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CANN

Developer tool

by Huawei

Huawei's heterogeneous compute architecture for its Ascend/Atlas NPUs, supplying the operator libraries, compiler and programming interfaces that bridge AI frameworks to the hardware.

Find alternatives to CANN

Distributed as a free download from the Ascend/Atlas Resource Download Center, which lists CANN first among nine downloadable components and states no licence fee or purchase requirement.

What it does

• GPU programming
• Model training
• Model inference

Sources

Pricing

Official documentation · 1 Sep 2026

Sold within

Official documentation · 30 Sep 2026

CANN is downloaded directly from Huawei's own page - "Find the latest CANN community edition here", with version, chip, CPU, OS and installation-method selectors - and the only condition stated is a licence, not a payment: "Downloading and using this software means you agree to the terms and conditions of the CANN Software License Agreement 2.0."

Also from Huawei

• Atlas Hardware

  Huawei's line of AI training and inference processors (NPUs) and the systems built on them -- the platform brand for the silicon itself (still called Ascend in some regional markets and in the underlying chip generation names), sold standalone and in Atlas-branded servers and SuperPoD clusters, now recorded in their own separate hardware and software-stack products.

• Atlas 650E AI Server Hardware

  14U AI server powered by eight Huawei 950DT NPUs, rated at up to 12.4 PFLOPS at mxFP4, for on-premises AI training and inference in finance, government and healthcare deployments.

• Atlas 950 SuperPoD Hardware

  Rack-scale AI supercomputing cabinet built from 64 Huawei 950DT NPUs per cabinet and scalable to 1,024 NPUs over a UB Link fabric for trillion-parameter model training and inference.

• MindIE Developer tool

  Inference engine and serving framework for Atlas/Ascend hardware that deploys LLM and diffusion models behind unified APIs compatible with vLLM, OpenAI and Triton interfaces.

• MindSpore Developer tool

  Open-source AI framework originated by Huawei for building, training and deploying models with native distributed training, best optimised for Huawei's Ascend/Atlas processors.

• MindStudio Developer tool

  End-to-end development toolchain for Atlas/Ascend AI applications, covering custom operator development, model conversion and compression, accuracy debugging and performance profiling via MindStudio Insight.

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