Adept AI vs Vellum
Which Agents AI tool is better in 2026?
Adept AI
AI that takes actions in any software
Vellum
An AI Assistant that adapts to how you work, acts before you ask, and is entirely yours to customize.
Side-by-side
| Adept AI | Vellum | |
|---|---|---|
| Tagline | AI that takes actions in any software | An AI Assistant that adapts to how you work, acts before you ask, and is entirely yours to customize. |
| Founded | 2022 | — |
| HQ | San Francisco, US | — |
| Employees | 100-200 | — |
| Total funding | $350M | Undisclosed |
| Latest round | M&A · Jun 2024 | — |
| Valuation | $1B | — |
| Cheapest paid plan | — | Pricing not disclosed |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Top tier price | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summary | 1 published plans | Enterprise · Contact sales |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for Adept AI and Vellum.
| Capability | Adept AI | Vellum |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Adept AI
- Has raised more capital ($350M vs Undisclosed)
- Higher Neuron score (53 vs 11)
- Newer company (2022)
- Verified profile
🔵 Strengths of Vellum
- Offers a free plan
- Offers a free trial
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 Adept AI if you want the most established option — it has raised $350M, 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
Adept AI vs Vellum — which is better?
It depends on your priority. Adept AI has raised more capital and is the more established option; Vellum has broader feature depth. See the side-by-side table above.
Is Adept AI cheaper than Vellum?
No — Vellum's cheapest paid plan is Enterprise · Contact sales, while Adept AI's is Enterprise · Contact sales.
Do Adept AI and Vellum offer free plans?
Adept AI: Paid only. Vellum: Yes, has a free plan.
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