llms.txt in 2026: Honest Guide for WordPress Devs (Hype vs. Reality) Quick Answer: llms.txt is a Markdown file at your domain root (e.g., yoursite.com/llms.txt ) that serves as a curated index for generative AIs. Proposed by Jeremy Howard in 2024, adopted by ~10% of websites today — but as of Q1 2026, no major AI provider (OpenAI, Google, Anthropic, Meta) has publicly confirmed reading it in production . Still worth implementing: 30-minute one-time setup, free insurance for the next 18 months of AI search evolution. The Reality Check Most Guides Skip You searched for llms.txt generator because someone pitched it as "the next robots.txt for the AI era" — or a client asked whether it matters and you weren't sure how to answer. Here's the honest position: llms.txt is not a cheat code. In Q1 2026 data, no major AI provider has publicly confirmed reading it in production. Independent studies of tens of thousands of cited URLs find no statistically significant uplift in AI citations from llms.txt adoption.…