Copilot in Word vs Spellbook

Copilot in Word and Spellbook sit in the same category and share 1 task. The verdict below is calculated for each role from the tasks, the role fit and the price.

Short answer

Copilot in Word wins for 20 of 20 roles in our data. Copilot in Word starts at $20/mo; Spellbook publishes no fixed price.

Verdict by role

Role	Better choice	Why
Accountant	Copilot in Word	covers 10 of this role's tasks against 0; built for this role
Lawyer	Copilot in Word	covers 10 of this role's tasks against 3; part of the role's core toolkit
HR manager	Copilot in Word	covers 5 of this role's tasks against 0; built for this role
Finance manager	Copilot in Word	covers 8 of this role's tasks against 1; built for this role
Manager	Copilot in Word	covers 9 of this role's tasks against 2
Marketer	Copilot in Word	covers 9 of this role's tasks against 2
Sales manager	Copilot in Word	covers 9 of this role's tasks against 2
Data analyst	Copilot in Word	covers 8 of this role's tasks against 1; built for this role
Teacher	Copilot in Word	covers 9 of this role's tasks against 2
Executive assistant	Copilot in Word	covers 10 of this role's tasks against 2
Logistics manager	Copilot in Word	covers 9 of this role's tasks against 2
Procurement manager	Copilot in Word	covers 8 of this role's tasks against 1; built for this role
Secretary	Copilot in Word	covers 9 of this role's tasks against 2
Recruiter	Copilot in Word	covers 5 of this role's tasks against 0; built for this role
HR administrator	Copilot in Word	covers 5 of this role's tasks against 0; part of the role's core toolkit; built for this role
Tax consultant	Copilot in Word	covers 11 of this role's tasks against 0; part of the role's core toolkit; built for this role
Auditor	Copilot in Word	covers 10 of this role's tasks against 0; built for this role
Economist	Copilot in Word	covers 8 of this role's tasks against 1; built for this role
Project manager	Copilot in Word	covers 9 of this role's tasks against 2
Social media manager	Copilot in Word	covers 9 of this role's tasks against 2

Side by side

	Copilot in Word	Spellbook
Vendor	Microsoft	Rally Legal
Category	Documents and writing	Documents and writing
Free plan	No	Yes: A trial after sign-up
Cheapest paid plan	Included in Copilot Pro, $20/mo	price on request
Top plan	Included in Microsoft 365 Copilot, $30/mo	price on request
Tasks covered	16	3

Copilot in Word: Drafts, rewrites and summaries of documents in Word, drawing on other company files.

Spellbook: Lawyer's assistant in Word: tracked-change edits, missing clauses and risks.

Tasks both handle

Redline a contract with tracked changes

Only Copilot in Word covers

Only Spellbook covers

Pitfalls to watch at work

Copilot in Word

Compare two versions of a contract with Word's built-in Compare and ask Copilot to explain the changes found: on its own it misses some edits
Rewriting in a different tone also changes the content: after Rewrite, check amounts, dates and party names against the original
In the business version Copilot may pull a passage from someone else's document you have access to: check the sources in the answer

Spellbook

Spellbook takes market standards from common law practice: edit clauses on jurisdiction, penalties and currency for your governing law yourself
Review every tracked change before accepting: a bulk "accept all" brings the other side's positions into the contract
Contracts with real parties are processed in the cloud: check the vendor's confidentiality terms before the first client contract

FAQ

Is Copilot in Word or Spellbook better for work?

In our data Copilot in Word is the better choice for 20 of 20 roles. The table above shows the reason for each role.

Which is cheaper, Copilot in Word or Spellbook?

Copilot in Word starts at $20/mo; Spellbook publishes no fixed price.

Do Copilot in Word and Spellbook have free plans?

Copilot in Word: No. Spellbook: Yes. A trial after sign-up.

Compare Copilot in Word with

Compare Spellbook with

Alternatives to Copilot in Word · Alternatives to Spellbook · Copilot in Word pricing · Spellbook pricing