Microsoft 365 Copilot vs GPT for Sheets and Docs
A detailed comparison to help you choose between Microsoft 365 Copilot and GPT for Sheets and Docs.
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Verdict: GPT for Sheets and Docs wins
GPT for Sheets and Docs scores 4.2/5, edging out Microsoft 365 Copilot at 4.0/5. SEO, e-commerce, sales-ops and research teams that need AI applied to hundreds or thousands of spreadsheet rows per week and want per-row cost control rather than a chat subscription.
Microsoft 365 Copilot AI built into Word, Excel, PowerPoint, Teams | GPT for Sheets and Docs AI-powered automation for Google Workspace | |
|---|---|---|
| Rating | 4.0 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | freemium |
| Starting Price | From $30/mo | Free tier available |
| Best For | Organisations already standardised on Microsoft 365 whose staff live in Outlook, Teams and Excel, and who will license by role after a measured pilot. | SEO, e-commerce, sales-ops and research teams that need AI applied to hundreds or thousands of spreadsheet rows per week and want per-row cost control rather than a chat subscription. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team featuressso | free tierapi accessno code |
| Visit Microsoft 365 Copilot → | Visit GPT for Sheets and Docs → |
Microsoft 365 Copilot
Pros
- + Grounding in tenant data produced genuinely accurate meeting recaps and thread summaries in my tests
- + Excel analysis generated working formulas and clear narratives on real sales data in one pass
- + Copilot Chat is included at no extra cost for eligible Microsoft 365 users, so basic access is effectively free
- + Copilot Studio's Chat and Standard harness is included for licensed users building internal agents
- + Enterprise data protection, compliance controls and adoption analytics are built in
Cons
- - $30/user/month add-on requires a qualifying Microsoft 365 licence, so cost stacks on top of existing subscriptions
- - New usage-based billing for advanced AI features makes the subscription price a floor rather than a ceiling
- - Retrieval surfaced a stale lookalike file instead of the current document in my testing — tenant hygiene decides quality
- - Drafts still assert claims not present in source material and always need review
- - $18 promotional Copilot Business price is first-year only and reverts to $21, and Business plans cap at 300 users
GPT for Sheets and Docs
Pros
- + Cell-level functions (GPT, GPT_TRANSLATE, GPT_EXTRACT, GPT_CLASSIFY) process thousands of rows independently, and in my 500-row test a deliberately exhausted credit balance reported the run as interrupted while preserving per-row success/failure counts
- + Pay-as-you-go to subscription economics with $25/month Standard including $25 of usage and shared extra-usage pools on Business at $45/seat — no per-seat AI lock-in for spiky agency workloads
- + Enterprise plumbing is real: ISO 27001 certification, SAML SSO on Enterprise, BYOK/custom endpoints, zero-data-retention options and a stated no-training policy (vendor documentation)
- + Model breadth across OpenAI, Anthropic, Google and others, with Autosheet MCP (shipped August 2026) letting Claude or ChatGPT drive the spreadsheet agent from an external client
- + Detailed usage reporting maps credit spend to tokens and requests, so I could price each bulk column before committing to a run
Cons
- - No permanent free tier: the trial credits run on a single model, so the multi-model selling point cannot be evaluated without subscribing ($25/month at time of writing)
- - Docs usage billing is not explained on the pricing page, which covers Sheets and Excel plans only
- - The mid-2026 rebrand to Autosheet means listing names, website and docs disagree for now — a mild tracking burden for buyers
- - Multi-account Google sign-ins trigger documented authorization errors; Workspace admins must allow add-on execution
- - The sidebar agent writes formulas but does not reason about cross-sheet business logic — tasks execute, outcomes are still yours to verify
Frequently Asked Questions
Which is better, Microsoft 365 Copilot or GPT for Sheets and Docs?▼
GPT for Sheets and Docs scores higher at 4.2/5 vs 4.0/5 for Microsoft 365 Copilot, making it the better-rated option in our comparison.
What is the difference between Microsoft 365 Copilot and GPT for Sheets and Docs?▼
Microsoft 365 Copilot: AI assistant integrated throughout Microsoft 365 — drafts in Word, analyzes in Excel, designs in PowerPoint, summarizes in Teams. GPT for Sheets and Docs: GPT for Sheets and Docs adds AI functions to Google Sheets and Docs for bulk writing, cleaning, classifying, enriching and translating data.
Is Microsoft 365 Copilot or GPT for Sheets and Docs more affordable?▼
Microsoft 365 Copilot starts at €30/mo, GPT for Sheets and Docs starts at €0/mo. Check the comparison table above for current pricing.
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