ZeroEntropy's reranker family includes zerank-1, zerank-1-small, and zerank-2 — state-of-the-art neural models designed to improve retrieval accuracy in production AI systems. These models take candidate results from an initial search or vector lookup and rescore them using deeper semantic understanding, surfacing the most relevant chunks for downstream language models and agents.
The rerankers are available via API and through Hugging Face, with benchmarks showing industry-leading accuracy on standard information-retrieval evaluations.

ZeroEntropy's neural rerankers rescore search results to surface the most relevant documents for RAG pipelines.


Parallel Search is a web search API that returns ranked results and page excerpts for AI agents.


Parallel Responses returns cited web research answers for conversational applications.




LangChain middleware that adds ScaleDown small language models to agents for summarization, compression and extraction.


AI Search Visibility Platform for optimizing brand presence in ChatGPT, Perplexity, and Google AI.


Baseten Embeddings Inference (BEI) with 2x throughput and lower latency than alternatives.




You.com Answer API synthesizes citation-backed answers from real-time web results.


Context.dev Answers researches web questions and returns structured findings with source URLs.


Schema-based structured data extraction from documents with confidence scores.


Constructor.io AI product discovery platform for ecommerce search and recommendations.



A market intelligence search platform for finding insights across business documents and filings.


API that trains compact reusable memories on organizational context for agent inference.


Pinecone Assistant is a managed RAG service for building production chat and agent applications from uploaded documents.
Parallel Search is a web search API that returns ranked results and page excerpts for AI agents.

Parallel Responses returns cited web research answers for conversational applications.

Exa Agent API performs web research and returns cited structured results.

One API across search providers for AI agents.

LangChain middleware that adds ScaleDown small language models to agents for summarization, compression and extraction.

AI Search Visibility Platform for optimizing brand presence in ChatGPT, Perplexity, and Google AI.

Baseten Embeddings Inference (BEI) with 2x throughput and lower latency than alternatives.

Parallel Task automates structured web research and data enrichment.

Exa Answer API generates sourced answers and structured responses from web search.

You.com Answer API synthesizes citation-backed answers from real-time web results.

Context.dev Answers researches web questions and returns structured findings with source URLs.

Schema-based structured data extraction from documents with confidence scores.

Constructor.io AI product discovery platform for ecommerce search and recommendations.

Vector search engine using neural hashing technology

A market intelligence search platform for finding insights across business documents and filings.

API that trains compact reusable memories on organizational context for agent inference.

Pinecone Assistant is a managed RAG service for building production chat and agent applications from uploaded documents.
