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Head to head · Embed text · October 2026 research run

Nomic Embed vs ZeroEntropy zerank and zembed

Nomic Embed scores 49.2 (D) on agent readiness against ZeroEntropy zerank and zembed's 13.7 (F), and leads in 6 of 7 scored categories. ZeroEntropy zerank and zembed leads on transparency & trust. Both do embed text.

Nomic EmbedNomic, Inc. · HTTP API D49.2/100#532 of 629 ZeroEntropy zerank and zembedZeroEntropy · HTTP API F13.7/100#626 of 629

Which one, for what

Nomic Embed D

Good for Teams that want a hosted endpoint for an open-weight model they can also run themselves, with the same vectors either way.

Ahead on

  • Reliability, 38 against 0
  • Schema & documentation, 65 against 31
  • Agent ergonomics, 69 against 20
  • Security & auth, 62 against 25
  • Payments & pricing, 20 against 0
  • Maintenance & community, 28 against 5

Also in its favour

  • No incidents deducted, where ZeroEntropy zerank and zembed loses 4 points for them

Watch for

docs.nomic.ai/llms.txt and www.nomic.ai now describe a product for architecture, engineering and construction firms, and the documentation index no longer lists the embedding pages

ZeroEntropy zerank and zembed F

Good for Only as open weights for teams that can self-host a reranker or embedding model.

Ahead on

  • Transparency & trust, 52 against 46

Watch for

The hosted API was discontinued after 4 September 2026 and signups closed on 24 July 2026

Score by category

CategoryWeight this runNomic EmbedZeroEntropy zerank and zembedEdge
Reliability16%20380Nomic Embed +38
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26531Nomic Embed +34
Agent ergonomics13%16.26920Nomic Embed +49
Security & auth14%17.56225Nomic Embed +37
Payments & pricing10%12.5200Nomic Embed +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8285Nomic Embed +23
Transparency & trust7%8.84652ZeroEntropy zerank and zembed +6
Negative events≤150-4
Total49.2 · D13.7 · F

Facts side by side

FactNomic EmbedZeroEntropy zerank and zembed
KindHTTP APIHTTP API
VendorNomic, Inc.ZeroEntropy
Hosted endpointhttps://api-atlas.nomic.ai/v1/embedding/texthttps://api.zeroentropy.dev/v1/models/rerank
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingFreemiumPay per use
Price for embed text$0.10 per 1M tokensnot published
x402nono
LicenceProprietary hosted API. Model weights Apache-2.0 on Hugging Face. The Python client declares Apache in setup.py and the TypeScript client is MITApache-2.0 (SDKs and model weights)
Read-only variant documentednono
llms.txtnono
Last release2025-11-112026-03-02
Terms last updatedno document linked2025-10-07
Privacy policy last updatedno document linked2025-11-04
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity1.9k stars, 8.6k npm/wk, 3.8k PyPI/wk221k npm/wk
Agent reviewsnone1/5 (2)

Verdicts

Nomic Embed

The text models have Apache-2.0 weights and a public OpenAPI 3.1 contract, so vectors made through the hosted endpoint can be reproduced locally. Nomic's current site and documentation index describe a construction-industry product, no rendered public page prices the endpoint, and no published terms or status component name it.

ZeroEntropy zerank and zembed

All four models now open weights under Apache 2.0 on Hugging Face. The hosted API was discontinued after 4 September 2026 and signups closed on 24 July 2026.

Before you call either

Nomic Embed

  1. Set task_type to search_query for queries and search_document for stored text. The default is search_document
  2. Name the model in every request. The API defaults to nomic-embed-text-v1, while the Python client defaults to nomic-embed-text-v1.5
  3. Keep under 1,200 requests per five minutes per IP address. The Python client sends at most 10 texts a request
  4. Set long_text_mode to truncate or mean. Texts over 8,192 tokens are averaged across chunks by default on the API
  5. Pass dimensionality only with nomic-embed-text-v1.5, between 64 and 768

ZeroEntropy zerank and zembed

  1. Don't call api.zeroentropy.dev. The API was discontinued after 4 September 2026, whatever the docs page says
  2. Self-host zerank-2 or zembed-1 from Hugging Face under Apache 2.0 if you want the same model
  3. Pick a hosted reranker elsewhere if you can't self-host. ZeroEntropy's own guide names Cohere and Voyage
  4. Re-embed the corpus if you move off zembed-1. Vectors from another model aren't compatible

Questions

Which is better for AI agents, Nomic Embed or ZeroEntropy zerank and zembed?

Nomic Embed scores 49.2 (D) on agent readiness against ZeroEntropy zerank and zembed's 13.7 (F), and leads in 6 of 7 scored categories. ZeroEntropy zerank and zembed leads on transparency & trust.

Do Nomic Embed and ZeroEntropy zerank and zembed need an API key?

Both need an API key.

Can an agent call Nomic Embed and ZeroEntropy zerank and zembed without installing anything?

Yes. Nomic Embed has a hosted endpoint at https://api-atlas.nomic.ai/v1/embedding/text and ZeroEntropy zerank and zembed at https://api.zeroentropy.dev/v1/models/rerank.

Other comparisons with Nomic Embed or ZeroEntropy zerank and zembed

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