anthropic 剛剛扼殺了 20 美元的 ai 訂閱模式

anthropic is ending flat-rate access to fable 5, requiring subscribers on $20 to $200 plans to pay api-level rates of $10 per million input tokens and $50 per million output tokens starting july 12. this move responds to the model's high inference costs and capacity constraints, potentially adding $60 to a standard user's monthly bill. by gating consumer access with usage billing, anthropic suggests that the era of all-you-can-eat ai subscriptions is ending as agents and complex reasoning models consume far more compute than standard chatbots. the company aims to return fable 5 to flat subscriptions once capacity allows, but given ongoing data center shortages, usage-based pricing may become the new normal for frontier models.