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Open-weight model · Sentence similarity

nomic-embed-text-v1

by Nomic AI nomic-ai/nomic-embed-text-v1

nomic-embed-text-v1 is 8192 context length text encoder that surpasses OpenAI text-embedding-ada-002 and text-embedding-3-small performance on short and long context tasks. Exciting Update!: nomic-embed-text-v1 is now multimodal!

Parameters137M
Context8,192
Weights1.8 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads3.3M

Runs On

What it takes to serve nomic-embed-text-v1 (137M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 0.3 GB 0.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.1 GB 0.2 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.1 GB 0.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

SAVRN's Notes on nomic-embed-text-v1

For an embedding model the memory line is beside the point: 0.3 GB at 16-bit against one MI300X with 192 GB, the cheapest listed setup at $1.85 an hour. Nobody reserves that card for one copy of a 137M parameter encoder; vectors per hour, not fit, is the number to measure. The 8,192 token window is the reason to choose it over a shorter encoder: a whole contract goes in as one vector, not a stack of fragments.

Check the prefix rule first: the publisher's card requires a task instruction on every input, one form for the documents you store and another for the queries you ask, and a pipeline that omits them is not running the model as published. Apache 2.0 then lets you embed customer data commercially and ship a fine-tuned copy with the notices kept. Weights updated April 7, 2026, in safetensors, onnx and pytorch.

Model Card

By Nomic AI, published under apache-2.0, revision 3ac47f125a41.

nomic-embed-text-v1: A Reproducible Long Context (8192) Text Embedder

Blog | Technical Report | AWS SageMaker | Atlas Embedding and Unstructured Data Analytics Platform

nomic-embed-text-v1 is 8192 context length text encoder that surpasses OpenAI text-embedding-ada-002 and text-embedding-3-small performance on short and long context tasks.

Performance Benchmarks

Name SeqLen MTEB LoCo Jina Long Context Open Weights Open Training Code Open Data
nomic-embed-text-v1 8192 62.39 85.53 54.16 Yes Yes Yes
jina-embeddings-v2-base-en 8192 60.39 85.45 51.90 Yes No No
text-embedding-3-small 8191 62.26 82.40 58.20 No No No
text-embedding-ada-002 8191 60.99 52.7 55.25 No No No

Exciting Update!: nomic-embed-text-v1 is now multimodal! nomic-embed-vision-v1 is aligned to the embedding space of nomic-embed-text-v1, meaning any text embedding is multimodal!

Usage

Important: the text prompt must include a task instruction prefix, instructing the model which task is being performed.

Read the full model card (824 words)

Configuration

Architecture
NomicBertModel
Context length (tokens)
8,192
Layers
12
Hidden size
768
Feed-forward size
3,072
Attention heads
12
Head dimension
64
Vocabulary size
30,528
Stored precision
float32
Model type
nomic_bert

Identity and Version

Repository
nomic-ai/nomic-embed-text-v1
Publisher
Nomic AI
Task
Sentence similarity
Modality
Text
Library
sentence-transformers
Parameters
137M parameters
Languages
en
Revision
3ac47f125a41961d13b397d0332866be2f9152e1
First published
2024-01-31
Last updated
2026-04-07

Files and Weights

15 files, 1.8 GB in total. The weights are 4 files totalling 1.8 GB in bin, onnx, safetensors.

Weights4 files · 1.8 GB
Configuration6 files · 3.0 KB
Tokenizer3 files · 944.1 KB
Documentation1 file · 71.3 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights546.9 MB 47e396424a08
onnx/model.onnxWeights547.6 MB 347440e93b5e
onnx/model_quantized.onnxWeights138.4 MB b7941066a652
pytorch_model.binWeights547.0 MB 9fc78c00133a
1_Pooling/config.jsonConfiguration270 B
config.jsonConfiguration2.0 KB
config_sentence_transformers.jsonConfiguration128 B
modules.jsonConfiguration349 B
sentence_bert_config.jsonConfiguration54 B
special_tokens_map.jsonConfiguration125 B
README.mdDocumentation71.3 KB
.gitattributesRepository1.5 KB
tokenizer.jsonTokenizer711.4 KB
tokenizer_config.jsonTokenizer1.2 KB
vocab.txtTokenizer231.5 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
1.8 GB
Download from Nomic AI

Released by Nomic AI through its official repository on Hugging Face. Read the license.

