Amazon Mechanical Turk Is Closing to New Customers — And It May Not Survive

Starting July 30, 2026, Amazon Mechanical Turk will no longer accept new customers. Amazon Web Services confirmed the decision was made after "careful consideration," stating that existing customers can continue using the service but that AWS has no plans to introduce new features. The platform has also been added to AWS's official list of "Services in Maintenance" — the company's term for products heading toward retirement. In short, Amazon isn't pulling the plug today, but Mechanical Turk is effectively on life support.

Launched in November 2005, Mechanical Turk was named after an 18th-century chess-playing automaton that was actually operated by a hidden human — a fitting metaphor for a platform built on disguising human labor as automation. The service let businesses post small, repetitive tasks — like identifying image content or completing CAPTCHA challenges — that resisted full automation, paying workers tiny amounts per task. In 2018, Amazon repositioned it as a tool for annotating AI training data through its SageMaker service, giving it a second life in the machine learning era. The platform was also linked to the early stages of the Facebook-Cambridge Analytica data scandal and was a pioneer that predated competitors like Freelancer and Fiverr.

Mechanical Turk's decline was driven by a feedback loop that ultimately made it unworkable. A 2023 analysis found that between 33% and 46% of workers on the platform were using large language models to complete their tasks — meaning AI was being used to do work supposedly requiring human judgment, undermining the platform's core value proposition for data annotation. Workers and researchers began abandoning the platform due to rampant bots and fraud. In a separate incident from 2024, hundreds of workers were suspended without explanation due to a suspected glitch in Amazon Payments, highlighting the platform's fragility and lack of worker protections. Community members on Reddit this week predicted Amazon will eventually "pull the plug entirely" on servers once the maintenance calculus no longer makes sense.

Existing Mechanical Turk customers and workers can continue using the service for now, though with no new features and no new entrants, the platform's ecosystem will only shrink over time. AWS has competing services, including SageMaker Ground Truth, and allows integration with third-party crowdsourcing platforms. Businesses currently relying on Mechanical Turk for data labeling or human-review tasks should begin evaluating alternatives promptly. For the broader gig economy and AI training data industry, the closure marks a symbolic end: the original marketplace for "human intelligence tasks" is being rendered obsolete by the very AI systems it helped train.