Who is Flash Attn3 for?

Flash Attn3 is an open-source project built for developers.

Yes — Flash Attn3 is open source under the Apache-2.0 license and free to use.

What platforms does Flash Attn3 run on?

Flash Attn3 runs on the web, the command line, and API.

Is Flash Attn3 still active?

The GitHub repository shows 166 commits in the last 90 days.

What are alternatives to Flash Attn3?

Similar projects tracked by PulseGate include verdikt, cliver, and ChatGPT Prompts Extension.

Who makes Flash Attn3?

Flash Attn3 is developed by kernels-community.

How long has Flash Attn3 been around?

Flash Attn3 first shipped in 2024.

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Flash Attn3

Name: Flash Attn3
Author: kernels-community

huggingface.coInfrastructure

flash-attn3 is a collection of optimized GPU kernels implementing Flash Attention 3. It provides functions such as flash_attn_func, flash_attn_qkvpacked_func, and flash_attn_combine. The library is designed to be used with the kernels package and is targeted at developers optimizing large language model performance.

Open SourceApache-2.0WebCLIAPI

Visit huggingface.co

715stars

112forks

3features

2024since

Overview

3 features

Flash Attn3 is an Other AI project. It focuses on accelerating attention mechanisms in transformer models through highly optimized GPU kernels for faster training and inference. Flash Attn3 is an open-source project aimed at developers. The project is open source (Apache-2.0). It ships for the web, the command line, and API.

It is developed by kernels-community, and it first shipped in 2024. The project is developed in the open on GitHub with 715 stars and 166 commits in the last 90 days. Among its 3 catalogued features are Flash Attention, GPU Kernels, and Optimized Inference.

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

Flash Attention
GPU Kernels
Optimized Inference

Built with & integrations

Hosting

AWS

Runs on

BrowserCLIAPI-only

Detected from

AWS: x-amz-cf-id header · x-amz-cf-pop header · via header

Trust & compliance

License

Apache-2.0

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierActive maintenance

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed19 Jul · 19:49 UTC
kernels-community/flash-attn3 verified against its public source
Source: PulseGate · Open

Frequently asked questions about Flash Attn3

What does Flash Attn3 do?: Flash Attn3 focuses on accelerating attention mechanisms in transformer models through highly optimized GPU kernels for faster training and inference. It is catalogued under Other AI on PulseGate.
Who is Flash Attn3 for?: Flash Attn3 is an open-source project built for developers.
Is Flash Attn3 free?: Yes — Flash Attn3 is open source under the Apache-2.0 license and free to use.
What platforms does Flash Attn3 run on?: Flash Attn3 runs on the web, the command line, and API.
Is Flash Attn3 still active?: The GitHub repository shows 166 commits in the last 90 days.
What are alternatives to Flash Attn3?: Similar projects tracked by PulseGate include verdikt, cliver, and ChatGPT Prompts Extension.verdikt cliver ChatGPT Prompts Extension
Who makes Flash Attn3?: Flash Attn3 is developed by kernels-community.
How long has Flash Attn3 been around?: Flash Attn3 first shipped in 2024.

At a glance

Pricing: Open Source
Platforms: Cli · Web
Languages: English
License: Apache-2.0
Built for: developers
Model: Open source
Solves: Accelerating attention mechanisms in transformer models through highly optimized GPU kernels for faster training and inference.

Registered as

Hugging Face: kernels-community/flash-attn3

Developer

kernels-community

Community-driven

Open source

Stars: 715
Forks: 112
Open issues: 30
Last commit: 16 Jul 2026
Commits 90d: 166
Contributors: 40
Authorship: Community-driven
Default branch: main
Latest release: v0.16.0 · 26 Jun 2026

Live coverage

Identity confidence: Medium · 70.4
Indexed: 19 Jul 2026
Lifecycle: Unverified
Last seen: 19 Jul 2026

Identity audit (12)

Slug: kernels-community-flash-attn3-huggingface-co
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.
Last updated: 6 Aug 2026
Canonical URL: https://huggingface.co/kernels-community/flash-attn3

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