Built From

Evaluations

Each result is shown as reported, with the conditions its reporter stated. None is a SAVRN measurement. A comparison lines two results up only when their configuration, unit and setup are all stated and identical.

BenchmarkConditionsResultReported byRevisionDate
MTEB AmazonCounterfactualClassification (en) Configuration enTask ClassificationMetric accuracyComparison conditions not established 76.8507 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonCounterfactualClassification (en) Configuration enTask ClassificationMetric apComparison conditions not established 40.5922 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonCounterfactualClassification (en) Configuration enTask ClassificationMetric f1Comparison conditions not established 71.0163 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonPolarityClassification Configuration defaultTask ClassificationMetric accuracyComparison conditions not established 91.5189 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonPolarityClassification Configuration defaultTask ClassificationMetric apComparison conditions not established 88.5035 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonPolarityClassification Configuration defaultTask ClassificationMetric f1Comparison conditions not established 91.5034 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonReviewsClassification (en) Configuration enTask ClassificationMetric accuracyComparison conditions not established 47.364 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB AmazonReviewsClassification (en) Configuration enTask ClassificationMetric f1Comparison conditions not established 46.7271 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_1Comparison conditions not established 25.178 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_10Comparison conditions not established 40.244 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_100Comparison conditions not established 41.322 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_1000Comparison conditions not established 41.331 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_3Comparison conditions not established 35.017 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric map_at_5Comparison conditions not established 37.99 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_1Comparison conditions not established 25.605 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_10Comparison conditions not established 40.422 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_100Comparison conditions not established 41.507 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_1000Comparison conditions not established 41.516 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_3Comparison conditions not established 35.23 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric mrr_at_5Comparison conditions not established 38.15 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_1Comparison conditions not established 25.178 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_10Comparison conditions not established 49.258 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_100Comparison conditions not established 53.776 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_1000Comparison conditions not established 53.995 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_3Comparison conditions not established 38.429 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric ndcg_at_5Comparison conditions not established 43.803 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_1Comparison conditions not established 25.178 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_10Comparison conditions not established 7.831 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_100Comparison conditions not established 0.979 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_1000Comparison conditions not established 0.1 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_3Comparison conditions not established 16.121 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric precision_at_5Comparison conditions not established 12.29 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_1Comparison conditions not established 25.178 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_10Comparison conditions not established 78.307 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_100Comparison conditions not established 97.866 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_1000Comparison conditions not established 99.573 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_3Comparison conditions not established 48.364 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArguAna Configuration defaultTask RetrievalMetric recall_at_5Comparison conditions not established 61.451 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArxivClusteringP2P Configuration defaultTask ClusteringMetric v_measureComparison conditions not established 45.9303 nomic-ai
Publisher reported
Evaluated revision not stated
MTEB ArxivClusteringS2S Configuration defaultTask ClusteringMetric v_measureComparison conditions not established 36.6458 nomic-ai
Publisher reported
Evaluated revision not stated

Memory Requirements

PrecisionWeights in memory
As published1.8 GB
16-bit0.3 GB
8-bit0.1 GB
4-bit0.1 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Compare nomic-embed-text-v1

Questions About nomic-embed-text-v1

How much GPU memory does nomic-embed-text-v1 need?

About 0.3 GB at 16-bit and 0.1 GB at 4-bit: the weights (137M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run nomic-embed-text-v1 on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use nomic-embed-text-v1 commercially?

Yes. nomic-embed-text-v1 is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

What is nomic-embed-text-v1's context length?

8,192 tokens, from the maximum position embeddings in its published configuration.

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