Opt 1.3b focuses on providing accessible large language model weights for research and development. It is catalogued under Foundation models & chat on PulseGate.

Opt 1.3b is an open-source project built for developers.

Does Opt 1.3b have a free plan?

Yes — Opt 1.3b is open source under the Open Source license and free to use.

What platforms does Opt 1.3b run on?

Opt 1.3b runs on the web, the command line, and API.

Is Opt 1.3b still maintained?

Unverified. Opt 1.3b 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.

Opt 1.3b is developed by Meta, based in the United States.

When did Opt 1.3b launch?

Opt 1.3b first shipped in 2022.

Is Opt 1.3b open source?

Yes — Opt 1.3b is open source under the Open Source license, developed on GitHub.

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Opt 1.3b

Name: Opt 1.3b
Author: Meta

huggingface.coInfrastructure🇺🇸

facebook/opt-1.3b is part of Meta's Open Pre-trained Transformer (OPT) suite. It is a decoder-only transformer with 1.3 billion parameters trained on a large text corpus. The model is designed to match the performance of GPT-3 while being fully open source. It is widely used for research, fine-tuning, and inference experiments via the Hugging Face ecosystem.

Open SourceWebCLIAPI

Visit huggingface.co

Overview

3 features

In the Foundation models & chat space, Opt 1.3b takes a focused approach. It focuses on providing accessible large language model weights for research and development. Opt 1.3b is an open-source project aimed at developers. The project is open source (Open Source). It runs on the web, the command line, and API.

Behind Opt 1.3b is Meta, based in the United States, and it first shipped in 2022. Among its 3 catalogued features are Causal Language Modeling, transformers, and Open Weights.

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

Causal Language Modeling
Transformers
Open Weights

Built with & integrations

Hosting

AWS

AI providers

local_oss

Runs on

BrowserCLIAPI-only

Detected from

AWS: x-amz-cf-id header · x-amz-cf-pop header · via header
local_oss: bollama in the HTML · bllama in the HTML · bvllm in the HTML

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of Service Open SourceFree tierGitHub

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed19 Jul · 20:24 UTC
facebook/opt-1.3b verified via Hugging Face Enumerator
Source: Hugging Face Enumerator · Open

Frequently asked questions about Opt 1.3b

What is Opt 1.3b?: Opt 1.3b focuses on providing accessible large language model weights for research and development. It is catalogued under Foundation models & chat on PulseGate.
Who is Opt 1.3b for?: Opt 1.3b is an open-source project built for developers.
Does Opt 1.3b have a free plan?: Yes — Opt 1.3b is open source under the Open Source license and free to use.
What platforms does Opt 1.3b run on?: Opt 1.3b runs on the web, the command line, and API.
Is Opt 1.3b still maintained?: Unverified. Opt 1.3b 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 makes Opt 1.3b?: Opt 1.3b is developed by Meta, based in the United States.
When did Opt 1.3b launch?: Opt 1.3b first shipped in 2022.
Is Opt 1.3b open source?: Yes — Opt 1.3b is open source under the Open Source license, developed on GitHub.

At a glance

Pricing: Open Source
Platforms: CLI · Web
Languages: English
Open source: Yes (GitHub)
License: Open Source
Built for: developers
Model: Open source
Solves: Providing accessible large language model weights for research and development.

Registered as

GitHub: facebookresearch/metaseq
Hugging Face: facebook/opt-1.3b

Developer

🇺🇸Meta

GitHub

Open source

View on GitHub

Index record

Indexed: 19 Jul 2026
Lifecycle: Alive
Last seen: 19 Jul 2026

Identity audit (12)

Slug: facebook-opt-1-3b-huggingface-co
Lifecycle last checked: 8 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 19 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.
Canonical URL: https://huggingface.co/facebook/opt-1.3b

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