Head to head · Embed text · October 2026 research run

Nomic Embed vs NVIDIA NeMo Retriever Embedding and Reranking NIMs

NVIDIA NeMo Retriever Embedding and Reranking NIMs scores 61 (C) on agent readiness against Nomic Embed's 49.2 (D), and leads in 6 of 7 scored categories. Nomic Embed leads on security & auth. Both do embed text.

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

  • Security & auth, 62 against 55

Also in its favour

  • A hosted endpoint, with nothing to install

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

NVIDIA NeMo Retriever Embedding and Reranking NIMs C

Good for Teams that already run NVIDIA GPUs and need embedding and reranking inside their own network, including page-image retrieval with the VL models.

Ahead on

  • Reliability, 53 against 38
  • Schema & documentation, 78 against 65
  • Payments & pricing, 40 against 20
  • Maintenance & community, 57 against 28
  • Transparency & trust, 71 against 46

Also in its favour

  • No key needed to call it

Watch for

The API has no authentication and no rate limiting. The security page leaves both to a proxy the deployer runs

Score by category

CategoryWeight this runNomic EmbedNVIDIA NeMo Retriever Embedding and Reranking NIMsEdge
Reliability16%203853NVIDIA NeMo Retriever Embedding and Reranking NIMs +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26578NVIDIA NeMo Retriever Embedding and Reranking NIMs +13
Agent ergonomics13%16.26973NVIDIA NeMo Retriever Embedding and Reranking NIMs +4
Security & auth14%17.56255Nomic Embed +7
Payments & pricing10%12.52040NVIDIA NeMo Retriever Embedding and Reranking NIMs +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.82857NVIDIA NeMo Retriever Embedding and Reranking NIMs +29
Transparency & trust7%8.84671NVIDIA NeMo Retriever Embedding and Reranking NIMs +25
Negative events≤1500
Total49.2 · D61 · C

Facts side by side

FactNomic EmbedNVIDIA NeMo Retriever Embedding and Reranking NIMs
KindHTTP APIHTTP API
VendorNomic, Inc.NVIDIA
Hosted endpointhttps://api-atlas.nomic.ai/v1/embedding/textno (local only)
TransportsHTTPHTTP
AuthAPI keyNone
PricingFreemiumFreemium
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 MITProprietary containers under the NVIDIA Software Licence Agreement and Product-Specific Terms for AI Products. Models carry their own licences, such as OpenMDW 1.1 for nvidia/nemotron-3-embed-1b and the NVIDIA Open Model Licence for the Llama Nemotron models
Read-only variant documentednono
llms.txtnono
Last release2025-11-112026-08-05
Terms last updatedno document linked2026-05-07
Privacy policy last updatedno document linkedno date given
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingyes
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/wk134k PyPI/wk

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.

NVIDIA NeMo Retriever Embedding and Reranking NIMs

Self-hosted containers with OpenAPI 3.1 files, typed request fields, five embedding output types and a dated end-of-life list. The API has no authentication or rate limiting of its own, production use needs an NVIDIA AI Enterprise licence at $4,500 a GPU a year, and the release notes carry no dates.

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

NVIDIA NeMo Retriever Embedding and Reranking NIMs

  1. Send input_type as query or passage on every embedding call. Asymmetric models return HTTP 400 without it, and the wrong value lowers retrieval accuracy per the docs
  2. Do not send dimensions and embedding_type together, and send only 2048 or nothing for dimensions on nvidia/nemotron-3-embed-1b
  3. Poll /v1/health/ready before the first call. The Docker health check can report unhealthy while the NIM is ready, per the 2.3 known issues
  4. Check the image tag on NGC before pulling. The guide uses nemotron-3-embed-1b:2.3, and NGC's record for that image listed tags up to 2.2.2 on 8 October 2026
  5. Put a proxy with authentication and TLS in front of port 8000, and sort /v1/ranking results yourself as the request has no top-n field

Questions

Which is better for AI agents, Nomic Embed or NVIDIA NeMo Retriever Embedding and Reranking NIMs?

NVIDIA NeMo Retriever Embedding and Reranking NIMs scores 61 (C) on agent readiness against Nomic Embed's 49.2 (D), and leads in 6 of 7 scored categories. Nomic Embed leads on security & auth.

Do Nomic Embed and NVIDIA NeMo Retriever Embedding and Reranking NIMs need an API key?

Nomic Embed needs an API key. NVIDIA NeMo Retriever Embedding and Reranking NIMs needs no key.

Can an agent call Nomic Embed and NVIDIA NeMo Retriever Embedding and Reranking NIMs without installing anything?

Nomic Embed has a hosted endpoint at https://api-atlas.nomic.ai/v1/embedding/text. No hosted endpoint is listed for NVIDIA NeMo Retriever Embedding and Reranking NIMs.

Other comparisons with Nomic Embed or NVIDIA NeMo Retriever Embedding and Reranking NIMs

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.