Haystack

Haystack is an open-source NLP (Natural Language Processing) framework that allows users to apply the latest NLP technology to their own data. It provides a pipeline architecture for implementing production-ready semantic search, question answering, summarization, and document ranking for various NLP applications. The tool supports the use of pre-trained transformer models like GPT-3, BERT, RoBERTa, and DPR. Haystack also offers flexibility in terms of the document store, allowing users to use Elasticsearch, OpenSearch, or plain SQL. Additionally, it provides the option to boost search performance with vector databases like Pinecone, Milvus, FAISS, or Weaviate. The tool is scalable, enabling the development of applications that can handle millions of documents. Haystack provides end-to-end building blocks for the entire product development cycle and allows users to combine nodes into flexible and scalable pipelines. It also offers community support through Discord and provides regular updates on news and events.