Robin AI
Drafting, review and negotiation assistance with legal expert oversight.
Full Robin AI record →Head to head
Robin AI vs Spellbook
Robin AI (Robin AI) and Spellbook (Spellbook) both sit in Legal. Spellbook is the cheaper entry point at Pricing is custom and based on the number of team members. A 7-day free trial is available.. Spellbook shipped more tracked changes in the last 30 days (3 vs 2). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Robin AI Robin AI | Spellbook Spellbook |
|---|---|---|
| Segment | Legal | Legal |
| Version | 2026 platform | ACM |
| Entry cost | from $99/mo | Pricing is custom and based on the number of team members. A 7-day free trial is available. |
| Pricing tiers | Lite $99 · Pro free · Enterprise free | Law Firms (Spellbook Suite) free |
| Model stack | Claude · Claude (Anthropic) · Claude 3.5 Sonnet | GPT5 · Opus |
| Context window | Not published | Not published |
| Public API | ||
| Routes models | ||
| Changes / 30d | 2 | 3 |
| Origin | Global | Global |
| Capabilities | Contract review, Playbook enforcement, Word add-in, Legal expert escalation, Reporting, Contract Review, AI Chat, Advanced Search | Clause suggestions, Redlining, Risk flagging, Benchmarks, Playbooks, Contract Review, Contract Drafting, Contract Comparison |
Spellbook
Suggests clauses, flags risk and redlines contracts inside Microsoft Word.
Full Spellbook record →