Grammarly vs Notion AI

Grammarly

Pros

• Works nearly everywhere you type, which is a genuinely different experience from a standalone editor
• Real-time suggestions catch errors before you hit send, not after
• Free tier covers the core grammar and spelling checking most people actually need

Cons

• Full generative rewriting and advanced tone features are gated behind paid tiers
• Suggestions on stylistic choices can be overzealous, flagging intentional phrasing as an error
• Business and Enterprise pricing is a real step up from the individual plan

Notion AI

Pros

• Answers are grounded in a team's actual pages, not generic knowledge, which general chatbots can't replicate without setup
• Removes the need to copy content out to a separate AI tool and back
• Meeting notes save real time turning a recording into a usable page

Cons

• Full AI features require the Business plan, not the cheaper Free or Plus tiers
• Custom Agents bill separately by credit on top of the base subscription
• Less capable as a general-purpose writing assistant than a dedicated tool built for that job

Grammarly is the better fit for:

• Proofreading emails, documents and social posts as you write them
• Adjusting tone for a specific audience or context
• Catching grammar and clarity issues across every app you write in
• Rewriting stiff or wordy drafts into cleaner prose
• Holding a whole team's writing to one house style
• Writing confidently in a second language across every app you use

Notion AI is the better fit for:

• Summarizing and searching across a team's existing documentation
• Drafting and editing content directly inside project pages
• Turning meeting recordings into structured notes
• Automating multi-step tasks across a workspace with Custom Agents
• Summarising or classifying every row of a database automatically
• Answering a question from the wiki without knowing which page holds it