pfnet/plamo-embedding-1b

sentence-similarity model by pfnet

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日本語版のREADME/Japanese README PLaMo-Embedding-1B is a Japanese text embedding model developed by Preferred Networks, Inc. It can convert Japanese text input into numerical vectors and can be used for a wide range of applications, including information retrieval, text classification, and clustering. As of early April 2025, it achieved top-class scores on JMTEB, a benchmark for Japanese text embedding. It demonstrated particularly outstanding performance, especially in retrieval tasks. PLaMo-Embedding-1B is released under the Apache v2.0 license, and you can use it freely, including for commercial purposes. For technical details, please refer to the following Tech Blog post (Ja): https://tech.preferred.jp/ja/blog/plamo-embedding-1b/ Note: For encodedocument and encodequery, texts exceeding the model's maximum context length of 4096 will be truncated. Be especially aware that for encodequery, a prefix is added internally, making the effective maximum context length slightly shorter. We conducted a performance evaluation using…

pfnet/plamo-embedding-1b on Hugging Face A short preview, not the full document.

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  1. PLaMo-Embedding-1B
  2. Model Overview
  3. Usage
  4. Requirements
  5. Sample Code
  6. Benchmarks
  7. Model Details
  8. License
  9. How to cite

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Model overview

pfnet/plamo-embedding-1b is a sentence-similarity model repository published by pfnet on Hugging Face. The source reports the transformers library.

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Model facts

Task
sentence-similarity
Library
transformers
Recent downloads (30 days)
128,900
Cumulative likes
48
Hugging Face trending score
0
Reported safetensors parameters
1,050,644,480
Architecture
PlamoBiModel
License
apache-2.0
Access
Not gated by Hugging Face
Created
2025-04-11T08:43:31.000Z
Last modified
2025-08-28T10:22:44.000Z

Compatibility and lineage

Reported languages: ja

Base-model lineage was not included.

Parameter count is not a RAM/VRAM requirement. Check precision, quantization, context length and runtime compatibility in the model card; no hardware or API-cost claim is inferred here.

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Source: Hugging Face Hub. Metadata observed 2026-10-02T06:40:29.845Z. Daily imports are snapshots, not real-time monitoring.

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