ByteDance-Seed / Seed1.5-Embedding

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Model's Last Updated: May 12 2025

Introduction of Seed1.5-Embedding

Model Details of Seed1.5-Embedding

Seed1.5-Embedding

Introduction

We introduce Seed1.5-Embedding, a powerful embedding model built on top of our pretrained LLM. It stands out with the following key features:

  • Generalist : Excels in general-purpose embedding tasks, achieving state-of-the-art performance on MTEB benchmark in both Chinese and English.

  • Reasoning Expertise : Demonstrates strong capability in complex query understanding and reasoning, delivering state-of-the-art results on BRIGHT benchmark.

  • Flexibility : Supports multiple embedding dimensions — [2048, 1024, 512, 256] — with minimal performance degradation at lower dimensions.

The model's API will be publicly available soon. Please stay tuned! :)

Performance
MTEB_v2 (English)
Model AVG Classification Clustering Pair Classification Reranking Retrieval STS Summarization
Linq-Embed-Mistral 69.80 83.00 54.07 88.44 49.44 60.14 84.69 37.26
NV-Embed-v2 69.81 87.19 47.66 88.69 49.61 62.84 83.82 35.21
jasper-en-vision-language-v1 71.41 90.27 60.52 88.14 50.00 56.05 84.37 37.19
gemini-embedding-exp-03-07 73.30 90.05 59.39 87.70 48.59 64.35 85.29 38.28
RELLE 73.59 90.06 58.20 88.74 49.46 67.15 84.04 38.02
Seed1.5-Embedding 74.76 89.88 60.83 87.39 50.67 67.45 87.23 36.44
C-MTEB (Chinese)
Model AVG Classification Clustering Pair Classification Reranking Retrieval STS
bge-multilingual-gemma2 67.64 75.31 59.30 86.67 68.28 73.73 55.19
gte-Qwen2-7B-instruct 71.62 75.77 66.06 87.48 68.92 75.71 65.20
xiaobu-embedding-v2 72.36 76.53 65.17 91.87 72.58 76.50 64.18
Conan-embedding-v1 72.50 76.77 66.33 91.66 72.76 76.67 63.67
Conan-embedding-v2 74.24 76.47 68.84 92.44 74.41 78.31 65.48
Seed1.5-Embedding 74.87 79.37 71.11 89.57 70.14 79.33 66.56
BRIGHT
Model BRIGHT AVG
SFR-Embedding-Mistral 18.3
text-embedding-004 20.0
GritLM-7B 21.0
gte-Qwen2-7B-instruct 22.5
ReasonIR-8B 24.4
Seed1.5-Embedding 27.2

Runs of ByteDance-Seed Seed1.5-Embedding on huggingface.co

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More Information About Seed1.5-Embedding huggingface.co Model

More Seed1.5-Embedding license Visit here:

https://choosealicense.com/licenses/temporary-model-card

Seed1.5-Embedding huggingface.co

Seed1.5-Embedding huggingface.co is an AI model on huggingface.co that provides Seed1.5-Embedding's model effect (), which can be used instantly with this ByteDance-Seed Seed1.5-Embedding model. huggingface.co supports a free trial of the Seed1.5-Embedding model, and also provides paid use of the Seed1.5-Embedding. Support call Seed1.5-Embedding model through api, including Node.js, Python, http.

ByteDance-Seed Seed1.5-Embedding online free

Seed1.5-Embedding huggingface.co is an online trial and call api platform, which integrates Seed1.5-Embedding's modeling effects, including api services, and provides a free online trial of Seed1.5-Embedding, you can try Seed1.5-Embedding online for free by clicking the link below.

ByteDance-Seed Seed1.5-Embedding online free url in huggingface.co:

https://huggingface.co/ByteDance-Seed/Seed1.5-Embedding

Seed1.5-Embedding install

Seed1.5-Embedding is an open source model from GitHub that offers a free installation service, and any user can find Seed1.5-Embedding on GitHub to install. At the same time, huggingface.co provides the effect of Seed1.5-Embedding install, users can directly use Seed1.5-Embedding installed effect in huggingface.co for debugging and trial. It also supports api for free installation.

Seed1.5-Embedding install url in huggingface.co:

https://huggingface.co/ByteDance-Seed/Seed1.5-Embedding

Url of Seed1.5-Embedding

Provider of Seed1.5-Embedding huggingface.co

ByteDance-Seed
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Updated:July 03 2026