OpenAI's quota and subscription system experiences widespread anomalies: users suddenly receive 20 times the quota while API throttling intensifies.

According to CoinWorld, OpenAI's ChatGPT subscription and quota system experienced a widespread anomaly, causing confusion regarding usage quotas and model permissions for users at different levels. Some Plus subscribers suddenly displayed a 20x limit, gaining access to the higher quotas previously reserved for Pro subscribers. Simultaneously, some Pro subscribers paying $200 per month found their usage quotas abnormally reset to 75%, or their quota limits increased by four times. The system malfunction also affected model usage permissions; many Pro subscribers reported that while their account subscription status displayed Pro, their actual performance had been downgraded to Plus level, and the GPT-5.5 Pro flagship inference model was unavailable in the model selection list. To date, OpenAI's official status page only indicates the issue may occur when users are using Codex access tokens, stating that mitigation measures have been implemented. The official stance has not been publicly acknowledged or explained regarding the quota calculation and account level synchronization anomalies experienced by ChatGPT subscribers. The community generally believes that a faulty backend fee calculation and synchronization logic is the underlying cause of the rapid depletion of quotas and abnormal rate limiting.