The Engine That Powers Human-Level Search

ZeroEntropy delivers state-of-the-art rerankers and embeddings for your retrieval stack. Or use our end-to-end search engine, from raw documents to top results.

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One API. Human-Like Accuracy. Live in a Day.

One API. Human-Like Accuracy. Live in a Day.

One API. Human-Like Accuracy. Live in a Day.

Built-In Reranking: Combines dense, sparse, and reranked retrieval in a single API

One API for cutting-edge retrieval —

live in a day

Blazing Fast: Optimized for low latency and instant relevance

Accuracy and latency

improve automatically

Self-Improving: Learns from every query—no tuning required

No system to maintain,

saving weeks of engineering

Context-Aware: Understands user intent and adapts dynamically

Free your team to focus —

ZeroEntropy does the heavy lifting

Learn More

Use Cases

Use Cases

Use Cases

Learn More

Case Study

Case Study

Case Study

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Case Study

Case Study

Case Study

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

Case Study

Case Study

Case Study

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Problem: Poor relevance and high latency from vector DB + reranker stack.
Solution: Switched to ZeroEntropy’s unified API with built-in reranker.
Result:

  • 4x more relevant results

  • 40% lower latency

  • Zero maintenance


“It finds what our lawyers actually mean—not just what they type.”

Case Study

Case Study

Case Study

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

Problem: Inaccurate, hard-to-tune search for clinical queries.
Solution: ZeroEntropy auto-adapted to medical language and user intent.
Result:

  • 85% accuracy in physician tests

  • 0 tuning hours

  • HIPAA-compliant deployment


“It just understands clinical language.”

ZeroEntropy Background

Seriously Secure

Seriously Secure

Seriously Secure

ZeroEntropy is built with enterprise-grade security at its core. From SOC 2 Type II compliance to HIPAA readiness, we protect your data with the highest standards — so you can focus on building, not worrying.

ZeroEntropy SOC2
ZeroEntropy HIPPA
ZeroEntropy Background
1K

Developers

1M

Queries

1M

Documents

1B

Tokens

ZeroEntropy Background
1K

Developers

1M

Queries

1M

Documents

1B

Tokens

ZeroEntropy Background
1K

Developers

1M

Queries

1M

Documents

1B

Tokens

Deployment Options

ZeroEntropy Self-Serve

ZeroEntropy Self-Serve

ZeroEntropy Self-Serve

Plug-and-play access. Instantly start using ZeroEntropy via our public API.

Plug-and-play access. Instantly start using ZeroEntropy via our public API.

Plug-and-play access. Instantly start using ZeroEntropy via our public API.

Start Now

Test ZeroEntropy Reranker Model

Test ZeroEntropy Reranker Model

Test ZeroEntropy Reranker Model

Be the first to test our newest models,

agentic search capabilities, and cutting-edge retrieval features.

Be the first to test our newest models, agentic search capabilities, and cutting-edge retrieval features.

Be the first to test our newest models, agentic search capabilities, and cutting-edge retrieval features.

Test the Model

Secure & Custom
Deployment

Secure & Custom
Deployment

Secure & Custom
Deployment

Run ZeroEntropy in your VPC or on-prem. Designed for teams with strict compliance or data residency needs.

Run ZeroEntropy in your VPC or on-prem. Designed for teams with strict compliance or data residency needs.

Run ZeroEntropy in your VPC or on-prem. Designed for teams with strict compliance or data residency needs.

Book a Demo

Build

Your Own Search

Weeks lost stitching vector DBs, pipelines, and rerankers

Weeks lost stitching vector DBs,

pipelines, and rerankers

Endless tuning, testing, and debugging cycles

Endless tuning, testing,

and debugging cycles

Each fix adds complexity, maintenance, and latency

Each fix adds complexity,

maintenance, and latency

Teams reinvent the wheel—still miss on accuracy

Teams reinvent the wheel—still

miss on accuracy

With

One API for cutting-edge retrieval — live in a day

One API for cutting-edge retrieval —

live in a day

Accuracy and latency improve automatically

Accuracy and latency

improve automatically

No system to maintain, saving weeks of engineering

No system to maintain,

saving weeks of engineering

Free your team to focus — ZeroEntropy does the heavy lifting

Free your team to focus —

ZeroEntropy does the heavy lifting

Put Your Retrieval in Autopilot Now

Put Your Retrieval in Autopilot Now

Put Your Retrieval in Autopilot Now

Work directly with the founders to shape the future of agentic retrieval.

Work directly with the founders to shape the future of agentic retrieval.

Work directly with the founders to shape the future of agentic retrieval.

Talk to a Founder

Common Questions

1. What makes ZeroEntropy different from traditional search engines?

Traditional search uses static keyword or semantic matching. ZeroEntropy is optimized for retrieval quality out of the box — combining dense, sparse, and reranked relevance in a single API. We treat every query as a learning opportunity: • You get state-of-the-art relevance, not a bag-of-words match. • You don’t need to tune BM25 weights, vector thresholds, or rerank configs — we handle that. • You don’t maintain an infra Frankenstein of vector DBs, LLMs, pipelines — we unify it.

2. Does ZeroEntropy handle PDF parsing and chunking?

3. How does ZeroEntropy process the data I send? Can you deploy on premise?

4. Is there a free trial?

5. What is the query latency?

6. What kind of support is offered?

7. Is it easy to integrate with my product?

1. What makes ZeroEntropy different from traditional search engines?

Traditional search uses static keyword or semantic matching. ZeroEntropy is optimized for retrieval quality out of the box — combining dense, sparse, and reranked relevance in a single API. We treat every query as a learning opportunity: • You get state-of-the-art relevance, not a bag-of-words match. • You don’t need to tune BM25 weights, vector thresholds, or rerank configs — we handle that. • You don’t maintain an infra Frankenstein of vector DBs, LLMs, pipelines — we unify it.

2. Does ZeroEntropy handle PDF parsing and chunking?

3. How does ZeroEntropy process the data I send? Can you deploy on premise?

4. Is there a free trial?

5. What is the query latency?

6. What kind of support is offered?

7. Is it easy to integrate with my product?

1. What makes ZeroEntropy different from traditional search engines?

Traditional search uses static keyword or semantic matching. ZeroEntropy is optimized for retrieval quality out of the box — combining dense, sparse, and reranked relevance in a single API. We treat every query as a learning opportunity: • You get state-of-the-art relevance, not a bag-of-words match. • You don’t need to tune BM25 weights, vector thresholds, or rerank configs — we handle that. • You don’t maintain an infra Frankenstein of vector DBs, LLMs, pipelines — we unify it.

2. Does ZeroEntropy handle PDF parsing and chunking?

3. How does ZeroEntropy process the data I send? Can you deploy on premise?

4. Is there a free trial?

5. What is the query latency?

6. What kind of support is offered?

7. Is it easy to integrate with my product?

Get started with

Animation of the ZeroEntropy logo
Animation of the ZeroEntropy logo

Our retrieval engine runs autonomously with the 

accuracy of a human-curated system.

GitHub

Discord

Slack

Enterprise

Contact us for a custom enterprise solution with custom pricing

Contact us for a custom enterprise solution with custom pricing

Contact us for a custom enterprise solution with custom pricing

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