Using phone credit directly to offset Token computing power, I can understand this bill.

Shanghai Telecom announced that it will launch Token computing power services for users in Shanghai, becoming the first operator in Shanghai to publish Token computing power pricing. The service offers two billing methods: pay-as-you-go ordering and on-demand discounts. For every 1 yuan, you receive 250,000 quota points, and it supports payment via mobile phone bill statements. After purchase, users can call standard APIs to access more than 30 mainstream large models, covering text and multimodal content/modalities. For example, if you purchase 2.5 million quota for 10 yuan, it can roughly support program-assisted automatic summarization of 100 e-books of 100,000 words each.