Luminance is an enterprise document review tool built for BigLaw M&A due diligence — not a complete practice platform for Ontario solo and small firms. Atticus gives Ontario lawyers Canadian legal AI, trust accounting, billing, and LSO compliance in one platform.
Luminance solves a specific enterprise problem — high-volume AI document review. Ontario solo and small firms need a complete daily practice platform with Canadian AI, trust accounting, and LSO compliance built in.
Luminance is built for high-volume AI document review and due diligence in M&A and finance transactions at large law firms and corporate legal teams. It has no practice management, billing, trust accounting, matter management, or client intake functionality. Ontario solo and small firms need a complete practice platform — Luminance solves one narrow problem at enterprise cost.
Luminance has no trust accounting functionality. Ontario lawyers have mandatory LSO trust accounting obligations. Atticus includes fully LSO-compliant trust ledgers, mixed trust accounts, and annual reporting as core features in the standard $149 CAD monthly price.
Luminance's AI is trained to identify anomalies in contracts relative to market norms — primarily based on large-firm Anglo-American transaction patterns. Atticus AI is purpose-built for Ontario legal practice: Ontario statute compliance, LSO professional conduct rules, limitation period flagging, and drafting assistance in Canadian legal context.
Most Ontario solo and small firm lawyers do not conduct high-volume M&A due diligence. They manage files, bill clients, handle trust accounts, and track deadlines daily. Atticus is built for this daily practice reality — Luminance is optimized for a narrow transaction use case that most Ontario lawyers encounter rarely if ever.
Luminance is a UK-based company with enterprise data residency configuration required for Canadian clients. Atticus stores all client data on Canadian servers by default — meeting PIPEDA requirements and Law Society data guidance without additional configuration.
Luminance carries enterprise pricing in USD/GBP designed for large law firm and corporate legal department budgets. Ontario solo and small firms cannot practically deploy Luminance at any reasonable per-lawyer cost. Atticus is $149 CAD per lawyer per month — all features included.
See what Ontario lawyers get with Atticus vs Luminance — a complete Canadian practice platform versus an enterprise document review tool.
| Feature | Atticus | Luminance AI |
|---|---|---|
| Practice management | ✓Full integrated practice management | AI document review and contract analysis tool only; no practice management |
| Ontario trust accounting | ✓Built-in, LSO compliant | No trust accounting functionality |
| HST billing | ✓Native HST with CRA-compliant invoices | No billing or invoicing module |
| Time tracking | ✓Integrated time and billing | No time tracking functionality |
| AI legal work | ✓Canadian legal AI: document drafting, summarization, limitation period flagging, LSO compliance | AI document review, due diligence, contract analysis, and anomaly detection — enterprise M&A and finance focus |
| Matter management | ✓Full matter lifecycle from intake to close | Document-centric; no matter or case management |
| Limitation period alerts | ✓Ontario Limitations Act built in | Not included as a practice management feature |
| Conflict checking | ✓Automated conflict search | Not included |
| Client intake | ✓Automated client intake portal | Not included |
| LSO compliance | ✓Built for Ontario LSO requirements | No Ontario-specific LSO compliance features |
| Target market | ✓Ontario solo and small law firms | Large law firms and in-house legal teams conducting high-volume document review; enterprise M&A due diligence |
| Pricing (CAD) | ✓$149/lawyer/month (all-in, including AI) | Enterprise pricing in USD/GBP; not designed for solo or small firm budgets |
| Data residency | ✓Canadian servers by default | UK-based company; data residency configuration required for Canadian clients |
| Deployment | ✓Self-serve; ready in hours | Enterprise implementation; training required; dedicated implementation team |
Ontario lawyers need trust accounting, billing, conflict checking, and Canadian legal AI — all in one platform. Try Atticus free for 14 days.
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