What it means
Putting a category or tag on a piece of data: an image, a sentence, a search result, a clip of audio. Usually short, repeated tasks. Postings mostly use it to mean the same as annotation.
Used in: Data annotation roles.
In open roles right now
517 of the open roles we list mention “labelling” in the title or description, on 38 platforms (as of 23 October 2026). Of those that state an hourly rate (147 distinct postings), the median is $35/hr, and the middle half pay $20 to $50.
Most of them on: Alignerr (141), Rise Data Labs (80), Welo Data (55), RWS TrainAI (35), TSMG (32), HumanSignal (26), and 32 more.
Related terms
AnnotationAdding information to raw data so a model can learn from it: tags on text, boxes on images, timestamps on audio.Bounding boxA rectangle drawn around an object in an image or video frame, with a label such as “car” or “pedestrian”.LiDARA sensor that measures distance with laser pulses and produces a 3D “point cloud”.SegmentationMarking the exact outline of objects in an image, pixel by pixel, rather than drawing a box round them. ← JailbreakPrevious term, A to Z. LiDAR →Next term, A to Z. The whole glossaryEvery term on one page, A to Z.Open →