Amazon Web Services announced on July 3 that it will stop accepting new customers for its Mechanical Turk crowdsourcing platform, effective July 30, 2026. The service, which has been quietly powering AI training data pipelines since 2005, is entering what amounts to hospice care: existing requesters can keep using it, but no new features, no new development, and no new blood.
The end of an era for human-powered AI
Mechanical Turk, or MTurk, was named after an 18th-century chess-playing automaton that turned out to have a human hiding inside. For two decades, MTurk let companies post tiny tasks, like labeling images, transcribing audio, or categorizing text, and pay human workers pennies per task to complete them. That labeled data became the nutritional foundation for machine learning models across the industry.
The platform integrated directly with AWS SageMaker, Amazon’s machine learning service, creating a convenient pipeline from raw data to trained model. The platform will continue operating for current users, but with no planned updates, it’s essentially frozen in amber.
The AI data labeling market has become fiercely competitive, with centralized platforms like Scale AI, Appen, and Toloka offering more specialized, quality-controlled alternatives.
