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UltraBERT Embed 150M

Oct 2026
dUltraBERT Embed 150M
Compare in
on
self-host onlyprice
57.2MTEB English v2
Oct 2026released
768Dimensions
33K tokensMax input
enLanguages

Rankingconfiguration unstated?

Full ranking →
1F2LLM v2 14B79.92Qwen 3 Embedding 8B79.93C2LLM 7B79.64F2LLM v2 8B79.65F2LLM v2 4B79.6
···
24Jina Embeddings v472.925UltraBERT Embed 150M72.726Giga Embeddings Instruct 480M 082672.5

Strong at

A
Embeddings & Retrieval#43 of 200

Run it yourself

estimate
Fits on✓ 8 GB (phone, laptop) · full quality✓ 16 GB · full quality✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
LicenceApache-2.0free for commercial use

Benchmarks

in Embeddings & Retrieval
LongEmbed · Mean over tasks · English79.3#3
LongEmbed · Mean over task types · English79.3#3
LongEmbed · Retrieval · English79.3#3
MTEB Medical v1 · Clustering · English38.5#57
CoIR · Mean over tasks · multilingual (9 languages)72.7#25
CoIR · Mean over task types · multilingual (9 languages)72.7#25
CoIR · Retrieval · multilingual (9 languages)72.7#25
MTEB Code v1 · Mean over tasks · multilingual (15 languages)73.3#24
MTEB Code v1 · Mean over task types · multilingual (15 languages)73.3#24
MTEB Code v1 · Retrieval · multilingual (15 languages)73.3#24

FAQ

How much does UltraBERT Embed 150M cost?›

There is no per-unit API price: self-host only.

Is UltraBERT Embed 150M free to use?›

There is no free API. The weights are open, so you can run it yourself.

How good is UltraBERT Embed 150M, and what is it best at?›

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

Is UltraBERT Embed 150M better than Jina Embeddings v4?›

On CoIR · Retrieval · multilingual (9 languages), UltraBERT Embed 150M scores 72.7 vs 72.9 — about the same.

When was UltraBERT Embed 150M released? Is there a newer version?›

Released 2026-10-10. It is the current version in its line.

Is UltraBERT Embed 150M open source?›

Yes, the weights are open (Apache-2.0 licence).

Can I run UltraBERT Embed 150M locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

What is UltraBERT Embed 150M?›

UltraBERT Embed 150M is an open-weights embeddings & retrieval model from dmis-lab, released Oct 2026.

What are the best alternatives to UltraBERT Embed 150M?›

Qwen 3 Embedding 8B (better).