completion

Definition

The text a model produces as a continuation of the prompt. The prompt/completion split is the older API framing — you send context, the model extends it — and it survives in billing, logging, and token-accounting even where the interface is now chat-shaped. The same word covers code completion, where the continuation happens to be code rather than prose.

Explainers using this term

• Paper Walkthrough: FrontierChallenge — Grading Scientific Work on Whether It Was Actually DeliveredFrontierChallenge: Evaluating Scientific Workflow Completion
• Paper Walkthrough: SemComp-Bench — Asking Video Generators 'So Did It Actually Get Done?'SemComp-Bench: Benchmarking Semantic Task Completion in Video Generation