Wu Shuo has learned that Tether CEO Paolo Ardoino disclosed a new version of QVAC Fabric from the Tether AI team, claiming to launch the world's first cross-platform BitNet LoRA framework, based on Vulkan and Apple Metal backend supporting AMD, Intel, Apple and mobile GPUs, enabling BitNet's LoRA fine-tuning and inference to run across GPU vendors and operating systems. It states that demonstrations have been conducted on devices such as Pixel 9, S25, and iPhone 16 with models up to 3.8 billion parameters fine-tuning, and can fine-tune 13 billion parameter models on iPhone 16; mobile GPU inference is 2–11 times faster than CPU, with memory usage reduced by up to 90%.