# Gemini vs Microsoft Copilot: who uses which

On usedby, 77 companies use Gemini and 4 use Microsoft Copilot. 1 company uses both, including WPP. 1 of them is known through a job post (the weakest proof) on at least one side. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-10-19: 81 of 81 public lines checked.

## Side by side

|  | [Gemini](https://www.usedby.ai/tools/gemini.md) | [Microsoft Copilot](https://www.usedby.ai/tools/microsoft-copilot.md) |
|---|---|---|
| Public customers | 77 | 4 |
| Confirmed | 75 | 0 |
| Observed | 0 | 0 |
| Signals (job posts) | 2 | 4 |
| Top industries of customers (every proof level) | Artificial Intelligence (13), Data & Analytics (6), DevTools & Infrastructure (5) | Agency & Studio (1), Data & Analytics (1), Legal & Compliance (1) |
| Category | AI assistants | AI assistants |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, Gemini | Proof, Microsoft Copilot | First public proof, Gemini | First public proof, Microsoft Copilot |
|---|---|---|---|---|
| [WPP](https://www.usedby.ai/companies/wpp.md) | Confirmed | Signal (job post) | On or before October 2026 | Job post, September 2026 |

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Source: https://www.usedby.ai/compare/gemini-vs-microsoft-copilot · How we check: https://www.usedby.ai/methodology