Smith.ai AI Receptionist vs Microsoft 365 Copilot Business

Side-by-side from the Top 11 rankings of MyCase vs Clio vs CoCounsel: 11 Best AI for Law Firms 2026 and ChatGPT vs Microsoft Copilot vs Zapier Agents: 11 Best AI Agents for Small Business 2026. Last verified October 1, 2026.

The short answer

Microsoft 365 Copilot Business ranks higher on Top 11 (#4 vs #7) for Managing partners, firm administrators and operations leads at United States law firms of roughly 2 to 50 lawyers, on Clio, MyCase, Smokeball or Microsoft 365, who are deciding which AI to buy first and want it to work inside the systems they already pay for. / Owners, founders and operations leads at United States companies under 500 people who have decided to buy an AI agent, have no engineer on staff, and want to know which one to pay for, what it costs at five or fifty people, and which of them is wrong for their business.. Cheapest agent to deploy if you already run Microsoft, because deployment is a licence change.

At a glance

Smith.ai AI ReceptionistMicrosoft 365 Copilot Business
Top 11 rank#7 / MyCase vs Clio vs CoCounsel: 11 Best AI for Law Firms 2026#4 / ChatGPT vs Microsoft Copilot vs Zapier Agents: 11 Best AI Agents for Small Business 2026
Score (out of 9.4)7.97.6
Best forFirms losing intake calls that want them in ClioCompanies already on Microsoft 365 whose work lives in Outlook, Excel and Teams
Pricing$ (Free $0 for 25 calls a month then $3 a call; Pro $150 for 75 calls, $270 for 150, $500 for 300; Enterprise from $500 for 300 calls and $800 for 500; per extra call rates printed)$$ (Microsoft 365 Copilot Business $18.00 per user per month paid yearly, promotional against a standard $21.00, or $25.20 month to month; the full Microsoft 365 Copilot is $30.00 per user per month paid yearly; Copilot Studio credit packs $200.00 for 25,000 credits a month)
HQ—Redmond, Washington
Founded——

Smith.ai AI Receptionist

Free to 25 calls, every overage rate printed, and Clio named as a native integration.

smith.ai/pricing/ai-receptionist

See full entry in MyCase vs Clio vs CoCounsel: 11 Best AI for Law Firms 2026

Microsoft 365 Copilot Business

Cheapest agent to deploy if you already run Microsoft, because deployment is a licence change.

www.microsoft.com/en-us/microsoft-365-copilot/business

See full entry in ChatGPT vs Microsoft Copilot vs Zapier Agents: 11 Best AI Agents for Small Business 2026

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.