Best Vectara Neural Search Alternatives & Competitors in 2025

Open-source platform for LLMOps,Define your AI-native Apps

Open Source

AI-powered search engine

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Haystack is an open source NLP framework to build applications with Transformer models and LLMs.

Open Source

Vector database built for scalable similarity search Open-source, highly scalable, and blazing fast.

Open Source free

Welcome to Weaviate

Annoy is a C++ library with Python bindings to search for points in space that are close to a given query point.

Framework for building applications with LLMs through composability

Build a better writing habit

Qdrant is a high-performance, massive-scale Vector Database for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

Open Source freemium

Store, search, rank and organize big data

Open Source

Minigpt-4

Open Source

EVA AI-Relational Database System | SQL meets Deep Learning

Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

Open Source