HomeAmazon halts new customer registrations for Mechanical Turk
Amazon's Mechanical Turk may be approaching its final days.
According to an announcement on the Mechanical Turk website, the crowdsourcing service will stop accepting new customers as of July 30, 2026. Amazon Web Services explained that the decision came after “careful consideration,” adding, “Existing customers can continue to use the service as normal. AWS continues to invest in security and availability improvements for Mechanical Turk, but we do not plan to introduce new features.”
In other words, Amazon is not fully shutting down the service, but it is clearly on life support.
First launched in 2005, Mechanical Turk was a marketplace where workers received small payments for performing simple tasks that resisted full automation—such as completing CAPTCHA challenges or identifying basic sentiment in a sentence.
In its heyday, the service was central to debates about the ethics of crowdsourced labor, and it even played a minor role in the early stages of the Facebook-Cambridge Analytica scandal.
Starting in 2018, Amazon also promoted it as a way for companies to annotate data for training neural networks as part of its SageMaker AI service.
Less obviously, Mechanical Turk has been described as a hidden enabler for companies taking a fake-it-till-you-make-it approach to AI, where products marketed as AI are actually handled by the Mechanical Turk workforce—all the more fitting since the original Mechanical Turk was itself a hoax, with a hidden human chess player pretending to be a chess-playing machine.
Over time, the relationship between Mechanical Turk and AI models became even more complex. In a snake-eating-its-own-tail irony, a 2023 analysis found that 33% to 46% of workers on the platform were using large language models to complete their tasks, raising questions about the reliability of data annotated on the platform and whether humans were needed in the loop at all.
This week, after Amazon's decision became public, one Reddit user suggested the platform had died “years ago,” with workers and researchers abandoning it due to bots and fraud. The user predicted, “Someone at Amazon is going to decide keeping the Mturk servers running is a waste of time and resources and pull the plug entirely.”
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Amazon's Mechanical Turk may be approaching its final days.
According to an announcement on the Mechanical Turk website, the crowdsourcing service will stop accepting new customers as of July 30, 2026. Amazon Web Services explained that the decision came after “careful consideration,” adding, “Existing customers can continue to use the service as normal. AWS continues to invest in security and availability improvements for Mechanical Turk, but we do not plan to introduce new features.”
In other words, Amazon is not fully shutting down the service, but it is clearly on life support.
First launched in 2005, Mechanical Turk was a marketplace where workers received small payments for performing simple tasks that resisted full automation—such as completing CAPTCHA challenges or identifying basic sentiment in a sentence.
In its heyday, the service was central to debates about the ethics of crowdsourced labor, and it even played a minor role in the early stages of the Facebook-Cambridge Analytica scandal.
Starting in 2018, Amazon also promoted it as a way for companies to annotate data for training neural networks as part of its SageMaker AI service.
Less obviously, Mechanical Turk has been described as a hidden enabler for companies taking a fake-it-till-you-make-it approach to AI, where products marketed as AI are actually handled by the Mechanical Turk workforce—all the more fitting since the original Mechanical Turk was itself a hoax, with a hidden human chess player pretending to be a chess-playing machine.
Over time, the relationship between Mechanical Turk and AI models became even more complex. In a snake-eating-its-own-tail irony, a 2023 analysis found that 33% to 46% of workers on the platform were using large language models to complete their tasks, raising questions about the reliability of data annotated on the platform and whether humans were needed in the loop at all.
This week, after Amazon's decision became public, one Reddit user suggested the platform had died “years ago,” with workers and researchers abandoning it due to bots and fraud. The user predicted, “Someone at Amazon is going to decide keeping the Mturk servers running is a waste of time and resources and pull the plug entirely.”
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