Most organizations that pay for Microsoft 365 Copilot are using maybe sixty percent of it. The missing forty percent sits one click away, under Agents in Copilot Chat: Researcher and Analyst, both GA, both included with the license you already have, both routinely ignored because nobody explained when to use them instead of the chat box they're already typing in.
That's the question this guide answers first, because it's the one that matters.
The decision table
Standard chat is a sprinter: one retrieval pass, one answer, seconds. Researcher and Analyst are deliberately slower, multi-step, and they show their work. Use the wrong one and you'll either wait minutes for what chat does in seconds, or get a shallow chat answer to a question that needed depth.
| Your task |
Use |
| "What did the email say?" / quick summary / draft a reply |
Standard chat |
| Synthesize web sources + internal files + meetings into one structured, cited report |
Researcher |
| "Should we enter this market?" — needs reasoning across many sources, not one lookup |
Researcher |
| Find patterns, drivers, or anomalies in a dataset |
Analyst |
| One formula or chart in a spreadsheet you have open |
Excel Copilot |
| Anything where you'll forward the output to someone who'll ask "says who?" |
Researcher (built-in citations) |
The tell for Researcher: your question has the word and in it at the strategy level — competitors and our internal docs and what was said in meetings. The tell for Analyst: the answer is a number, a ranking, or a pattern, and you'd be suspicious of anyone who produced it without showing math.