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.

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Full Benchmark

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.

Try it Now

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.

Try it Now

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.

Try it Now

Embedding

E2E Search

Ship Search That Actually Works for your Chatbot or Agent

Docs

Rerank

Embed

# 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))

Rerank

Embed

# 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))

Rerank

Embed

# 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

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

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

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

Voice AI

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.

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.

Start Now

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