Luminance vs Supio
Which Legal AI tool is better in 2026?
Luminance
Legal-Grade AI agents that automate contract drafting, negotiation and review.
Supio
Agentic legal AI for personal injury and mass tort plaintiff firms
Side-by-side
Luminance is the more established option (raised $165M); pricing is comparable on both sides.
| Metric | Luminance | Supio |
|---|---|---|
| Taglinei | Legal-Grade AI agents that automate contract drafting, negotiation and review. | Agentic legal AI for personal injury and mass tort plaintiff firms |
| Foundedi | 2015🏆 | 2023 |
| HQi | Cambridge, GB | Seattle, US |
| Employeesi | 201-500 | 51-200🏆 |
| Neuron scorei | 73 | 74🏆 |
| Total fundingi | $165M🏆 | $91M |
| Latest roundi | Series C · Feb 2025 | Series A · Aug 2024 |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Enterprise · Contact sales | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Luminance and Supio.
| Capability | Luminance | Supio |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Luminance
- Has raised more capital ($165M vs $91M)
- More mature (2015)
🔵 Strengths of Supio
- Higher Neuron score (74 vs 73)
- Newer company (2023)
Which should you choose?
Choose Supio if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Legal tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Luminance if you want the most established option — it has raised $165M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Luminance vs Supio — which is better?
It depends on your priority. Luminance has raised more capital and is the more established option; Supio has broader feature depth. See the side-by-side table above.
Is Luminance cheaper than Supio?
No — Supio's cheapest paid plan is Enterprise · Contact sales, while Luminance's is Enterprise · Contact sales.
Do Luminance and Supio offer free plans?
Luminance: Paid only. Supio: Paid only.
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