The Shenzhen Municipal Bureau of Industry and Information Technology issued “Certain Measures for Shenzhen to Build a Pioneer City of Artificial Intelligence”. Among them, it is mentioned that “corpus vouchers” will be issued. A maximum of 50 million yuan of “corpus vouchers” are issued every year to promote open sharing and trading of corpus and promote the construction of a data element market. Companies that purchase materials from unrelated parties through data trading platforms to develop and apply large-scale models will be given a maximum of 2 million yuan in funding at no more than 30% of the contract amount. Support enterprises to open up the corpus through an open public data platform, and give each digital source unit a maximum reward of 1 million yuan for open materials that meet the requirements of scale, quality of updates, and application effectiveness according to the annual shared usage of the corpus.