Decoding Anthropic's IPO Through Similarweb Data
Our pre-IPO primer uses Similarweb web and app data to show how claude.ai and the Claude apps grew, whether the users stayed, and where the business is heading ahead of a potential record IPO.
What's in the report
We've tracked claude.ai usage monthly since 2023.
Across 66 pages and 29 exhibits, the primer tracks claude.ai and the Claude apps against ChatGPT, Gemini, DeepSeek, Grok and Perplexity, monthly through August 2026.
- Where demand is coming from. Consumer, developer and enterprise demand, each read through its own signal: sign-ups and upgrades, Claude Code, and corporate logins.
- Whether the users stayed. Cohort retention through a surge driven by a Super Bowl ad and a major news cycle, compared against ChatGPT and Perplexity.
- Where the audience is shifting. Share, audience overlap and acquisition channels across six AI peers, plus the metrics to watch before a listing.
Six-month retention rose to 45% from 25%
Claude's newest cohorts retain better than its earliest ones, even as users grew 6x. The gap to ChatGPT narrowed from 38pt to 14pt.
Traffic share rose to 9.6% from 2.0%
Across six leading AI sites, in twelve months. Paid channels drove just 0.46% of visits, vs. 3.5% at chatgpt.com and 6.8% at Gemini
Enterprise logins up 4x since March
SSO logins, our proxy for enterprise seats, have risen every month since January. Claude Code on the web shows the same pattern
Omri Shtayer
VP, GM Investor Solutions
Aria Ertefaie
Principal Data Analyst
