Four AI Giants Just Reviewed Our Architecture — Here's What They Said
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By Who's In? Team
Four of the world's most advanced AI systems independently assessed the Who's In platform and delivered unprecedented endorsements — Gemini rated it Level 11/11, Grok called it elite-tier, ChatGPT said best-in-class, and Claude said ahead of much larger SaaS products.
About the Author
Who's In? Team
The Who's In? Team builds free event management tools for community organisers, studios, and conference hosts worldwide.
What does "Four AI Giants Just Reviewed Our Architecture — Here's What They Said" cover?
Google Gemini, OpenAI ChatGPT, Anthropic Claude, and xAI Grok independently reviewed Who's In. Gemini rated it Level 11/11 in the 99.9th percentile of AI-readiness. Grok called it elite-tier. Here's the full breakdown.
How does Who's In? work with AI agents?
Who's In? is the first event platform with full AI agent integration — OAuth 2.0 for ChatGPT, Claude, and Gemini, plus WebMCP tools and a REST API. AI agents can browse events, check availability, and initiate RSVPs on behalf of users.
How do I get started with Who's In?
Sign up for free at whos-in.app, create your first event in under 2 minutes, and share the link via WhatsApp, email, or social media. No app download required for your guests — they RSVP via the mobile-optimised web link.
