Side by side
Microsoft Copilot vs Onyx
Both stand on ai chatbots and assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan WebWindowsMac+2
Copilot offers a free entry point and paid Microsoft 365 plans with different levels of AI usage and bundled apps. Compare the plan-specific usage, storage, and family access terms before subscribing.
Visit Microsoft Copilot Free plan Open source APIExtensionLinux+4
Visit Onyx The facts
| Microsoft Copilot | Onyx | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Web, Windows, Mac, iPhone, Android | API, Extension, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Microsoft 365 Personal: $99.99 a year | Business: $20 a month |
| Plans published | 5 | 3 |
| Maker | Microsoft Copilot | Not published |
| Website | copilot.microsoft.com | onyx.app |
| On ai chatbots and assistants | #4 of 65 | #1 of 65 |
Microsoft Copilot: what it does well
- Available on web, Windows, macOS, iOS, and Android.
- Supports web search, file uploads, and image generation.
- Free plan is available.
- Microsoft 365 plans bundle Copilot with productivity apps.
What to know first
- Free access is subject to capacity and usage limits.
- Family plan AI features are for the subscription owner only.
- AI-generated audio is English only.
- Agentic AI usage varies by plan.
Onyx: what it does well
Alternatives to Microsoft Copilot Alternatives to Onyx The whole list
