AI contract review comparison

goHeather vs Spellbook

Spellbook is a complete AI suite for commercial law, built around Microsoft Word. goHeather is lawyer-trained AI contract review and drafting built for everyone else — start reviewing real contracts in minutes, in Word or your browser, from $99/month, no demo required.

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The honest comparison

Spellbook is a complete suite for commercial law.
goHeather is built for everyone else.

Both are excellent — at different jobs. Spellbook gives commercial teams a full drafting-to-negotiation suite with real-time market data, all inside Word. goHeather gives growing companies and small firms lawyer-trained review and drafting they can start using this afternoon, in Word or the browser.

Where Spellbook fits

Commercial teams that negotiate high volumes of agreements and want real-time market benchmarking. Spellbook's Compare to Market feature and multi-document Associate agent are genuinely strong for data-driven negotiation — all inside Microsoft Word.

Where goHeather wins

Teams that need fast, accurate, lawyer-trained review and drafting without per-seat enterprise pricing. Upload your paper and get clause-by-clause redlines in minutes — in Word or your browser — starting at $99/month.

Why it matters

An independent NYU study named goHeather a benchmark for state-of-the-art AI contract review. You get validated accuracy at transparent small-business pricing, self-serve with no demo required.

Side by side

goHeather vs Spellbook, at a glance

	goHeather	Spellbook
Best for	SMBs, in-house teams & small firms without big-law budgets	Commercial teams wanting real-time negotiation benchmarking
Primary focus	Lawyer-trained AI contract review & drafting	Complete AI suite for drafting, review & negotiation
Starting price	From $99/month, transparent	Custom per-seat quote (3rd-party reports ~$589/user/mo)
Transparent public pricing		—
Works in the browser, not just Word		—
Microsoft Word add-in
Self-serve free trial
Real-time market-data benchmarking	—
Named a benchmark in an independent NYU study		—

This comparison is based on publicly available information and goHeather's hands-on testing through Spellbook's public demo or free trial, current as of June 2026. Pricing figures are third-party reported. Spellbook is a trademark of its respective owner; pricing and features may change — check each vendor's site for the latest.

$99/mo

Transparent starting price — no custom quote

20,000+

Businesses trust goHeather

NYU

Named a benchmark in an independent study

Minutes

To your first reviewed contract

goHeather vs Spellbook: common questions

Is goHeather better than Spellbook?

goHeather and Spellbook target different needs. Spellbook is a complete AI suite with real-time market benchmarking for commercial negotiation. goHeather delivers lawyer-trained review and drafting validated as a benchmark in an independent NYU study, at transparent $99/month pricing in both Word and the browser — the better fit for SMBs and small firms.

What is the difference between goHeather and Spellbook?

Spellbook is a Word-based AI suite built around drafting, review, and real-time market benchmarking for commercial teams. goHeather is lawyer-trained AI contract review and drafting for SMBs and small firms, available in both Microsoft Word and the browser, with transparent pricing from $99/month and no required demo.

Is goHeather cheaper than Spellbook?

goHeather starts at $99/month with transparent, self-serve pricing. Spellbook uses custom per-seat quotes that third-party reviews report at roughly $589 per user per month on annual plans, so goHeather is typically far more affordable for small teams.

Can goHeather replace Spellbook?

For lawyer-trained contract review and drafting, goHeather replaces the core of what most teams use Spellbook for, in Word or the browser. Teams that specifically need Spellbook's real-time market-data benchmarking or its multi-document Associate agent may still prefer Spellbook for those workflows.

Who should use Spellbook instead of goHeather?

Commercial legal teams that negotiate high volumes of agreements and want real-time market-data benchmarking, or that need a multi-document AI agent like Spellbook Associate, may prefer Spellbook. goHeather is the stronger fit for SMBs and small firms that want accurate, affordable review and drafting.