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Amazon Mechanical Turk Is Being Put Out to Pasture

14 July 2026

Amazon Web Services has announced it will stop accepting new customers for its Mechanical Turk crowdsourcing platform, with the service closing to new users from July 30, 2026, signalling the eventual retirement of one of the internet's earliest crowdsourcing marketplaces. Launched in 2005, Mechanical Turk allowed users to post tasks for remote workers to complete, and later found a use case in human-reviewed data annotation for AI training. Amazon has not given an official reason for the wind-down, though it has developed competing services such as SageMaker GroundTruth, and reports suggest the platform has been in decline for some time.

Amazon Web Services has quietly moved Mechanical Turk onto its retirement list, closing the platform to new customers from 30 July 2026. Existing users can carry on for now, but the writing is clearly on the wall.

For the uninitiated, Mechanical Turk is a crowdsourcing marketplace where requesters post small tasks and workers pick them up for pay. The name is a reference to a famous 18th-century hoax: a supposed chess-playing automaton that was, in reality, a human operator hidden inside a cabinet. Apt, given the platform's whole premise was human labour dressed up as something more scalable.

AWS launched it in November 2005, which made it genuinely ahead of its time. Fiverr and Freelancer didn't exist yet. For a while, Mechanical Turk had the crowdsourcing space largely to itself, and Amazon was happy to tell anyone who'd listen that it was a roaring success.

The platform got a second wind in 2018 when AWS positioned it as a data labelling tool for machine learning workflows, integrating it with SageMaker so developers could have humans annotate training data. That use case aged poorly. The AI boom eventually produced more specialised, better-tooled alternatives, and AWS built its own: SageMaker Ground Truth. At some point Mechanical Turk became redundant to the very product it was meant to support.

This week, AWS added the SageMaker AI/Mechanical Turk integration to its 'Services in Maintenance' list, which is the corporate equivalent of a hospice referral. We asked Amazon directly whether this covers all Mechanical Turk jobs, not just SageMaker-related ones. It does.

Amazon hasn't offered a formal explanation for the decision. It rarely does with these things.

Over on the Mechanical Turk subreddit, regular workers paint a grimmer picture than the official timeline suggests. Accounts have apparently been getting terminated with little warning and no real explanation for some time now. Quietly culling the workforce is a reliable method for making a crowdsourcing platform unusable long before you officially pull the plug.

At nearly 20 years old, Mechanical Turk had a decent run. But between purpose-built data labelling platforms, tighter AI tooling, and Amazon's apparent indifference to maintaining it, there was probably no version of this story that didn't end here.

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