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2026 comparison
Claude Sonnet 4.5 vs Microsoft Copilot
Side-by-side analysis, no fluff. We've tested both in real-world conditions.
Summary table
Criterion
C
Claude Sonnet 4.5
Freemium
M
Microsoft Copilot
Freemium
Score
4.9 / 5
4.3 / 5
Category
Chatbots & Assistants
Chatbots & Assistants
Pricing
Freemium
Freemium
Badge
Editor's choice
Top picks
C
What's best about Claude Sonnet 4.5
The assistant with the best long-context reasoning on the market.
Highlights
- 200K-token context, no drift
- Beats GPT-4o on long analytical tasks
- Artifacts: edits code and docs live
- Generous Pro plan usage limits
M
What's best about Microsoft Copilot
Microsoft's AI assistant integrated across all of Office 365.
Highlights
- Integrated into Word, Excel, PowerPoint, and Teams
- Free in Edge browser with internet access and DALL-E 3
- Auto-summarizes Teams meetings natively
- Copilot Studio to build your own AI agents
Quick verdict
Claude Sonnet 4.5 is the obvious pick if you value the assistant with the best long-context reasoning on the market..