Microsoft 365 Copilot vs Synthesia
Compare Microsoft 365 Copilot and Synthesia 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
- ✓ Voice / TTS depth
- ✓ Agent / builder depth
- ✓ Governance & privacy
- ✓ Integrations
Synthesia is better for
- ✓ Free plan
- ✓ Usage / credits model
Tie
- • LLM assistant depth
- • Writing assistance
Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
Choose Synthesia if: L&D and enablement teams producing talking-head explainers

Synthesia
AI avatar video studio — Basic free (watermark, no MP4); Starter $18/mo annual ($29 monthly); Creator $64/mo annual ($89 monthly); Enterprise quote.
Best for
- • L&D and enablement teams producing talking-head explainers
- • Internal comms that need on-brand avatars without a film crew
- • Creator/Enterprise buyers who need API, SSO, or SCORM
Starting from $18.00/user/mo
Free plan available
Comparison scorecard
Criterion-by-criterion results for Microsoft 365 Copilot and Synthesia. Numeric bars appear only when both products have approved scores.
- Depends
Starting pricing
Published floor price and what that floor actually includes.
Microsoft 365 Copilot researched starting price from $21/mo; Synthesia researched starting price from $18/mo; a free plan is researched. Better value depends on plan rungs and add-ons.
Microsoft 365 CopilotDependsSynthesiaDepends - Synthesia
Free plan
Whether a usable free plan is published, and what it gates.
Microsoft 365 Copilot does not research a free plan; Synthesia researches a free plan.
Microsoft 365 CopilotWeakerSynthesiaStronger - Depends
User / licence minimum
Seat floors, per-employee minimums, and small-team pricing traps.
Check user minimum for Microsoft 365 Copilot and Synthesia on current vendor packaging.
Microsoft 365 CopilotDependsSynthesiaDepends - Tie
LLM assistant depth
Chat, reasoning, and general-purpose assistant depth for the primary job.
Microsoft 365 Copilot and Synthesia are close on llm chat depth (8/10 vs 8/10) from approved SoftwareGlimpse editorial assessments — not hands-on lab testing.
Microsoft 365 CopilotTieSynthesiaTie - Tie
Writing assistance
Long-form writing, editing, and document analysis quality.
Microsoft 365 Copilot and Synthesia are close on writing depth (8/10 vs 8/10) from approved SoftwareGlimpse editorial assessments — not hands-on lab testing.
Microsoft 365 CopilotTieSynthesiaTie - Microsoft 365 Copilot
Voice / TTS depth
Speech, voice mode, and text-to-speech capability when relevant.
Stronger voice tts availability
Microsoft 365 CopilotStrongerSynthesiaWeaker - Microsoft 365 Copilot
Agent / builder depth
Custom projects, agents, GPTs, and workflow builders beyond bare chat.
Stronger agent builder availability
Microsoft 365 CopilotStrongerSynthesiaWeaker - Microsoft 365 Copilot
Governance & privacy
Admin controls, data retention, and enterprise privacy packaging.
Microsoft 365 Copilot leads on governance (9/10 vs 8/10) from approved SoftwareGlimpse editorial assessments — not hands-on lab testing.
Microsoft 365 CopilotStrongerSynthesiaWeaker - Microsoft 365 Copilot
Integrations
Important third-party integrations.
Microsoft 365 Copilot leads on integrations (10/10 vs 7/10) from approved SoftwareGlimpse editorial assessments — not hands-on lab testing.
Microsoft 365 Copilot10/10Synthesia7/10 - Synthesia
Usage / credits model
How free caps, seats, credits, and overages affect real cost.
Synthesia leads on usage model (6/10 vs 7/10) from approved SoftwareGlimpse editorial assessments — not hands-on lab testing.
Microsoft 365 CopilotWeakerSynthesiaStronger
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