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Inf Retriever v1 1.5B

Feb 2025
iInf Retriever v1 1.5B
Compare in
on
self-host onlyprice
60.8MTEB English v2
Feb 2025released
1,536Dimensions
33K tokensMax input
en, zhLanguages

Rankingconfiguration unstated?

Full ranking →
1Octen Law 8B v176.82Litil Embed 0.6B73.33Dinghy Law 8B v172.64Dinghy Law 4B v171.25Euler Legal Embedding v170.4
···
14ICT TIME And Querit Embedding v162.215Inf Retriever v1 1.5B6216F2LLM v2 4B61.5

Strong at

S
Embeddings & Retrieval#17 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
BEIR · Mean over tasks · English58.4#20
BEIR · Mean over task types · English58.4#20
BEIR · Retrieval · English58.4#20
BEIR-NL · Mean over tasks · Dutch50.1#2
BEIR-NL · Mean over task types · Dutch50.1#2
BEIR-NL · Retrieval · Dutch50.1#2
BRIGHT · Mean over tasks · English13.4#19
BRIGHT · Mean over task types · English13.4#19
BRIGHT · Retrieval · English13.4#19
MTEB Mandarin Chinese v1 · Retrieval · Mandarin Chinese73.7#26
ChemTEB · Retrieval · English77.5#5
LongEmbed · Mean over tasks · English70.2#22
LongEmbed · Mean over task types · English70.2#22
LongEmbed · Retrieval · English70.2#22
MTEB German v1 · Retrieval · German56#10
MTEB Europe v1 · Retrieval · multilingual (25 languages)63#6
MTEB Europe v1 · Instruction Reranking · English0.1#57
MTEB French v1 · Retrieval · multilingual (2 languages)64.4#8
MTEB Indic v1 · Retrieval · multilingual (14 languages)78.1#26
MTEB Law v1 · Mean over tasks · multilingual (3 languages)62#15
MTEB Law v1 · Mean over task types · multilingual (3 languages)62#15
MTEB Law v1 · Retrieval · multilingual (3 languages)62#15
MTEB Medical v1 · Retrieval · multilingual (10 languages)65#14
FollowIR · Mean over tasks · English0.1#57
FollowIR · Mean over task types · English0.1#57
FollowIR · Instruction Reranking · English0.1#57
MTEB Scandinavian v1 · Retrieval · multilingual (3 languages)66#22
CoIR · Mean over tasks · multilingual (9 languages)66.4#38
CoIR · Mean over task types · multilingual (9 languages)66.4#38
CoIR · Retrieval · multilingual (9 languages)66.4#38
MTEB Code v1 · Mean over tasks · multilingual (15 languages)68.5#32
MTEB Code v1 · Mean over task types · multilingual (15 languages)68.5#32
MTEB Code v1 · Retrieval · multilingual (15 languages)68.5#32
RTEB French beta · Mean over tasks · multilingual (2 languages)45.3#56
RTEB German beta · Mean over tasks · German62.1#38
RTEB Law beta · Mean over tasks · multilingual (4 languages)50.6#39
MTEB multilingual v2 · Retrieval · multilingual (120 languages)63#30
MTEB multilingual v2 · Instruction Reranking · English0.1#57

FAQ

How much does Inf Retriever v1 1.5B cost?›

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

Is Inf Retriever v1 1.5B free to use?›

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

How good is Inf Retriever v1 1.5B, and what is it best at?›

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

Is Inf Retriever v1 1.5B better than ICT TIME And Querit Embedding v1?›

On MTEB Law v1 · Mean over task types · multilingual (3 languages), Inf Retriever v1 1.5B scores 62 vs 62.2 — about the same.

When was Inf Retriever v1 1.5B released? Is there a newer version?›

Released 2025-02-08. It is the current version in its line.

Is Inf Retriever v1 1.5B open source?›

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

Can I run Inf Retriever v1 1.5B locally?›

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

What is Inf Retriever v1 1.5B?›

Inf Retriever v1 1.5B is an open-weights embeddings & retrieval model from infly, released Feb 2025.

What are the best alternatives to Inf Retriever v1 1.5B?›

Voyage 3 (better), Octen Law 8B v1 (open weights).