Chat & research · by Microsoft
Microsoft Copilot
Microsoft's assistant, free on the web and Windows, and embedded in Word, Excel, PowerPoint, Outlook and Teams with Microsoft 365 Copilot.
+ Works inside the Office apps you already use, drafting Outlook replies, summarizing Teams meetings and turning Word docs into PowerPoint decks.
− Results inside Excel and PowerPoint are often shallow compared with the standalone chat, which makes the $30 business seat hard to justify.
Open Microsoft Copilot ↗ best for: Microsoft 365 organizations
Evidence
rank #59 of 257Head to head: Gemini vs Microsoft Copilot Grammarly vs Microsoft Copilot Microsoft Copilot vs Gamma Microsoft Copilot vs Plus AI
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+ Produces natural, editable prose and follows nuanced instructions over very long documents better than most rivals.
− Pro usage limits can run out mid-session on long conversations, and it has no built-in image generation.
+ The broadest feature set in one place: Deep Research, code-executing data analysis on uploaded spreadsheets, voice mode and a huge library of custom GPTs.
− Free and Plus tiers hit message caps on the best models at busy times, and answers can be confidently wrong without citations unless you ask it to search.
+ Deep Research produces long cited reports from dozens of sources, and it reads your Gmail, Drive and Calendar directly when you allow it.
− Quality swings between Flash and Pro models, and it refuses or hedges on some topics more than competitors.
+ Every answer comes with clickable sources, and Pro lets you switch between frontier models from OpenAI, Anthropic and Google.
− Citations sometimes do not actually support the sentence they are attached to, so you still have to click through for anything important.
+ Completely free and already inside WhatsApp and Instagram, so there is nothing to install or pay for.
− Weaker at reasoning and long documents than paid assistants, cannot be removed from WhatsApp, and is unavailable or limited in some regions.