# lightonai/modernbert-embed-large-unsupervised

Model from Hugging Face for sentence similarity: lightonai/modernbert-embed-large-unsupervised · sentence transformers

## Facts

- Type: Embedding
- Task: sentence-similarity
- Framework: sentence-transformers
- License: apache-2.0 — Permissive open license: commercial use, modification, and redistribution are permitted. (https://spdx.org/licenses/Apache-2.0.html)
- Source: https://huggingface.co/lightonai/modernbert-embed-large-unsupervised
- Hosting: hosted (5 files)
- Files: 5 hosted of 7 listed
- File counts: "listed" is every file in the source repository; only hosted files download from Hugging Bay, and the download plan lists the files it selects for one download, so its count can differ.
- Hosted here: 5 files, 1.58 GB
- Full repo upstream: 1.58 GB
- Recommended file: 1.58 GB · model.safetensors
- Download: https://huggingbay.xyz/artifact/hf-model-lightonai-modernbert-embed-large-unsupervised/files (download plan: https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/download-plan)
- Per-file SHA-256: available for 5 of 5 hosted files via https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/files?limit=100
- Run-ready: no (Hugging Bay has not certified a run path for this model; hosted bytes are downloadable and hash-checkable only)
- Peer-assisted fallbacks: 0 verified, 0 pending review
- Downloads: 111
- Stars: 0
- Card completeness: 96%

## Description

External Hugging Face catalog record for lightonai/modernbert-embed-large-unsupervised. Task: sentence similarity. Library: sentence transformers. Languages: en. Includes 12 model-card evaluation signals. Popularity signal at import: 739 downloads and 0 likes.

## Model Card Facts

- Declared license: apache-2.0
- Pipeline: sentence-similarity
- Library: sentence-transformers
- Task categories: sentence-similarity
- Languages: en
- Paper ids: 2402.01613, 2412.13663
- Model-index entries: modernbert-embed-large-unsupervised
- Evaluation signals: 12 model-card eval results
- File hints: 7 upstream file samples

## Evaluation Signals

- MTEB AmazonCounterfactualClassification (en): accuracy = 76.64179104477611 (Classification)
- MTEB AmazonCounterfactualClassification (en): ap = 39.43815135661555 (Classification)
- MTEB AmazonCounterfactualClassification (en): f1 = 70.47335737802807 (Classification)
- MTEB AmazonPolarityClassification: accuracy = 91.830425 (Classification)
- MTEB AmazonPolarityClassification: ap = 88.83626170006555 (Classification)
- MTEB AmazonPolarityClassification: f1 = 91.82486904365354 (Classification)
- MTEB AmazonReviewsClassification (en): accuracy = 47.864000000000004 (Classification)
- MTEB AmazonReviewsClassification (en): f1 = 47.28133361073809 (Classification)
- MTEB ArguAna: map_at_1 = 26.884999999999998 (Retrieval)
- MTEB ArguAna: map_at_10 = 41.525 (Retrieval)

## Referenced Data

- Paper: 2402.01613
- Paper: 2412.13663

## File Hints

- .gitattributes (1.5 KB)
- README.md (427 KB)
- config.json (1.2 KB)
- model.safetensors (1.5 GB) LFS
- special_tokens_map.json (694 B)
- tokenizer.json (3.4 MB)
- tokenizer_config.json (20 KB)

## Quality Checklist

- Summary: passed
- Description: passed
- Model card metadata: passed
- License: passed
- Provenance: passed
- File inventory: passed
- Hosted bytes: passed
- Scan result: passed
- Manifest signature: passed

## Safety Notes

- External catalog metadata imported from Hugging Face public API on 2026-09-22T20:41:29.542Z.
- Open license detected as apache-2.0.
- Model-index metadata found for modernbert-embed-large-unsupervised.
- Not a run kit: hosted, hash-checked bytes only; run readiness is not certified for this model yet.

## Actions

- Web: https://huggingbay.xyz/artifact/hf-model-lightonai-modernbert-embed-large-unsupervised
- Files API: https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/files?limit=100
- Metadata: https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/metadata.json
- Distribution: https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/distribution
- Manifest: https://huggingbay.xyz/api/manifests/hf-model-lightonai-modernbert-embed-large-unsupervised
- Download plan (per-file SHA-256 + signed download URLs): https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/download-plan
- Hosted download rows: https://huggingbay.xyz/api/downloadable-files?artifactId=hf-model-lightonai-modernbert-embed-large-unsupervised&limit=100
- Request mirror: not applicable.
- Submit peer fallback for review: POST https://huggingbay.xyz/api/artifacts/hf-model-lightonai-modernbert-embed-large-unsupervised/decentralized-fallbacks