Casetext vs Supio
Which Legal AI tool is better in 2026?
Casetext
AI legal assistant CoCounsel that drafts, reviews, and researches law using GPT-4 reasoning.
Supio
Agentic legal AI for personal injury and mass tort plaintiff firms
Side-by-side
Supio is the more established option (raised $91M), but Casetext is cheaper to start.
| Metric | Casetext | Supio |
|---|---|---|
| Taglinei | AI legal assistant CoCounsel that drafts, reviews, and researches law using GPT-4 reasoning. | Agentic legal AI for personal injury and mass tort plaintiff firms |
| Foundedi | 2013🏆 | 2023 |
| HQi | San Francisco, US | Seattle, US |
| Employeesi | — | 51-200🏆 |
| Neuron scorei | 46 | 62🏆 |
| Total fundingi | $64M | $91M🏆 |
| Latest roundi | Acquisition · Jun 2023 | Series B · Apr 2025 |
| Valuationi | $650M🏆 | — |
| Cheapest paid plani | From $250/mo🏆 | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free trial · From $250/mo | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Casetext and Supio.
| Capability | Casetext | Supio |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✓ | ✗ |
🟢 Strengths of Casetext
- Offers a free trial
- Lower starting price ($250/mo)
- More mature (2013)
🔵 Strengths of Supio
- Has raised more capital ($91M vs $64M)
- Higher Neuron score (62 vs 46)
- Newer company (2023)
Which should you choose?
Choose Casetext if price matters most — it starts at Free trial · From $250/mo, 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.
💸 Deals
Casetext CoCounsel — free demo + trial
Book a free CoCounsel demo and pilot — legal research, document review, and deposition prep powered by GPT-4.
Terms: Demo gated; pilot terms vary.
Frequently asked questions
Casetext vs Supio — which is better?
It depends on your priority. Casetext is the leaner option; Supio has broader feature depth. See the side-by-side table above.
Is Casetext cheaper than Supio?
Yes — Casetext's cheapest paid plan is Free trial · From $250/mo, while Supio's is Enterprise · Contact sales.
Do Casetext and Supio offer free plans?
Casetext: Free trial only. Supio: Paid only.
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