Sandstone vs Supio
Which Legal AI tool is better in 2026?
Sandstone
Supio
Agentic legal AI for personal injury and mass tort plaintiff firms
Side-by-side
Supio is the more established option (raised $91M); pricing is comparable on both sides.
| Metric | Sandstone | Supio |
|---|---|---|
| Taglinei | — | Agentic legal AI for personal injury and mass tort plaintiff firms |
| Foundedi | 2024 | 2023🏆 |
| HQi | — | Seattle, US |
| Employeesi | 11-50 | 51-200🏆 |
| Neuron scorei | 66 | 74🏆 |
| Total fundingi | $10M | $91M🏆 |
| Latest roundi | Seed | 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 | Free | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Sandstone and Supio.
| Capability | Sandstone | Supio |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Sandstone
- Offers a free plan
- Offers a free trial
- Newer company (2024)
🔵 Strengths of Supio
- Has raised more capital ($91M vs $10M)
- Higher Neuron score (74 vs 66)
- More mature (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 Supio if you want the most established option — it has raised $91M, 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
Sandstone vs Supio — which is better?
It depends on your priority. Sandstone is the leaner option; Supio has broader feature depth. See the side-by-side table above.
Is Sandstone cheaper than Supio?
No — Supio's cheapest paid plan is Enterprise · Contact sales, while Sandstone's is Free.
Do Sandstone and Supio offer free plans?
Sandstone: Yes, has a free plan. Supio: Paid only.
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