Spellbook
Suggests clauses, flags risk and redlines contracts inside Microsoft Word.
Full Spellbook record →Head to head
Spellbook vs Robin AI
Spellbook (Spellbook) and Robin AI (Robin AI) both sit in Legal. Spellbook is the cheaper entry point at 7-day free trial available, contact for custom user-based pricing.. Spellbook shipped more tracked changes in the last 30 days (4 vs 2). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Spellbook Spellbook | Robin AI Robin AI |
|---|---|---|
| Segment | Legal | Legal |
| Version | ACM | 2026 platform |
| Entry cost | 7-day free trial available, contact for custom user-based pricing. | from $99/mo |
| Pricing tiers | 7-Day Free Trial free | Lite $99 · Pro free · Enterprise free |
| Model stack | GPT5 · Opus | Claude · Claude (Anthropic) · Claude 3.5 Sonnet |
| Context window | Not published | Not published |
| Public API | ||
| Routes models | ||
| Changes / 30d | 4 | 2 |
| Origin | Global | Global |
| Capabilities | Clause suggestions, Redlining, Risk flagging, Benchmarks, Playbooks, Contract Review, Contract Drafting, Contract Comparison | Contract review, Playbook enforcement, Word add-in, Legal expert escalation, Reporting, Contract Review, AI Chat, Advanced Search |
Robin AI
Drafting, review and negotiation assistance with legal expert oversight.
Full Robin AI record →