Alibaba has made its AI chip software stack available as open-source at WAIC, aiming to challenge Nvidia's CUDA dominance.
Alibaba's T-Head has announced the open-source release of SAIL, the software stack for its Zhenwu AI chips, at the World AI Conference in Shanghai. This initiative aims to ease the transition for developers currently reliant on Nvidia’s CUDA. T-Head indicated that developers can modify SAIL to fit into popular AI frameworks within a week.
A significant number of AI developers globally utilize CUDA, Nvidia's proprietary toolkit for GPU programming, which effectively binds them to Nvidia hardware — a situation that has contributed to the company achieving a $3.4 trillion market capitalization. During the same conference, Xi Jinping emphasized that no single country should dominate AI, and the decision to open-source SAIL reflects this perspective: for China to attain AI independence, it must break free from the reliance on CUDA at the software level, beyond merely creating alternative chips.
T-Head is not acting alone; Huawei open-sourced CANN, the software environment for its Ascend AI processors, in 2025, while Moore Threads has pursued a similar approach with its GPU stack. All three companies are competing for developers to create software that is compatible with Chinese hardware while maintaining access to frameworks like PyTorch. The challenge lies more in habits than in technology; CUDA has a significant head start of 17 years and boasts the largest ecosystem of libraries in the sector.
The timing of this announcement is significant for Alibaba. Last month, Anthropic accused Alibaba's Qwen lab of conducting an extensive AI distillation campaign against a U.S. firm, and in June, the Pentagon added Alibaba to its Chinese military companies blacklist. By open-sourcing SAIL, the company positions itself as a provider of open AI infrastructure while contesting these designations legally. The 560,000 Zhenwu chips already shipped to over 400 clients now have a publicly accessible software layer, thereby strengthening its ecosystem and making it more difficult for any government to impose restrictions.
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Alibaba has made its AI chip software stack available as open-source at WAIC, aiming to challenge Nvidia's CUDA dominance.
Alibaba's T-Head division has made SAIL, the software stack for its Zhenwu AI chips, available as open-source at WAIC. This move comes after Huawei's CANN was also open-sourced and aims to facilitate the transition away from CUDA.
