Seed1.5 Embedding

Name: Seed1.5 Embedding
Brand: ByteDance Seed

Apr 2025

Seed1.5 Embedding

Compare in

price not verifiedprice

67.5MTEB English v2

Apr 2025released

33K tokensMax input

Rankingconfiguration unstated?

Full ranking →

1LCO Embedding Omni 7B39.7 2LGAI Embedding Preview38.9 3Gemini Embedding 00138.3 4ICT TIME And Querit Embedding v138 5Giga Embeddings Instruct37.7

···

15E5 Mistral 7B Instruct36.6 16Seed1.5 Embedding36.4 17SFR Embedding Mistral36.3

Strong at

Embeddings & Retrieval#6 of 200

Alternatives?

ModelScoreCostPriceWhat changes

aBetterLGAI Embedding PreviewunstatedOpen+7%——IOpenICT TIME And Querit Embedding v1unstated+4%——aOpenGiga Embeddings Instructunstated+4%——Max input: 33K tokens → 4K tokens

OpenEmbeddingGemma 300Munstated+3%—$0.002Max input: 33K tokens → 2K tokens LOpenLinq Embed Mistralunstatedsame——

Benchmarks

in Embeddings & Retrieval

BRIGHT · Mean over tasks · English27.2#1

BRIGHT · Mean over task types · English27.2#1

BRIGHT · Retrieval · English27.2#1

MTEB Mandarin Chinese v1 · Mean over tasks · Mandarin Chinese74.9#5

MTEB Mandarin Chinese v1 · Mean over task types · Mandarin Chinese76#5

MTEB Mandarin Chinese v1 · Retrieval · Mandarin Chinese79.3#5

MTEB Mandarin Chinese v1 · STS · Mandarin Chinese66.6#5

MTEB Mandarin Chinese v1 · Reranking · Mandarin Chinese70.1#12

MTEB Mandarin Chinese v1 · Clustering · Mandarin Chinese71.1#9

MTEB Mandarin Chinese v1 · Pair Classification · Mandarin Chinese89.6#4

MTEB Mandarin Chinese v1 · Classification · Mandarin Chinese79.5#2

MTEB Medical v1 · Clustering · English51.4#8

MTEB Medical v1 · Reranking · Mandarin Chinese88#20

FAQ

How much does Seed1.5 Embedding cost?›

There is no per-unit API price: price not verified.

How good is Seed1.5 Embedding, and what is it best at?›

#6 of 200 in Embeddings. Strongest at: Embeddings & Retrieval.

Is Seed1.5 Embedding better than E5 Mistral 7B Instruct?›

On MTEB English v2 · Summarization · English, Seed1.5 Embedding scores 36.4 vs 36.6 — about the same.

When was Seed1.5 Embedding released? Is there a newer version?›

Released 2025-04-25. It is the current version in its line.

Is Seed1.5 Embedding open source?›

No, Seed1.5 Embedding is a closed model available through an API. The closest open-weights option here is LGAI Embedding Preview.

What is Seed1.5 Embedding?›

Seed1.5 Embedding is a closed embeddings & retrieval model from ByteDance Seed, released Apr 2025.

What are the best alternatives to Seed1.5 Embedding?›

LGAI Embedding Preview (better).