[Claude Accounts Instantly Banned After Chinese Passport Verification, OpenAI Restricts Multiple Accounts Per SIM Card: Two AI Giants Tighten Risk Controls] Beating AI News: Recently, many Claude and ChatGPT users have reported their accounts being suddenly banned. Claude users are frequently encountering identity verification issues, with some being immediately banned after submitting their Chinese passports. ChatGPT has seen a surge in account ban complaints since around November 7th, affecting free users, Plus members, Pro users (costing $200 per month), and even enterprise accounts. Claude's identity verification process began in April of this year. Users may be required to upload passports or other identification documents through the third-party platform Persona, and then take a selfie to verify their identity. Since the end of October, many long-time users have suddenly encountered verification requirements. Some were immediately banned after verifying with their Chinese passports, while others passed smoothly. One user was instantly banned after submitting their passport, but their account was restored the next day after appealing. Anthropic officially prohibits the use of Claude from unsupported regions such as mainland China. In its September security report, the company explicitly stated that its system would identify risk signals such as unauthorized resale of Claude accounts and accounts originating from restricted regions like China, requiring users to verify their identities; failed verification would result in account suspension. OpenAI has also begun strictly limiting the use of multiple accounts. According to the latest official documentation, linking too many subscriptions to the same bank card will prevent new accounts from purchasing memberships; logging into too many paid accounts on the same device will also trigger restrictions, even resulting in successful payments but inability to use the service. These restrictions apply to Go, Plus, and all Pro membership tiers. OpenAI recently also offered eligible Pro users API credits equivalent to their membership price, up to $500 per month. These credits have become targets for resale on third-party resellers for other users. OpenAI explicitly prohibits the resale of API credits or account sharing, with violations resulting in account suspension. Both companies have also recently updated their usage policies. Anthropic announced new rules on October 8th, further clarifying access restrictions for unsupported regions such as mainland China, effective November 12th. On October 21, OpenAI announced new regulations requiring transit platforms that directly provide access to GPT models to obtain prior official approval, which took effect on November 20.