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Stella En 400M

huggingface.co·Infrastructure

stella_en_400M_v5 is an English text embedding model with 400 million parameters. It has been evaluated on various MTEB tasks including AmazonCounterfactualClassification. The model is designed for semantic representation of English text and is available on Hugging Face.

Open SourceWebAPI
SStella En 400M preview
Visit huggingface.co↗

Overview

2 features

Stella En 400M is a Foundation models & chat project. It focuses on generating high-quality English text embeddings for semantic search and retrieval tasks. Stella En 400M is an open-source project aimed at AI developers and researchers. The project is open source (Open Source). Stella En 400M is available on the web and API.

Behind Stella En 400M is NovaSearch, and it first shipped in 2024.

Summary written by a language model from the project’s public pages.

  • ✓Text Embeddings
  • ✓MTEB Evaluation
Tags
embedding-modelmteb-benchmark400m-paramstext-embedding
AI capabilities
Text
Inference: LocalWeights: Open

Built with & integrations

Hosting
AWS
Runs on
BrowserAPI-only
Detected from
AWS
x-amz-cf-id header · x-amz-cf-pop header · via header

Trust & compliance

License
Open Source
Verified signals
✓HTTPS✓Open Source

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed21 Jul · 13:37 UTC
    NovaSearch/stella_en_400M_v5 verified against its public source
    Source: PulseGate · Open ↗

Frequently asked questions about Stella En 400M

What is Stella En 400M?
Stella En 400M focuses on generating high-quality English text embeddings for semantic search and retrieval tasks. It is catalogued under Foundation models & chat on PulseGate.
Who is Stella En 400M for?
Stella En 400M is an open-source project built for AI developers and researchers.
Is Stella En 400M free?
Yes — Stella En 400M is open source under the Open Source license and free to use.
What platforms does Stella En 400M run on?
Stella En 400M runs on the web and API.
Is Stella En 400M still active?
Unverified. Stella En 400M has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who develops Stella En 400M?
Stella En 400M is developed by NovaSearch.
When did Stella En 400M launch?
Stella En 400M first shipped in 2024.
Is Stella En 400M open source?
Yes — Stella En 400M is open source under the Open Source license.

At a glance

Pricing
Open Source
Platforms
Web
Languages
English
License
Open Source
Built for
AI developers and researchers
Model
Open source
Solves
Generating high-quality English text embeddings for semantic search and retrieval tasks.

Registered as

Hugging Face
NovaSearch/stella_en_400M_v5

Developer

NovaSearch

Live coverage

Identity confidence
Medium · 70.4
Indexed
21 Jul 2026
Lifecycle
Alive
Last seen
21 Jul 2026
Identity audit (13)
Slug
novasearch-stella-en-400m-v5-huggingface-co
Lifecycle state recorded
21 Jul 2026
Verification state
Indexed for public listing
Listing state
Listed: yes
Index status
Included in index
Latest evidence snapshot
21 Jul 2026
Timeline basis
Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from
Derived from the project's own page and URL.
Category from
Derived from the model's own Hugging Face metadata.
Summary from
Written by a language model from public pages.
Languages from
Detected by a language model from page content.
Last updated
5 Aug 2026
Canonical URL
https://huggingface.co/NovaSearch/stella_en_400M_v5

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