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Opt 1.3b
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O1

Opt 1.3b

huggingface.co·Infrastructure·🇺🇸

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 Source
WebCLIAPI
O
Opt 1.3b preview
Visit huggingface.co↗

Overview

3 features

Opt 1.3b is a Foundation models & chat product. 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.

Meta builds and maintains Opt 1.3b, and the product first shipped in 2022. Among its 3 catalogued features are Causal Language Modeling, transformers, and Open Weights.

  • ✓Causal Language Modeling
  • ✓Transformers
  • ✓Open Weights

Tags

large-language-modelopen-llmopt-series

AI capabilities

TextInference: LocalWeights: Open

Built with & integrations

Hosting
aws
AI providers
local_oss
Runs on
BrowserCLIAPI-only

Trust & compliance

LicenseOpen Source
Verified signals
✓ HTTPS✓ Privacy Policy✓ Terms of Service✓ Open Source✓ Free tier✓ GitHub
Legal
Privacy Policy →Terms of Service →

Recent events

Latest indexed changes and source events

  1. IndexedJul 19, 8:24 PM

    facebook/opt-1.3b verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

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 should use Opt 1.3b?
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 active?
PulseGate's liveness checks currently classify Opt 1.3b as active.
What tools are similar to Opt 1.3b?
Similar tools tracked by PulseGate include Opt 6.7b, Blip2 Opt 6.7b, and Blip2 Opt 2.7b.Opt 6.7bBlip2 Opt 6.7bBlip2 Opt 2.7b
Who develops Opt 1.3b?
Opt 1.3b is developed by Meta, based in the United States.
How long has Opt 1.3b been around?
Opt 1.3b first shipped in 2022.

At a glance

Pricing
Open Source
Platforms
Cli · Web
Languages
English
Open source
Yes (GitHub)
License
Open Source
First seen
Jan 28, 2022
Activity
🟢 Active
Status
🟢 Active
Built for
developers
Model
Open source
Solves
Providing accessible large language model weights for research and development.

Developer

🇺🇸Meta
↗ GitHub

Open source

View on GitHub →

Live coverage

Confidence
Medium · 70
Indexed
Jul 19, 2026
Lifecycle
Alive
Activity
Active
First seen
Jan 2022
Last seen
2d ago
Identity audit (9)
Entity ID
cmrs8vm0603tr11mzn274tqzs
Slug
facebook-opt-1-3b-huggingface-co
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 19, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 21, 2026
Canonical URL
https://huggingface.co/facebook/opt-1.3b

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  • LightOnOCR 2 1B
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  • Gpt Oss 20b
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