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Amazon Augmented AI A2I

Human review of ML results

Brings humans into the loop for checking ML predictions (human-in-the-loop): when confidence is low or by random sampling, results are routed to human reviewers (internal staff, vendors, or Mechanical Turk).

  • Cost$ Low
  • Difficulty●●●●●
  • Costs money when idle?No
  • Serverless

Scope: Regional

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Think of it asLike the chief accountant signing off on invoices the machine couldn't read with confidence.

When to use it

✓ Use it when

Results from Textract, Rekognition, or your own models need human confirmation before use.

✗ Avoid it when

You need to label data to train models → SageMaker Ground Truth.

Common uses

  • Re-review low-confidence invoice extractions
  • Moderate sensitive content
  • Random-sample checks of model quality

What does it cost?

  • Pricing model: Charged by the number of objects reviewed by humans, plus fees paid to the review workforce if using Mechanical Turk or vendors.

Reference prices for us-east-1, updated October 14, 2026; they may have changed. Always check the AWS pricing page.

Related services

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