Free Lesson

The New Frontier of AI Search

Part of The Frontier of AI Search

Hosted by Trey Grainger and Doug Turnbull

Tue, Jun 30, 2026

4:00 PM UTC (1 hour 15 minutes)

Virtual (Zoom)

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AI-Powered Search: Modern Retrieval for Humans & Agents
Trey Grainger and Doug Turnbull
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What you'll learn

Hot trends at the bleeding edge of AI Search

We'll survey some more exciting topics covered in July's AI-Powered Search: Modern Retrieval for Humans & Agents course.

LLM as Judge + Hypencoders (hypernetworks for retrieval)

A foretaste of the "Search Evals vs. LLM as a Judge" & "Hypencoders" course sessions by René Kriegler & Andreas Eriksen.

Late Interaction / Multivector search + Semantic IDs

Glimpse at instructors Amélie Chatelain & Kim Falk's course topics: "A Late Interaction Field Guide" and "Semantic IDs".

Wormhole Vectors + Semantic Knowledge Graphs

Introduction to these emerging techniques taught in the course by Trey Grainger for advanced query understanding.

Agentic Search + Modern RAG

An overview of Doug Turnbull's expert take on implementing Modern RAG and Agentic Search, as covered in the course.

Why this topic matters

Information Retrieval is advancing at an accelerating pace. In our month-long "AI-Powered Search: Modern Retrieval for Humans & Agents" course, we work hard to cover both the tried-and-true AI Search fundamentals and bring additional experts as guest instructors on emerging hot topics. This session is a survey of the latter - emerging topics you need to know about on the new Frontier of AI Search.

You'll learn from

Trey Grainger

Author, AI-Powered Search

Trey Grainger is lead author of the book AI-Powered Search (Manning 2025) and founder of Searchkernel, a software consultancy building the next generation of AI-powered search. He also serves as a technical advisor at OpenSource Connections.


He previously served as CTO of Presearch, a decentralized web search engine, and as Chief Algorithms Officer and SVP of Engineering at Lucidworks, a search company whose technology powers hundreds of the world’s leading organizations. Trey is also co-author of the book Solr in Action (Manning 2014), as well as over a dozen other publications including books, journals, and research papers. Trey has 18 years of experience in search and data science focused on building self-learning search platforms integrating the most successful AI Search techniques.


Trey teaches AI Search in the course AI-Powered Search: Modern Retrieval for Humans & Agents with Doug Turnbull.

Doug Turnbull

Co-author of AI-Powered Search

In 2012, Doug got bit by the search bug and he's still trying to keep up. From full-text search, to Learning to Rank models, to search agents that generate their own code, he knows the endless landscape first hand. Yet Doug wants to deeply understand the what / how / why, and help teams use these technologies practically, distinguishing hype from reality.

He’s led search at Reddit, Shopify, and Wikipedia, authored Relevant Search and AI Powered Search, and advised 100+ organizations over the years - all in pursuit of the same question: how does search actually work?

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