The Search Relevance Conference
Created and organized by the search and AI experts at OpenSource Connections
Haystack Europe 2026
The next edition of Haystack will take place on 15th & 16th September in Berlin, Germany. Once again our venue will be the inclusive co-working space TUECHTIG.
Early Bird tickets are available until August 3rd.
September 14th
Haystack Trainings
September 15th & 16th
Haystack Conference
Trainings at Haystack Europe 2026
On September 14th, 2026 the Search and AI Experts at OpenSource Connections offer two half-day training courses:
- Building Modern Search Platforms for Humans and AI
LLMs as Judges for Search Result Quality
Courses can be booked individually or as one full day training.
OpenSource Connections is a Search and AI consultancy empowering the world’s search teams. We have created the Haystack conference in order to extend our internal discussions about search and AI to a larger community of practitioners.
Learn more about our consulting offerings: https://opensourceconnections.com
Speakers at Haystack US 2026
Agustín Bernardo
Superhuman
David Tippett
GitHub
Cem Aksoy
Yelp
Daniel Wrigley
OpenSource Connections
Trey Grainger
Searchkernel
Maëlly Dubois
Adelean
William Barber
turbopuffer
Ángel Maldonado
Empathy
Kevin M. Butler
KMW LLC
Tianxiao Wei
MongoDB
Kathleen DeRusso
Elastic
René Kriegler
OpenSource Connections
Jon Handler
Amazon Web Services
Tim Allison
Elasticsearch
Questions?
You want to learn more about the event, how you and your company can become a part of it? Just contact our team.
Haystack is the conference for improving search relevance. If you’re like us, you work to understand the shiny new tools or dense academic papers out there that promise the moon. Then you puzzle how to apply those insights to your search problem, in your search stack. But the path isn’t always easy, and the promised gains don’t always materialize.
Haystack is the conference for organizations where search, matching, and relevance really matters to the bottom line. For search managers, developers, relevance engineers & data scientists finding ways to innovate, see past the silver bullets, and share what actually has worked well for their unique problems. Please come share and learn!
Why we created the Haystack conference series.
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