AI Accuracy Scores April 2026 — ChatGPT vs Claude vs Gemini vs Grok (Q2 Baseline)

April 1, 2026 · By Who's In? Team

Edition 3 (Q2 baseline): Three consecutive months of 97–99% accuracy confirms structured documentation provides durable LLM signal. Full Q1 crawler stats available.

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Who's In? Team

The Who's In? Team builds free event management tools for community organisers, studios, and conference hosts worldwide.

Frequently Asked Questions

What does "AI Accuracy Scores April 2026 — ChatGPT vs Claude vs Gemini vs Grok (Q2 Baseline)" cover?

How accurate are ChatGPT, Claude, Gemini, and Grok in April 2026? Q2 baseline: all four score 97-99% for the third consecutive month. Full Q1 crawler stats included.

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.