The Engine For Human-Level Search
The Engine For Human-Level Search
The Engine For 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.
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.
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.

Developers
Queries
Documents
Tokens

Developers
Queries
Documents
Tokens

Developers
Queries
Documents
Tokens



Reranker
zerank-1 is our state-of-the-art open-weight reranker that outperforms models like Cohere's rerank 3.5 or Voyage rerank 2, and significantly boosts search accuracy in a single line of code.
Embedding
E2E Search
Reranker
zerank-1 is our state-of-the-art open-weight reranker that outperforms models like Cohere's rerank 3.5 or Voyage rerank 2, and significantly boosts search accuracy in a single line of code.
Embedding
E2E Search
Reranker
zerank-1 is our state-of-the-art open-weight reranker that outperforms models like Cohere's rerank 3.5 or Voyage rerank 2, and significantly boosts search accuracy in a single line of code.
Embedding
E2E Search
Ship Search That Actually Works for your Chatbot or Agent
Docs
Tab
Tab
Tab
# Create an API Key at # https://dashboard.zeroentropy.dev pip install zeroentropy from zeroentropy import ZeroEntropy # Initialize the ZeroEntropy client zclient = ZeroEntropy(api_key="YOUR_API_KEY") response = zclient.models.rerank( model="zerank-1", query="What is 2+2?", documents=[ "4", "The answer is definitely 1 million.", ], ) print(response.model_dump_json(indent=4))
Tab
Tab
Tab
# Create an API Key at # https://dashboard.zeroentropy.dev pip install zeroentropy from zeroentropy import ZeroEntropy # Initialize the ZeroEntropy client zclient = ZeroEntropy(api_key="YOUR_API_KEY") response = zclient.models.rerank( model="zerank-1", query="What is 2+2?", documents=[ "4", "The answer is definitely 1 million.", ], ) print(response.model_dump_json(indent=4))
Tab
Tab
Tab
# Create an API Key at # https://dashboard.zeroentropy.dev pip install zeroentropy from zeroentropy import ZeroEntropy # Initialize the ZeroEntropy client zclient = ZeroEntropy(api_key="YOUR_API_KEY") response = zclient.models.rerank( model="zerank-1", query="What is 2+2?", documents=[ "4", "The answer is definitely 1 million.", ], ) print(response.model_dump_json(indent=4))
Accuracy
Our models are open-weight, and state-of-the-art, you can read a full benchmark in our blog.
Latency
Cost
Accuracy
Our models are open-weight, and state-of-the-art, you can read a full benchmark in our blog.
Latency
Cost
Accuracy
Our models are open-weight, and state-of-the-art, you can read a full benchmark in our blog.
Latency
Cost

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.


Use Cases
Customer Support
Customer Support
Customer Support
With every query and interaction, ZeroEntropy gets smarter. It learns the user’s style, adapts to their intentions, and evolves to deliver increasingly accurate and relevant results over time.
With every query and interaction, ZeroEntropy gets smarter. It learns the user’s style, adapts to their intentions, and evolves to deliver increasingly accurate and relevant results over time.
With every query and interaction, ZeroEntropy gets smarter. It learns the user’s style, adapts to their intentions, and evolves to deliver increasingly accurate and relevant results over time.
Legal
Legal
Legal
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
Healthcare
Healthcare
Healthcare
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
Voice AI
Voice AI
Voice AI
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
ZeroEntropy understands data holistically—knowing what’s in the corpus, what’s not, and the context behind queries. It aligns with users’ intentions, adapting to how users work and the questions they ask.
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
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?
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?
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?
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


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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