Duckbill vs Vellum
Which Agents AI tool is better in 2026?
Duckbill
An AI-plus-human executive assistant that actually completes your personal to-do list
Vellum
An AI Assistant that adapts to how you work, acts before you ask, and is entirely yours to customize.
Side-by-side
Duckbill is the more established option (raised $33M); pricing is comparable on both sides.
| Metric | Duckbill | Vellum |
|---|---|---|
| Taglinei | An AI-plus-human executive assistant that actually completes your personal to-do list | An AI Assistant that adapts to how you work, acts before you ask, and is entirely yours to customize. |
| Foundedi | 2022🏆 | — |
| HQi | Boston, United States | US |
| Employeesi | — | 1-10🏆 |
| Neuron scorei | 71🏆 | 22 |
| Total fundingi | $33M🏆 | Undisclosed |
| Latest roundi | Series A · Sep 2023 | — |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | — |
| Free plani | ✗ | ✓ Free |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pricing not disclosed | — |
| Pricing summaryi | Free trial | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Duckbill and Vellum.
| Capability | Duckbill | Vellum |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 1 (CLI) |
| Free plan | ✗ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Duckbill
- Has raised more capital ($33M vs Undisclosed)
- Higher Neuron score (71 vs 22)
- Newer company (2022)
🔵 Strengths of Vellum
- Offers a free plan
Which should you choose?
Choose Vellum if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Agents tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Duckbill if you want the most established option — it has raised $33M, 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
Duckbill vs Vellum — which is better?
It depends on your priority. Duckbill has raised more capital and is the more established option; Vellum has broader feature depth. See the side-by-side table above.
Is Duckbill cheaper than Vellum?
No — Vellum's cheapest paid plan is Free, while Duckbill's is Free trial.
Do Duckbill and Vellum offer free plans?
Duckbill: Free trial only. Vellum: Yes, has a free plan.
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