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A

Act

huggingface.co·Infrastructure

kris0/act_v4 is an open-source imitation learning model designed for robotics, focusing on predicting short action chunks from teleoperated data. It supports integration with robotics libraries and can be used for both training and inference in research or practical robotics applications. The model is suitable for robotics researchers and developers.

Open SourceApache-2.0
WebCLIAPI
A
Act preview
Visit huggingface.co↗
⭐25.9k
stars
🍴5.1k
forks
📋1
alternative
✓5
features
📅2024
since

Overview

5 features

In the Other AI space, Act takes a focused approach. It focuses on enabling robots to learn and execute complex actions from teleoperated data using imitation learning. It is built as an open-source project for robotics researchers. Act is open source under the Apache-2.0 license. The product ships for the web, the command line, and API.

Behind Act is kris0, and the product first shipped in 2024. Development happens publicly on GitHub with 25.9k stars and 157 commits in the last 90 days. Key capabilities include imitation learning, action chunking, and robotics integration.

  • ✓Imitation learning
  • ✓Action chunking
  • ✓Robotics integration
  • ✓Open-source weights
  • ✓Colab support

Tags

imitation-learningrobotics-policyaction-chunkingopen-weightstransformer-model

AI capabilities

Weights: Open

Built with & integrations

Hosting
aws
AI providers
openailocal_oss
Runs on
BrowserCLIAPI-only

Trust & compliance

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

Recent events

Latest indexed changes and source events

  1. IndexedJul 16, 4:25 PM

    kris0/act_v4 verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about Act

What does Act do?
Act focuses on enabling robots to learn and execute complex actions from teleoperated data using imitation learning. It is catalogued under Other AI on PulseGate.
Who is Act for?
Act is an open-source project built for robotics researchers.
Is Act free?
Yes — Act is open source under the Apache-2.0 license and free to use.
What platforms does Act run on?
Act runs on the web, the command line, and API.
Is Act still maintained?
PulseGate's automated liveness checks currently classify Act as active. The GitHub repository shows 157 commits in the last 90 days.
What are alternatives to Act?
Similar tools tracked by PulseGate include Act, Act Policy, and Act Task1.ActAct PolicyAct Task1
Who makes Act?
Act is developed by kris0.
When did Act launch?
Act first shipped in 2024.

At a glance

Pricing
Open Source
Platforms
Web
Languages
English
License
Apache-2.0
First seen
Mar 6, 2024
Activity
🟢 Active
Status
🟢 Active
Built for
robotics researchers
Model
Open source
Solves
Enabling robots to learn and execute complex actions from teleoperated data using imitation learning.

Developer

kris0
Community-driven

Open source

⭐ Stars
25,874
🍴 Forks
5,100
Open issues
919
Last commit
today
Commits 90d
157
Contributors
224
Authorship
Community-driven
Default branch
main
Latest release
v0.6.0 · 2w ago

Live coverage

Confidence
Medium · 70
Indexed
Jul 16, 2026
Lifecycle
Alive
Activity
Active
First seen
Mar 2024
Last seen
today
Identity audit (9)
Entity ID
cmrnq0rml03ao112c9qzfia8b
Slug
kris0-act-v4-huggingface-co
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 16, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 16, 2026
Canonical URL
https://huggingface.co/kris0/act_v4

Similar apps

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  • Act
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  • Act Task1
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  • Act Pusht
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  • Act Merged All24
    huggingface.co
  • Act Policy Test4
    huggingface.co