LibreAI / AI 3D / LongSplat
// ai-3d ยท NVlabs/LongSplat

LongSplat

Run longsplat locally: [iccv 2025] longsplat: robust unposed 3d gaussian splat.

๐Ÿ’Ž Hidden gemโ˜… 811 starsโ‘‚ 51 forksNOASSERTIONupdated 2026-01
โ–ฆ visual โ€” this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
// project facts

Project facts

LongSplat is an open-source ai 3d project by NVlabs (NVlabs/LongSplat on GitHub). It has 811 GitHub stars and 51 forks, is released under the NOASSERTION license, and was last updated on GitHub on 19 January 2026.

GitHub stars
811
Forks
51
License
NOASSERTION
Last updated on GitHub
19 January 2026
Category
AI 3D
Listing
Hidden gem โ€” a shorter page for a lesser-known project
Official site
Official site
// how it works

How it works

  1. Clone the repository

    Fetch the source code onto your machine.

  2. Install dependencies

    Set up the Python environment the project needs.

  3. Configure the project

    Copy the sample config or env file and adjust it.

  4. Run it

    Start the app from the source directory.

// features

Why people love it

3D Gaussian Splatting

Built around 3d gaussian splatting for a focused workflow.

3D Reconstruction

Built around 3d reconstruction for a focused workflow.

Computer Graphics

Built around computer graphics for a focused workflow.

Computer Vision

Built around computer vision for a focused workflow.

Open source

Inspect, fork, and modify every line of the code.

Self-hosted

Run it on your own machine โ€” no account lock-in.

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// run it

Run it yourself

  1. Clone

    Get the source on your machine.

    git clone https://github.com/NVlabs/LongSplat.git
  2. Install

    Set up Python dependencies.

    cd LongSplat && pip install -r requirements.txt
  3. Start

    Launch the application.

    cd LongSplat && python main.py
// use cases

What you can build

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// faq

Questions, answered

What does LongSplat do?

It builds 3D scenes from long casual videos using Gaussian splatting, without requiring precomputed camera poses.

Is LongSplat free to use?

Yes โ€” the code is publicly available, so you can use and modify it without a license fee.

How do I install LongSplat?

Clone the GitHub repository and follow the README; the typical flow is install dependencies, configure, and run.

What is LongSplat written in?

It is primarily written in Python, so you will need that toolchain to build or extend it.

Where can I get help with LongSplat?

The GitHub repository is the hub: open issues for bugs and check the README and discussions for guidance.

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// alternatives

Alternatives in AI 3D

The most-starred other AI 3D projects in the LibreAI catalogue โ€” the realistic shortlist if LongSplat is not the right fit.

Get LongSplat

Free and open โ€” grab the source, star the repo, and start creating.