Amazon is closing Mechanical Turk (MTurk) — the crowdsourced task marketplace it launched in 2005 — on September 30, 2026. The shutdown ends a 21-year experiment in outsourcing small chunks of human work to the internet, and it also kills the MTurk option inside Amazon’s SageMaker Ground Truth data-labeling tool. Amazon hasn’t said so directly, but the timing lines up with a bigger shift: AI can now do much of the labeling, moderation, and transcription work that MTurk’s human “Turkers” used to handle.
Key Takeaways
- Amazon will permanently close Mechanical Turk on September 30, 2026, after 21 years of operation.
- MTurk also powers Amazon SageMaker Ground Truth and Augmented AI human review — that option disappears the same day.
- Workers can still get paid: approved HITs pay out on the normal schedule, HIT approvals run through October 30, 2026, and transaction history stays accessible until January 28, 2027.
- Amazon’s official reason is vague (“we regularly evaluate our programs”), but the shutdown follows years of AI tools and specialized labeling firms taking over the market MTurk once dominated.
- Jeff Bezos once called MTurk “artificial artificial intelligence” — the irony is that real AI now does a lot of what its human workers used to.
What Mechanical Turk Actually Was
Amazon launched Mechanical Turk in 2005, originally to help label and clean up data for its own retail store. The idea: break tedious work into tiny pieces — called HITs, or Human Intelligence Tasks — and let anyone online complete them for a few cents apiece. Over two decades, Turkers transcribed audio, labeled images and video for early computer-vision models, took surveys for academic researchers, moderated content, categorized products, and cleaned up duplicate data.
Bezos famously described the service as “artificial artificial intelligence” — a wink at the fact that MTurk used human brains to do things computers of the time couldn’t. Two decades later, that joke has aged into something closer to prophecy: the AI models MTurk helped train are now capable enough to replace much of the work Turkers once did by hand.
The Shutdown Timeline, Exactly
Amazon has laid out specific dates rather than an immediate cutoff:
- September 30, 2026 — Mechanical Turk’s final operating date. The MTurk worker type also stops being available for new SageMaker Ground Truth labeling jobs and Amazon Augmented AI human review workflows.
- October 30, 2026 — deadline for Requesters to approve outstanding HITs and award any final bonuses.
- January 28, 2027 — last date Workers and Requesters can access their MTurk transaction history.
Amazon says earned funds will still go out on the normal disbursement schedule, but anyone with an MTurk account should verify their payment preferences now rather than assume everything will resolve itself automatically.
Why Now? How AI Ate Mechanical Turk’s Business
AI can now do a lot of what Turkers did
Simple image tagging, basic transcription, and rough content categorization — the bread-and-butter HITs that once needed a human — are now handled reasonably well by automated systems. One widely cited 2023 academic study found that a meaningful share of MTurk workers were already using AI tools to complete their own tasks faster, which says a lot about how much of that work had become mechanical enough for a model to do outright. It’s a small, concrete example of the shift our guide to agentic AI describes at a larger scale: AI systems that don’t just answer questions but complete tasks end-to-end, with far less human handholding in the loop.
Specialized data-labeling firms took the rest
The harder, higher-value labeling work — the kind that actually trains today’s frontier models — moved to companies built specifically for it. The market has roughly split into tiers: commodity tagging (often a few dollars an hour, and increasingly auto-labeled by AI itself), mid-tier work requiring real domain knowledge in fields like finance, medicine, and law (paying $20–$85 an hour), and expert-level annotation from PhDs and credentialed specialists (upward of $85–$200 an hour). Firms like Scale AI, Mercor, Prolific, and CloudResearch now dominate those tiers — Mercor alone reportedly reached roughly $2 billion in annualized revenue by mid-2026. MTurk’s cents-per-HIT model, built for a much simpler internet, never had a path into that higher-margin business.
What This Means If You’re an MTurk Worker or Requester
- Workers: confirm your payment preferences and transfer method in the MTurk Worker Portal now, and don’t wait until the final week to check that outstanding submissions have been approved.
- Requesters: approve any pending HITs and issue final bonuses before October 30, 2026 — after that window, there’s no path to pay out through MTurk.
- Both: export any transaction history or records you need before January 28, 2027, when access to that history ends for good.
- Looking for a replacement platform: Prolific and CloudResearch are geared toward academic and survey research, while Scale AI and Mercor focus on higher-value AI training data — worth comparing based on the type of work you actually did on MTurk.
The Bigger Pattern: AI Replacing “Human-in-the-Loop” Work
MTurk’s closure is a small story next to model releases and IPO headlines, but it’s a clean example of a pattern showing up across the AI industry this year: as models get cheaper and more capable — something we covered in our breakdown of the AI price war of August 2026 — the human labor that used to sit “in the loop” gets squeezed from both ends. Simple tasks get automated outright, and the tasks that still need a person shift toward specialized, higher-skilled work rather than anonymous piecework. Developers building their own AI pipelines are seeing a similar shift, leaning more on open-source AI agent frameworks to handle steps that used to require a human reviewer at every stage.
Frequently Asked Questions
When exactly does Amazon Mechanical Turk shut down?
Mechanical Turk’s final operating date is September 30, 2026. Requesters can still approve outstanding HITs and award bonuses through October 30, 2026, and transaction history stays accessible until January 28, 2027.
Will I still get paid for work I already completed on MTurk?
Yes. Amazon says earned funds will be disbursed on the normal schedule for approved work. Workers should verify their payment preferences in the MTurk Worker Portal to make sure transfers go through smoothly.
What happens to Amazon SageMaker Ground Truth?
SageMaker Ground Truth and Amazon Augmented AI lose the option to use MTurk workers for human labeling and review, effective the same day MTurk closes, September 30, 2026. Amazon has not announced a direct replacement workforce option.
Why is Amazon shutting down Mechanical Turk?
Amazon’s official statement only says it regularly evaluates its programs and decided to close MTurk. The timing follows years of AI automation handling simpler labeling tasks and specialized firms like Scale AI and Mercor capturing the higher-value data-labeling market.
What are the best alternatives to Mechanical Turk?
For academic and survey-style research, Prolific and CloudResearch are common replacements. For AI training data and higher-value labeling work, Scale AI and Mercor have become the dominant platforms.
Mechanical Turk outlives its usefulness the same way a lot of early internet infrastructure eventually does: not with a dramatic failure, but by being quietly out-competed by the very technology it helped build. If you used MTurk for research, data collection, or as a source of income, the practical move now is simple — settle up before the deadlines above, and start looking at where that kind of work has actually moved.
