Scientists from Shanghai Jiao Tong University have announced a breakthrough in computing: within the university, the development of LightGen has been achieved-a fully optical chip capable of running large-scale generative artificial intelligence models. This is the world’s first solution of its kind, addressing the challenges of colossal energy consumption and lack of capacities in the modern era of rapid AI development. The results of the research were published in the scientific journal Science.
Unlike traditional transistors, optical computing technology processes information with light, providing high speed and parallelism. Previously, optical chips struggled with complex content generation tasks, but the LightGen team has overcome major barriers. They managed to place millions of “optical neurons” on a single chip and implement a full “input-understanding-generation” cycle exclusively on an optical basis.
Performance Beyond Expectations
LightGen is capable of performing high-complexity tasks: from creating images and 3D objects to generating high-definition video. The chip essentially forces light to “understand” semantics: the system receives data, analyzes its meaning, and creates new content, without the aid of electronics during processing.
The work quality is comparable to advanced neural networks like Stable Diffusion. Tests have shown staggering efficiency of the novelty. Even with outdated peripheral equipment, LightGen outperformed top solutions, such as Nvidia’s, in speed and energy efficiency by two orders of magnitude (100 times). The theoretical potential of the technology when using modern equipment promises a performance increase of 7-8 orders of magnitude.
Implications for the Future
In the broader scope of generative AI, the advancements seen in LightGen may lead to industry shifts as they push boundaries in AI capabilities. New optical computing strategies could significantly reduce the carbon footprint of data centers, aligning with global sustainability goals.
Furthermore, the success of LightGen signifies a competitive edge over traditional electronic systems, potentially affecting market leaders like Nvidia. While Nvidia continues to innovate with new AI solutions, the solid showing of LightGen in tests may lead to a reevaluation of the industry’s standard solutions for processing power and energy efficiency.
