Ascend

in English: Huawei Ascend

advancedspreading

Ascend is Huawei's family of artificial intelligence chips, which China uses to replace American Nvidia processors in training and running AI models.

In plain terms

Artificial intelligence rests on enormous computing work, which is done by specialized chips. If the AI model is the car, the chip is the engine. Ascend is the engine family of China's Huawei: processors designed specifically for AI tasks.

Its significance is at least as political and economic as it is technical. Due to multiple adjustments to US export controls, Chinese companies cannot access, or have limited access to, the most powerful Nvidia chips, and the Chinese state promotes the use of domestic chips. Ascend is the domestic alternative: Chinese language models, image recognizers, and AI agents can run on it.

Individual Ascend chips are generally weaker than Nvidia's top models. Huawei compensates by connecting many chips into a single giant system. It is like running many smaller trucks in a convoy instead of one large truck: it requires more power and space, but the cargo reaches its destination.

How it works

The chips are designed by HiSilicon, the semiconductor design subsidiary of Huawei. The first Ascend 910 was still manufactured by the Taiwanese TSMC; since the US restrictions in 2020, production has been carried out mainly by Chinese factories (primarily SMIC), using technology older than the world's leading edge.
Two main categories exist: smaller, energy-efficient chips (such as the Ascend 310) are for running pre-trained models, while large ones (the Ascend 910 and successors) are for training models and large-scale execution.
The chips are built into servers called Atlas, and the servers are connected via a fast network into clusters of hundreds or thousands of chips.
The hardware comes with its own software suite. The CANN base layer is roughly equivalent to Nvidia's CUDA solution. MindSpore is Huawei's proprietary AI framework, a rival to PyTorch; PyTorch can also run on the chips via an adapter layer.
Developers adapt their models to this software environment, then run them in Huawei's cloud or their own data center.

An everyday example

You read in the news that a Chinese AI company's new language model runs on "domestic chips", causing Nvidia's stock price to move. In such cases, "domestic chip" often refers to a variant of the Huawei Ascend. If you use a Chinese-developed chatbot, the responses may be partially generated by such processors, although Chinese companies continue to use many Nvidia chips.

Who is affected

bank customer, investorThe success or failure of Ascend could affect Nvidia's and other chipmakers' revenue in China, and through that, technology share prices. → Money

developerIf you are working for the Chinese market or a Chinese cloud, you must adapt your model to Huawei's software environment instead of the usual Nvidia tools. → Code

entrepreneur, executiveWhen making supplier and cloud provider decisions, you must account for the fact that the world's AI infrastructure is increasingly splitting into American and Chinese camps.

lawyer, citizenAscend is a key example in the debate on technological sovereignty and export controls, which also affects Europe's room for maneuver. → Law

A common misconception

MythAscend chips are now equal to Nvidia's best processors, making sanctions ineffective.

In realityMeasured per chip, Ascend lags behind the top tier, and the manufacturable quantity is also limited. Huawei reduces the gap by connecting many chips, but does not eliminate it.

Limits and risks

Performance data mostly come from Huawei's own statements, with few independent measurements, so treat them with caution.
Due to sanctions, manufacturing relies on older technology and limited capacity, resulting in chips that consume more power and cannot be produced in unlimited quantities.
The software environment is less mature than NVIDIA's, so porting existing models is time- and labor-intensive.
It is barely accessible outside China, and using Huawei devices runs into legal or security-policy restrictions in several countries.

Similar, but not the same

Huawei Ascend okostelefonok – In the first half of the 2010s, Huawei phones carried this name; in current news, Ascend refers to AI chips.
Kirin – Kirin is Huawei's processor family for phones, while Ascend is an AI chip designed for data centers and industrial devices.
Nvidia GPU – Nvidia's graphics processors are the dominant AI chips on the global market; Ascend is their Chinese rival, with its own, different software environment.

Related concepts

Broader

AI chip, AI accelerator, computing capacity, Semiconductor industry

Narrower

Ascend 910, Ascend 310, CloudMatrix, MindSpore, CANN

On the edge

Nvidia, Huawei, export restriction, Technological sovereignty, DeepSeek

A brief history

Huawei announced the Ascend chip family in 2018 and launched the Ascend 910 for training in 2019. Huawei was placed on the US sanctions list in 2019 and lost access to Taiwan's TSMC production lines in 2020. The family then shifted to Chinese manufacturing and became a key tool for Chinese chip self-sufficiency. In September 2025, Huawei announced a multi-year development plan for successors (Ascend 950, 960, and 970).

Where things stand

In China, Ascend is the most important domestic AI chip family; large technology companies and state data centers are using it increasingly widely, although chips from other Chinese manufacturers also compete with it. Outside China, its presence is marginal. Huawei announced its development plan for several years in advance in 2025, but the family still lags behind the leading edge.

Status: 2026 November

In the news

Appears in 2 Agent Age stories; the curve shows weekly occurrence in the news magazine.

DeepSeek releases open tools for Huawei Ascend chips to reduce reliance on NvidiaSep 30, 2026 · Agent Age
Ascend Learning acquires M7 Health and DexCare acquires Mila HealthSep 21, 2026 · Health

Also known as

Huawei Ascend · Ascend · Ascend chip · Ascend AI-processzor · Ascend 910 · Ascend 910C · HiSilicon Ascend · Shengteng (昇腾)

Sources

Huawei Ascend – official community page

This entry was machine-edited and has undergone machine expert review; the “In the news” section updates automatically from Agent Age stories.