Hajra Naz
Amazon will permanently close Mechanical Turk, the crowdsourced micro-task marketplace it launched in 2005, on September 30, 2026. AWS confirmed the shutdown date in its own SageMaker documentation, advising customers who rely on the MTurk workforce to review their workflows and move to an alternative before then. The platform spent 21 years paying people small sums to do the kind of work software could not yet handle on its own.
The timeline Amazon has set
The closure did not arrive without warning. Mechanical Turk stopped accepting new customers on July 30, 2026, a step taken alongside similar changes to AWS SageMaker Ground Truth and Amazon Augmented AI. At the time, AWS said the decision followed “careful consideration” and noted that it would keep investing in security and availability for the service but had no plans to add new features, as reported by TechCrunch in July.
The AWS developer documentation now carries a service closure notice at the top of the page covering the Mechanical Turk workforce option, stating that the platform will permanently close on September 30, 2026 and recommending affected customers transition before that date. Anyone running Ground Truth labeling jobs or Augmented AI human review loops against the public crowd workforce has roughly five weeks from today to select a different workforce.
A platform that AI first fed, then replaced
Mechanical Turk ran on what Amazon called Human Intelligence Tasks: labeling images, transcribing audio and video, filling in surveys, tagging the sentiment in a sentence. Jeff Bezos once described the service as “artificial artificial intelligence”, a marketplace where people quietly did the jobs machines were not ready for. From 2018 onward, Amazon repositioned it as a way to annotate data for training neural networks through SageMaker.
That repositioning is where the irony sharpened. A 2023 analysis found that between 33% and 46% of workers on the platform were using large language models to complete their tasks. The humans hired to produce human-generated training data were routing the work through the same class of model that data was meant to improve. Once that loop closed, the thing Mechanical Turk was selling had already thinned out.
Newer specialists absorbed the demand that remained. Firms such as Scale AI, Mercor and Prolific built businesses recruiting workers for AI training and evaluation, competing on vetting and domain expertise rather than on the sheer volume of cheap clicks.
Why a micro-task marketplace mattered here
Mechanical Turk sat near the top of a great many “ways to earn online” lists for years, including older lists published on this site. Its closure reads better as a data point about where the floor of digital work is heading than as a product obituary.
The mechanism is easy to name. Work that is small, repetitive, context-free and mechanically checkable gets priced toward zero once a model can do it acceptably. The 33% to 46% figure is the tell: the workers themselves had already concluded a language model could handle the task, and the buyers eventually reached the same conclusion. The money did not leave data work, though. It moved upward, toward evaluation, red teaming, specialist annotation and language coverage, all of which pay considerably better than a per-task marketplace ever did, because they are buying judgment instead of keystrokes.
The practical read for anyone building income online concerns concentration rather than Mechanical Turk specifically. A platform can post a closure notice in its own documentation and be gone inside five weeks. Spreading work across more than one marketplace, and steadily moving toward work that carries context and accountability, is what survives an announcement like this one.
What happens between now and September 30
Requesters have the clearer path. AWS has told them to select a private or vendor workforce for Ground Truth and Augmented AI workflows before the deadline, and the documentation already lists both alternatives. Workers have less published guidance in the material Amazon has released so far, so anyone still holding a balance or active qualifications should watch the platform’s own notices closely over the coming weeks.
Amazon has framed the shutdown as the result of a routine assessment of its programs and services. Read alongside the July decision to stop new signups, it looks more like the close of a slow wind-down that people on the platform had been predicting for a long time.
