Decagon vs Retell AI
Which Agents AI tool is better in 2026?
Decagon
AI agents that actually solve customer problems
Retell AI
Hire your AI call center for sales, support, and appointment scheduling
Side-by-side
Decagon is the more established option (raised $546M); pricing is comparable on both sides.
| Metric | Decagon | Retell AI |
|---|---|---|
| Taglinei | AI agents that actually solve customer problems | Hire your AI call center for sales, support, and appointment scheduling |
| Foundedi | 2023 | 2023 |
| HQi | San Francisco, US | US |
| Employeesi | 50-200 | 1-10🏆 |
| Neuron scorei | 64🏆 | 34 |
| Total fundingi | $546M🏆 | Undisclosed |
| Latest roundi | Series D · Jan 2026 | Seed |
| Valuationi | $4.5B🏆 | — |
| Cheapest paid plani | — | — |
| Free plani | ✗ | ✓ Free Trial |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise · Contact sales | Enterprise · Contact sales |
| Pricing summaryi | 1 published plans | 2 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Decagon and Retell AI.
| Capability | Decagon | Retell AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 2 (JavaScript, Python) |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Decagon
- Has raised more capital ($546M vs Undisclosed)
- Higher Neuron score (64 vs 34)
- Verified profile
🔵 Strengths of Retell AI
- Offers a free plan
- Offers a free trial
Which should you choose?
Choose Retell AI if price matters most — it starts at Free, 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 Decagon if you want the most established option — it has raised $546M, 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
Decagon vs Retell AI — which is better?
It depends on your priority. Decagon has raised more capital and is the more established option; Retell AI has broader feature depth. See the side-by-side table above.
Is Decagon cheaper than Retell AI?
No — Retell AI's cheapest paid plan is Free, while Decagon's is Enterprise · Contact sales.
Do Decagon and Retell AI offer free plans?
Decagon: Paid only. Retell AI: Yes, has a free plan.
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