Luminance vs Spellbook
A side-by-side comparison of Luminance and Spellbook, two Legal tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
The honest brief
Luminance
Autopilot redlining against your playbook across 14+ languages — built for high-volume inbound review, not drafting.
- Fast autopilot redlining
- Cross-border, multilingual review
- Pattern-detection risk heatmaps
- Purpose-built legal models
- Built for transactional, not litigation
- Weaker at net-new drafting
- Enterprise sales and deployment
- Opaque per-seat pricing
Spellbook
Runs entirely as a Microsoft Word add-in, so drafting and redlining happen in the document lawyers already work in.
- Native Microsoft Word add-in
- Clause benchmarking + playbook review
- Early generative-AI legal tool (2022)
- Multi-model (GPT, Claude)
- Paid-only, no free tier
- Tied to the Word workflow
- Less suited to litigation/research