Microsoft 365 Copilot vs Writesonic
Compare Microsoft 365 Copilot and Writesonic on features, pricing, and buyer fit using the same researched criteria.
Microsoft 365 Copilot
Workspace LLM assistant add-on — Copilot Business from $21/user/mo annual; Enterprise add-on $30/user/mo annual on a qualifying Microsoft 365 base licence.
Best for
- • Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
- • IT buyers who need tenant admin and Graph grounding
- • Enterprises already paying for E3/E5 who can absorb the $30 add-on
Starting from $21.00/user/mo
No free plan
VS
Our verdict
No universal winner. Choose based on which criteria matter most for your team.
Microsoft 365 Copilot is better for
- ✓ LLM assistant depth
- ✓ Writing assistance
- ✓ Voice / TTS depth
- ✓ Agent / builder depth
Writesonic is better for
- ✓ Usage / credits model
Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
Choose Writesonic if: Marketing and SEO teams tracking brand citations in AI-generated answers
Writesonic
AI search growth (GEO/AEO) and content platform — free trial on paid tiers; Starter $79/mo annual ($199 Basic, $399 Growth); Enterprise custom.
Best for
- • Marketing and SEO teams tracking brand citations in AI-generated answers
- • Agencies managing AI visibility plus content production for clients
- • Growth teams investing in GEO/AEO alongside traditional SEO
Starting from $79.00/user/mo
No free plan
Microsoft 365 Copilot vs Writesonic pricing
Microsoft 365 Copilot researched starting price from $21/mo. Writesonic researched starting price from $79/mo. Affiliate economics excluded.
Microsoft 365 Copilot
From $21.00/user/mo
Writesonic
From $79.00/user/mo
Microsoft 365 Copilot
Starting from $21.00/user/mo
No free trial evidenced
- Copilot Business (add-on)Popular$21.00/user/mo
- $21/user/mo billed annually — SMB Copilot add-on on a qualifying Business plan (≤300 seats typical).
- Copilot (Enterprise add-on)$30.00/user/mo
- $30/user/mo billed annually — enterprise Copilot add-on on E3/E5-class Microsoft 365.
- Enterprise / volumeCustom
- Volume, education, and frontline packaging — confirm with Microsoft or a Cloud Solution Provider.
Writesonic
Starting from $79.00/user/mo
Free trial available
- Starter$79.00/mo
- Basic$199.00/mo
- Growth$399.00/mo
- Enterprise$0.00/user/mo
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Microsoft 365 Copilot
$315.00/mo
Writesonic
$1,185.00/mo
+$870.00/mo — Writesonic costs more
Verified monthly unit prices · Aug 18, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
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