ChatGPT is AI assistant with voice mode and Microsoft Copilot is AI assistant for Microsoft 365. We compared both — and added Lucy OS1 to the mix so you can see the full picture.
TLDR:ChatGPT and Microsoft Copilot are both capable tools in their respective categories. Neither offers persistent cross-session memory, automatic calendar and email awareness, or the always-on working presence that modern knowledge workers need. Lucy OS1 was built specifically for this gap — it remembers your context across every session, reads your live calendar and inbox, and stays present alongside your work. Both ChatGPT and Microsoft Copilot are solid for their core use cases; Lucy OS1 is the alternative if you want an AI that genuinely knows you.
CHATGPT · OPENAI
AI assistant with voice mode — "Get answers. Find inspiration. Be more productive."
Pricing: Free tier available; ChatGPT Plus $20/month, Pro $200/month
MICROSOFT COPILOT · MICROSOFT
AI assistant for Microsoft 365 — "Your AI companion."
Pricing: Free tier; Copilot Pro $20/month; Copilot for Microsoft 365 $30/month (enterprise)
| Feature | ChatGPT | Microsoft Copilot |
|---|---|---|
| Cross-session memory |
Partial — opt-in
ChatGPT Memory is opt-in and summarises facts rather than full session recall
|
No
Copilot does not retain memory between sessions
|
THERE IS A THIRD OPTION
While both ChatGPT and Microsoft Copilot are strong in their domains, neither has the Neural Memory that Lucy OS1 brings. Lucy remembers your projects, your calendar, and your preferences across every single conversation — without you having to repeat yourself.
Lucy outperformed ChatGPT on 5 features and Microsoft Copilot on 5 features in our full head-to-head comparisons. It reads your Google Calendar and Gmail before each session, and it is designed to stay open alongside your work — not just respond when you ask.
Try Lucy OS1 FreeCOMPARE CHATGPT WITH OTHER TOOLS
COMPARE MICROSOFT COPILOT WITH OTHER TOOLS
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