Amazon Web Services will stop accepting new customers for Mechanical Turk, its long-running crowdsourcing marketplace, effective July 30, 2026. The move signals that one of the earliest platforms of its kind is approaching retirement.
What Mechanical Turk Is
Launched in November 2005, Mechanical Turk predates well-known gig and freelance platforms and was built to let requesters post small tasks while workers bid to complete them. The service’s name is a reference to an 18th-century chess-playing device that was, in reality, controlled by a hidden human operator. AWS launched the platform as part of a broader effort to give developers programmatic access to capabilities Amazon had already built for its own retail operations. Its infrastructure-as-a-service products did not arrive until the following year.
What AWS Is Doing
This week, AWS added the Amazon SageMaker AI and Mechanical Turk service to its official list of “Services in Maintenance,” the company’s term for products it intends to wind down. A notice on the Mechanical Turk website confirms the platform will be closed to new customers on July 30, 2026, while stating that existing users will not be immediately affected.
Amazon clarified to reporters that the closure applies to new jobs for SageMaker tasks as well as all other task types, meaning the platform is not being narrowed in scope but wound down entirely.
Why It Matters
In 2018, AWS leaned into a data-labeling angle for the service, positioning Mechanical Turk as a way for teams to have humans review and annotate training data for neural networks through its SageMaker platform. That pitch did not save it. AWS has since developed competing offerings, including SageMaker Ground Truth, and supports integrations with third-party crowdsourcing providers.
Community discussion on the platform’s dedicated subreddit suggests the service had been declining for some time, with users reporting that Amazon had been closing worker accounts on short notice and without detailed explanation. Reducing the available worker pool makes the marketplace less useful even to its most committed customers, accelerating the platform’s decline.
Practical Takeaways
- New sign-ups and new job postings will be blocked from July 30, 2026 onward.
- Existing customers are told they will not be immediately impacted, but the platform has no long-term future.
- Teams using Mechanical Turk for data labeling or other crowdsourced tasks should evaluate alternatives such as SageMaker Ground Truth or third-party services that already integrate with AWS.
Amazon has not provided a public explanation for the retirement decision.