Microsoft Copilot
Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365
Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365
Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources
Microsoft Copilot and Gemini Notebook are both AI Assistants tools. Gemini Notebook scores higher in FinderAtlas's editorial review (8.7 vs 8.4 out of 10), led by value for money. Both have a free plan or trial. Only Microsoft Copilot is available on Windows and macOS.
Gemini Notebook
19 features compared.
Limited means partial support or a paid add-on.
Plans as listed by each vendor. Check their sites for current prices.
$0
Free with a signed-in Microsoft account; some features have usage limits
$9.99/month
One person; includes desktop Office apps and Copilot with higher usage than free
$19.99/month
Up to 6 people on the plan, with AI features for the owner; replaced Copilot Pro
$25.20/user/month
Add-on for small and medium businesses; needs an eligible Microsoft 365 plan
$0
Free with a Google Account
$4.99/month
Through the Google AI Plus subscription
$19.99/month
Through the Google AI Pro subscription
$99.99/month
Through the Google AI Ultra subscription
$199.99/month
Through the Google AI Ultra subscription at the higher tier
Scored out of 10 by the Finder Atlas editorial team. Last reviewed November 2026.
Microsoft Copilot leads in 0 categories and Gemini Notebook in 1.
Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.
Picked by our editors. Not paid placement.
AI Assistants
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AI Assistants
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OpenAI's AI assistant for writing, research, coding, image generation and voice chat
It depends on your workflow. Microsoft Copilot is built for drafting and summarizing inside Word. Gemini Notebook is built for summarizing and questioning your own documents.
Microsoft Copilot: Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365. Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources.
Yes, both do. Microsoft Copilot is freemium and Gemini Notebook is freemium, and each has a free plan or trial.
Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.