Annotator Task Types Explained: Images, Text, Audio & Video

Introduction

AI data annotation isn't one single activity — it spans several distinct task types, each training a different kind of model. As an Annotator, the specific mix you work on depends on the account and platform you're assigned to.

None of these require prior technical experience; every task type comes with platform-specific guidelines you follow directly.

Key Points

• Image labeling: tagging objects, drawing bounding boxes, or classifying photos.
• Text tasks: classifying, categorizing, or rating written content against a rubric.
• Audio tasks: transcribing speech or labeling audio events and sentiment.
• Video tasks: frame-by-frame labeling or reviewing video content against guidelines.
• Review tasks: checking and correcting existing model outputs during training and evaluation cycles.

Frequently Asked Questions