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Pythia 1b
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Pythia 1b

huggingface.co·Infrastructure

EleutherAI/pythia-1b belongs to the Pythia suite of models. It was trained on the Pile dataset with public checkpoints released throughout training. The model supports causal language modeling and can be used for research into scaling laws and model behavior.

Open SourceApache-2.0
WebCLIAPI
P
Pythia 1b preview
Visit huggingface.co↗
⭐2.9k
stars
🍴221
forks
📋1
alternative
✓3
features
📅2021
since

Overview

3 features

In the Foundation models & chat space, Pythia 1b takes a focused approach. It focuses on providing a fully transparent, open 1B parameter model for language modeling research and downstream applications. Pythia 1b is an open-source project aimed at developers. The project is open source (Apache-2.0). Pythia 1b is available on the web, the command line, and API.

It is developed by EleutherAI, and the product first shipped in 2021. The project is developed in the open on GitHub with 2.9k stars. Among its 3 catalogued features are Text Generation, Decoder-only Architecture, and Training Transparency.

  • ✓Text Generation
  • ✓Decoder-only Architecture
  • ✓Training Transparency

Tags

pythia1b-llmdecoder-onlyopen-weights

AI capabilities

TextInference: LocalWeights: Open

Built with & integrations

Hosting
aws
AI providers
local_oss
Runs on
BrowserCLIAPI-only

Trust & compliance

LicenseApache-2.0
Verified signals
✓ HTTPS✓ Privacy Policy✓ Terms of Service✓ Open Source✓ Free tier
Legal
Privacy Policy →Terms of Service →

Recent events

Latest indexed changes and source events

  1. IndexedJul 21, 3:02 PM

    EleutherAI/pythia-1b verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about Pythia 1b

What is Pythia 1b?
Pythia 1b focuses on providing a fully transparent, open 1B parameter model for language modeling research and downstream applications. It is catalogued under Foundation models & chat on PulseGate.
Who should use Pythia 1b?
Pythia 1b is an open-source project built for developers.
Does Pythia 1b have a free plan?
Yes — Pythia 1b is open source under the Apache-2.0 license and free to use.
What platforms does Pythia 1b run on?
Pythia 1b runs on the web, the command line, and API.
Is Pythia 1b still active?
PulseGate's liveness checks currently classify Pythia 1b as active.
What tools are similar to Pythia 1b?
Similar tools tracked by PulseGate include Pythia 1.4b, Pythia 12b, and Pythia 6.9b.Pythia 1.4bPythia 12bPythia 6.9b
Who develops Pythia 1b?
Pythia 1b is developed by EleutherAI.
How long has Pythia 1b been around?
Pythia 1b first shipped in 2021.

At a glance

Pricing
Open Source
Platforms
Cli · Web
Languages
English
License
Apache-2.0
First seen
Jul 21, 2026
Activity
🟢 Active
Status
🟢 Active
Built for
developers
Model
Open source
Solves
Providing a fully transparent, open 1B parameter model for language modeling research and downstream applications.

Developer

EleutherAI
Community-driven

Open source

⭐ Stars
2,858
🍴 Forks
221
Open issues
25
Last commit
8mo ago
Commits 90d
0
Contributors
28
Authorship
Community-driven
Default branch
main

Live coverage

Confidence
Medium · 70
Indexed
Jul 21, 2026
Lifecycle
Alive
Activity
Active
First seen
Jul 2026
Last seen
today
Identity audit (10)
Entity ID
cmrus9t4305m4qoarbyna64sm
Slug
eleutherai-pythia-1b-huggingface-co
Lifecycle last checked
Jul 21, 2026
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 21, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 21, 2026
Canonical URL
https://huggingface.co/EleutherAI/pythia-1b

Similar apps

Other apps tracked under the same category.

  • Pythia 1.4b
    huggingface.co
  • Pythia 12b
    huggingface.co
  • Pythia 6.9b
    huggingface.co