Source coverage: standard. Reviewed 10–12 sources. Using the 5 strongest. ChatGPT performs at a very high level across general knowledge work, especially for drafting, rewriting, summarizing, ideation, structured analysis, and coding assistance. Its biggest strength is breadth: it handles many common tasks well inside one polished interface. Output quality is usually strong, but reliability still depends on prompt quality and task complexity, and factual verification remains necessary for high-stakes use.