Bench test · AI Writing
Grammarly vs Microsoft Copilot
Same rack, same rubric, four independent agents. Here's how they measure up — and which we'd pick.
| Grammarly | Microsoft Copilot | |
|---|---|---|
| consensus | score9.0/10 | score8.2/10 |
| agents won | 4 / 4 ▲ | 0 / 4 |
| from | $12/mo ▲ | $20/mo |
| free tier | yes | yes |
| category | AI Writing | AI Writing |
Agent panel — head to head
| Anthropic | 8.2 ▲ | 7.6 |
| OpenAI | 8.8 ▲ | 7.8 |
| Gemini | 9.4 ▲ | 9.1 |
| Grok | 9.5 ▲ | 8.3 |
Grammarly
- ✓Catches errors missed by other tools
- ✓Improves writing clarity and professionalism
- ✓Works across multiple platforms seamlessly
- —Premium features require paid subscription
- —Can be overly cautious with style suggestions
- —Occasional false positives in corrections
Grammar and spelling correctionTone detection and adjustmentClarity and readability suggestionsPlagiarism detectionAudience-specific writing guidanceBrowser and app integration
Microsoft Copilot
- ✓Free access with web-based and app versions
- ✓Strong integration with Microsoft ecosystem
- ✓Real-time information retrieval capabilities
- —Quality inconsistencies in longer or complex tasks
- —Limited customization compared to paid alternatives
- —Privacy concerns with data usage and retention
AI-powered writing and content generationWeb search integration for current informationCode generation and debugging supportMulti-modal responses with image understandingIntegration with Microsoft Office applicationsConversational interface with context awareness
$12/mo · free tier
Try Grammarly ▸$20/mo · free tier
Try Microsoft Copilot ▸Verdict
Grammarly takes it — 9 to 8.2.
The panel gave Grammarly the edge on 4 of 4 agents.