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Most buyers should pick Grammarly.
Choose Grammarly if you need proofreading, tone suggestions, and sentence rewrites: its Free plan costs €0, and Pro is listed at €12/month. The published CoPilot AI pricing, however, describes LinkedIn prospecting campaigns and requires Sales Navigator—not the Microsoft Copilot research-and-writing assistant in its product summary. Its Core plan is listed at $199/month on annual billing, with monthly pricing unpublished. Confirm which product you mean before treating these as direct substitutes.
01Side by side
| Grammarly | CoPilot AI | |
|---|---|---|
| Starting price | €12/month for Pro; Free plan also available | $199/month Core, annual billing; monthly price unpublished |
| Free plan | Yes; includes 100 AI prompts monthly | No free plan listed for the priced product |
| Best for | Proofreading, tone, clarity, and writing assistance | LinkedIn prospecting, according to the pricing details |
| Core strength | Full-sentence rewrites and writing suggestions | Prospecting message quotas; product details conflict |
| Learning curve | Not published | Not published |
| Integrations/data | Works in apps like Zendesk and other text boxes | Sales Navigator required per user; other integrations not published |
| Team/seat costs | Enterprise pricing is custom | Teams price per user; exact rate not published |
| Support | Dedicated support listed for Enterprise | Support details not published |
Grammarly Choose Grammarly if
- Choose Grammarly if you want a free proofreading plan.
- Choose Grammarly if you need tone and clarity suggestions in your writing.
- Choose Grammarly if full-sentence rewrites justify €12/month for Pro.
CoPilot AI Choose CoPilot AI if
- Choose CoPilot AI if you want prospecting campaigns and message quotas.
- Choose CoPilot AI if you already use LinkedIn Sales Navigator.
- Choose CoPilot AI only after confirming this is the product you mean.
02Pricing compared
Grammarly is the clearer price comparison: its pricing page lists a Free plan at €0 and Pro at €12 per month. Free includes 100 AI prompts monthly; Pro raises that to 2,000 per member and adds full-sentence rewrites, plagiarism and AI-text detection, and one style guide. Annual pricing is not published on the vendor's site.
The published CoPilot AI pricing lists Core at $199 per month equivalent on annual billing and Guided at $299. Bi-annual options are listed at $246 and $343 per month; monthly prices are not published. Core includes 600 connection messages and 800 nurture messages monthly, but also requires a separate LinkedIn Sales Navigator subscription, whose price is not published. These plans describe LinkedIn prospecting, not the Microsoft research-and-writing assistant in the product summary. Confirm the product before comparing costs.
03Features and depth
Grammarly is built around writing that already exists: proofreading, tone suggestions, clarity and structure fixes, and paragraph rewrites. Its homepage also lists a Humanizer agent and an AI Detector agent. Pro adds full-sentence rewrites, tone adjustment, plagiarism and AI-text detection, plus one style guide and one brand tone. The Free plan is narrower, with grammar help, tone visibility, and 100 AI prompts per month.
The product summary for Microsoft Copilot describes a broader assistant: chat, web research, information summaries, work-file discovery, content creation, and image generation. But the published pricing for “CoPilot AI” instead describes prospecting campaigns, message limits, and AI-generated sales replies. It lists Core and Guided at one user each, with 10 campaigns and monthly message caps. That mismatch makes a feature-for-feature verdict unreliable. These tools may overlap in drafting, but the published details do not establish that the priced prospecting product is Microsoft Copilot.
04Ease of use and learning curve
Grammarly is the more focused choice if the job is fixing writing as you type. The product summary says it works inside apps such as Zendesk and other text boxes, so its core use is reviewing and improving existing text rather than learning a separate prospecting workflow. Free is enough to try its proofreading and tone features, though its 100 monthly AI prompts are limited.
Microsoft Copilot is described as a chat assistant for research, writing, and everyday tasks, which is a different workflow. The published CoPilot AI plans, however, require LinkedIn Sales Navigator and revolve around campaigns and outreach-message quotas. Because the product identity is unclear, we would verify the exact tool and its account requirements before switching or training a team.
Questions people ask
Does Grammarly have a 24-hour customer support phone number?
The published Grammarly details do not publish a customer-support phone number or confirm 24-hour phone support. Pro includes a style guide and other writing features, while Enterprise lists dedicated support, but the available information does not specify its hours or contact method. Check Grammarly’s current support information before relying on phone access.
Which AI writing tool is best?
It depends on the task. Grammarly’s listed features focus on proofreading, tone, clarity, and sentence rewrites. The Microsoft Copilot summary describes chat, research, summaries, and content creation. But the published CoPilot AI prices appear to cover LinkedIn prospecting instead, so verify the product before comparing them as writing tools.
Is Grammarly a good AI tool?
Grammarly looks suited to editing and refining text: its Free plan includes proofreading, tone visibility, and 100 AI prompts monthly, while Pro adds full-sentence rewrites and detection features. Whether Pro is worth €12 per month depends on how often you need those extras; the published review says casual writers may find the cost hard to justify.
What is better, Quillbot or Grammarly?
We can’t make a grounded comparison from the published information: it includes Grammarly’s features and pricing but gives no Quillbot plans, limits, or capabilities. Grammarly’s listed strengths are proofreading, tone suggestions, and rewrites. Compare current prices and the specific editing features you need before choosing between them.