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Inside Mixedbread: How We Built Multimodal Late-Interaction at Billion Scale

Inside Mixedbread: How We Built Multimodal Late-Interaction at Billion Scale

Technical deep-dive into Mixedbread Search - the first production-ready late-interaction search with native multimodality. Learn how we achieve sub-50ms latency on billion-scale document collections.

EngineeringResearchProduct
January 21, 2026
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11 min read
Mixedbread Team
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maxsim-cpu: Maximising Maxsim Efficiency

maxsim-cpu: Maximising Maxsim Efficiency

Introducing maxsim-cpu, a much faster way to compute the late interaction's MaxSim operator on modern CPU hardware, optimised for both x86 and Mac ARM.

ResearchEngineering
9 min readJuly 15, 2025
Baking in Performance - Dynamic Batching with Batched

Baking in Performance - Dynamic Batching with Batched

Learn how dynamic batching boosts GPU efficiency in machine learning. We introduce Batched, our open-source library that makes it easy to implement dynamic batching and improve performance in your ML projects.

Engineering
7 min readSeptember 16, 2024
Getting Better with Baguetter - New Retrieval Testing Framework

Getting Better with Baguetter - New Retrieval Testing Framework

Baguetter is our new open-source retrieval experimentation framework that combines sparse, dense, and hybrid retrieval into a single, easy-to-use interface. It enables fast benchmarking, implementation, and testing of new search methods.

Engineering
7 min readAugust 23, 2024
BM𝒳: A Freshly Baked Take on BM25

BM𝒳: A Freshly Baked Take on BM25

Introducing BMX, an iteration on the industry standard BM25 search algorithm. Through the incorporation of entropy-weighted query-document similarity and weighted query augmentation, the algorithm can increase search performance on the most relevant information retrieval benchmarks.

ResearchEngineering
15 min readAugust 12, 2024