Tool review · Legal

Spellbook review

Spellbook is an AI tool in the legal category from Spellbook. Its strengths are fits how lawyers already edit contracts; speeds up first-pass review. The main caution: every suggestion needs lawyer judgment. In our profession matrix it scores highest for lawyers, paralegals and legal secretarys.

What it is

Spellbook is an AI contract drafting and review assistant that works inside Microsoft Word. It suggests clauses, flags risks and proposes redlines against your playbook.

Key features

  • Runs inside Microsoft Word
  • Clause suggestions and redlining
  • Risk flags for missing or unusual terms
  • Custom playbooks

Pros

  • Fits how lawyers already edit contracts
  • Speeds up first-pass review
  • Consistent with firm standards

Cons

  • Every suggestion needs lawyer judgment
  • Higher price than general assistants
  • Word-centric, less useful outside contracts

Pricing

Spellbook is a paid product with plans starting at $89/mo. There is no permanent free tier, so budget for a paid plan or a trial.

Who it fits

Professions where Spellbook scores highest in our matrix, with the workflow we recommend for each.

  • Lawyers: Lawyers lean on Spellbook to compare clause language across versions faster than a manual redline pass.
  • Paralegals: Paralegals lean on Spellbook to compare clause language across versions faster than a manual redline pass.
  • Legal Secretarys: Legal secretarys use Spellbook to get from a blank motion to a workable first draft, with every citation still checked by hand.
  • Compliance Officers: Compliance officers use Spellbook to triage discovery and document review at scale, then escalate the judgment calls to a human reviewer.
  • Patent Agents: Patent agents lean on Spellbook to compare clause language across versions faster than a manual redline pass.

How to get started

Use it for first drafts and research leads, and verify every citation and clause. Confidentiality and privilege rules still apply.

Alternatives to consider

  • Casetext CoCounsel (Casetext, Custom): CoCounsel, originally from Casetext and now part of Thomson Reuters, is an AI legal assistant for research, document review and drafting, connected to trusted legal content.
  • Clio AI (Clio, $39/mo): Clio AI adds generative assistance to Clio's legal practice management software, helping with drafting, summarizing matters and time entry for small and mid-sized firms.
  • Harvey AI (Harvey, Custom): Harvey is a legal AI platform used by law firms and legal departments for research, drafting and document review.

Frequently asked questions

What is Spellbook?

Spellbook is an AI contract drafting and review assistant that works inside Microsoft Word. It suggests clauses, flags risks and proposes redlines against your playbook.

How much does Spellbook cost?

Spellbook is a paid product with plans starting at $89/mo. There is no permanent free tier, so budget for a paid plan or a trial.

Is there a free version of Spellbook?

Spellbook does not currently list a permanent free tier. Look for a trial or a low-cost plan to test it on real work first.

Who is Spellbook best for?

In our profession matrix Spellbook ranks highest for lawyers, paralegals and legal secretarys. Lawyers lean on Spellbook to compare clause language across versions faster than a manual redline pass.

What are the alternatives to Spellbook?

Comparable legal options we review include Casetext CoCounsel, Clio AI and Harvey AI. Read each review to compare pricing, strengths and limits.

Independent review by the AI by Career editorial team. Last reviewed September 2026. No paid placement or affiliate influence; see our editorial policy.