Model reference · open weights

nomic-embed-text-unsupervised

Embeddings nomic-ai Embeddings 1 build Open weights 593 dl/mo

nomic-embed-text-unsupervised is an open-weight embedding model from nomic-ai. nomic-embed-text-v1-unsupervised (BF16) weighs 547 MB; the smallest configuration that runs it is RTX 3060 12 GB.

  • nomic-embed-text-unsupervised is a text encoder developed by nomic-ai for the sentence-similarity task.
  • It is an 8192-token context length model trained on English text and released under the apache-2.0 license.
  • The card identifies it as a checkpoint from contrastive pretraining intended to open-source training artifacts from the Nomic Embed Text tech report.

Summary of the nomic-ai/nomic-embed-text-v1-unsupervised model card, 2026-10-01

What it is

Released bynomic-ai
Released2024-01-15
VRAM547 MB for the weights

What it runs on

Memory and cards for nomic-embed-text-v1-unsupervised (BF16)

547 MBweights, file size
1.1 GBruntime overhead
CardRunsMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What nomic-ai says about nomic-embed-text-unsupervised

Read the model card

nomic-embed-text-v1-unsupervised is 8192 context length text encoder. This is a checkpoint after contrastive pretraining from multi-stage contrastive training of the final model. The purpose of releasing this checkpoint is to open-source training artifacts from our Nomic Embed Text tech report here

If you want to use a model to extract embeddings, we suggest using nomic-embed-text-v1.

Join the Nomic Community

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

Benchmarks

Reported results

As published on the model card: the maker's own numbers, not measured by AxForge.

TaskDatasetMetricScore
ClassificationMTEB AmazonCounterfactualClassification (en)accuracy76.985
ClassificationMTEB AmazonCounterfactualClassification (en)ap39.472
ClassificationMTEB AmazonCounterfactualClassification (en)f170.592
ClassificationMTEB AmazonPolarityClassificationaccuracy87.540
ClassificationMTEB AmazonPolarityClassificationap83.161
ClassificationMTEB AmazonPolarityClassificationf187.523
ClassificationMTEB AmazonReviewsClassification (en)accuracy46.808
ClassificationMTEB AmazonReviewsClassification (en)f146.263
RetrievalMTEB ArguAnamap_at_130.583
RetrievalMTEB ArguAnamap_at_1046.170
RetrievalMTEB ArguAnamap_at_10047.115
RetrievalMTEB ArguAnamap_at_100047.121
RetrievalMTEB ArguAnamap_at_341.489
RetrievalMTEB ArguAnamap_at_544.046
RetrievalMTEB ArguAnamrr_at_130.939
RetrievalMTEB ArguAnamrr_at_1046.289
RetrievalMTEB ArguAnamrr_at_10047.241
RetrievalMTEB ArguAnamrr_at_100047.247
RetrievalMTEB ArguAnamrr_at_341.596
RetrievalMTEB ArguAnamrr_at_544.149
RetrievalMTEB ArguAnandcg_at_130.583
RetrievalMTEB ArguAnandcg_at_1054.812
RetrievalMTEB ArguAnandcg_at_10058.605
RetrievalMTEB ArguAnandcg_at_100058.753
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