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Microsoft Copilot vs. Windsurf (ehem. Codeium)

A practical comparison of Microsoft Copilot and Windsurf (ehem. Codeium) across pricing, GDPR, EU AI Act risk, and workflow fit.

microsoft

Microsoft Copilot

Microsoft's AI assistant for web and Microsoft 365

DSGVO: conformEU-AI-Act: limitedFree tier

codeium

Windsurf (ehem. Codeium)

Cascade agent in its own IDE — generous free tier

DSGVO: partialEU-AI-Act: limitedFree tier

Side-by-side comparison

FactorMicrosoft CopilotWindsurf (ehem. Codeium)
PricingFree tierFree tier
GDPRconformpartial
EU AI Actlimitedlimited
Data residencyeuus
Use casesText, Image, Data / Tables, Create contentText, Code, Build & code
Data quality
Updated6/15/20266/15/2026

Choose Microsoft Copilot when

Web chat (free) plus Copilot for Microsoft 365 in Word, Excel, Outlook, Teams, PowerPoint. Built on GPT models with Bing search.

Choose Windsurf (ehem. Codeium) when

Own IDE with Cascade agent + Codeium plugin for VS Code/JetBrains. Free tier with unlimited completions.

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