Amazon Web Services has announced that Mechanical Turk, its legacy crowdsourcing platform, will cease accepting new customers effective July 30, 2026. According to a company statement, the decision followed extensive internal review. Existing clients will maintain uninterrupted access, and AWS will continue investing in security and infrastructure maintenance. However, the company confirmed it will not introduce new features, placing the service in a sustained maintenance mode that signals a gradual phase-out. Since its 2005 launch, Mechanical Turk has evolved from a marketplace for microtasks such as image labeling and CAPTCHA solving into a critical component of artificial intelligence development. Amazon subsequently integrated the platform with its SageMaker machine learning suite to provide human-in-the-loop data annotation, enabling companies to train neural networks at scale. The service also drew scrutiny for its role in broader technology controversies, including early debates over gig labor ethics and data privacy. The platform's relevance has increasingly waned amid automation and systemic integrity issues. A 2023 analysis revealed that between 33 and 46 percent of task completions were generated by large language models rather than human workers, raising significant concerns about data quality and the viability of crowdsourced annotation. Industry observers and user communities have long predicted the service's decline, citing persistent bot fraud, operational costs, and the diminishing need for human oversight in modern AI pipelines. AWS's current position indicates Mechanical Turk will remain operational for legacy clients until a full decommissioning decision is made, closing a defining chapter in digital labor and machine learning infrastructure.