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Amazon SageMaker Ground Truth

Label training data

A service for creating labeled training data: assigns labeling of images, text, video, and point clouds to internal staff, vendors, or Mechanical Turk; can use automated labeling (active learning) to reduce the workload.

  • Cost$$ Medium
  • Difficulty●●●●●
  • Costs money when idle?No
  • Managed by AWS
  • In examsSAA

Scope: Regional

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Think of it asLike a product labeling workshop: many people sort items together while a machine gradually learns to label the easy ones itself.

When to use it

✓ Use it when

You need high-quality labeled datasets to train models.

✗ Avoid it when

You only need humans to review predictions from a model already running → Augmented AI (A2I).

Common uses

  • Draw bounding boxes around objects in images for self-driving cars
  • Label text sentiment
  • Create evaluation data for generative AI models

What does it cost?

  • Pricing model: Charged by the number of objects labeled, plus fees paid to the labeling workforce (Mechanical Turk, 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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