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MicrosoftLegal practice

Copilot for legal practice

Microsoft's AI layer that combines GPT and Claude models with your own organisational data and the Microsoft 365 apps.

Recommended for legal practice

Copilot is strong in deep Microsoft 365 integration and grounding on your own data via Microsoft Graph; that suits reviewing contracts and clauses.

GDPR profileOur summary of what the provider itself publishes about your data: EU hosting possible, no training on your data for business use, and self-hosting available. Caution applies to a model with a documented problem, such as an investigation by a regulator. How we measure
GDPR: Caution
QualityQuality from blind duels on LMArena: users choose between two anonymous answers. A difference of about 20 points is noticeable, a few points is noise. How we measure
1485Elo, independent
Editorial scoreOur own assessment on 10 of suitability for professional work, price and privacy. This is a judgement, not a measurement; that is why it always sits alongside the Elo. How we measure
8,3
Entry price
from €10 / month
Full GDPR check

What Copilot does in legal practice

Core tasks in legal practice
Where Copilot is strong
  • Deep Microsoft 365 integration
  • Grounding on your own data via Microsoft Graph
  • Strong enterprise governance and compliance
  • Choice between GPT and Claude models

Copilot has a specific GDPR concern. The Claude models within Copilot officially fall outside the EU Data Boundary. If you want strictly EU-only processing, exclude the Claude models in the admin panel. Weigh this heavily before using it in legal practice.

Confidentiality and GDPR

GDPR: Caution

Professional secrecy is mandatory. Only enter client data into a business/EU variant with a data processing agreement, where input is not used for training. Always keep a lawyer in the loop.

Microsoft 365 Copilot (business) falls under the EU Data Boundary and does not train on tenant data. Consumer Copilot does train by default, with an opt-out.

Rule of thumb Use the business variant with a data processing agreement, and keep a human in the loop for decisions that matter.
Caution the Claude models within Copilot officially fall outside the EU Data Boundary. If you want strictly EU-only processing, exclude the Claude models in the admin panel.

Prices

Microsoft 365 Personal/Familyfrom €10 / monthPersonal €10/month, Family €13/month, Premium €22/month (higher Copilot limits); Copilot Pro has been discontinued
M365 Copilot Business$21 / seat / monthAnnual ($25.20 monthly); limited-time offer from $18; requires an M365 licence
M365 Copilot (Enterprise)$30 / seat / monthAdd-on to an M365 licence; $31.50 when billed monthly

Other models for legal practice

Claude for legal practiceAnthropic · editorial 9.01506Le Chat (Mistral) for legal practiceMistral AI · editorial 8.41426Perplexity for legal practicePerplexity AI · editorial 8.0–Gemini for lawGoogle · editorial 8.61527
All options for legal practice
Professional tools on Copilot

We know of no professional tool for legal practice that publicly runs on Copilot.

Questions about Copilot for legal practice

Is Copilot suitable for legal practice?
Yes. Copilot is strong in deep Microsoft 365 integration and grounding on your own data via Microsoft Graph, which fits legal practice well. Always assess the specific task and keep a professional in the loop.
Can I put confidential data into Copilot?
Confidentiality is mandatory. Only enter client data into a business/EU variant with a data processing agreement, where input is not used for training. Always keep a lawyer in the loop. Microsoft 365 Copilot (business) falls under the EU Data Boundary and does not train on tenant data. Consumer Copilot does train by default, with an opt-out.
How much does Copilot cost?
There is Microsoft 365 Personal/Family (from €10 / month), M365 Copilot Business ($21 / seat / month), M365 Copilot (Enterprise) ($30 / seat / month). Check current prices on the official site.
Next stepAll 45 options for legal servicesProfessional tools and general assistants side by side, compared on GDPR profile, price and quality.

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