12 Gemini (no change from May) #34 Claude (+2) #79 DeepSeek (-4) #142 Grok (-20) #284 Perplexity (-49)