# Retell AI alternatives

The highest-scoring alternative to Retell AI in Voice AI Agents is **Smith.ai** (86/100), against Retell AI's 78/100. Ranked on independent signals, not user reviews. No vendor pays for placement.

| # | Alternative | Score | Confidence | Compare |
|--:|---|--:|---|---|
| 1 | [Smith.ai](https://www.vioscale.ai/software/smith-ai) | 86 | 37% (low) | [Retell AI vs Smith.ai](https://www.vioscale.ai/compare/retell-ai-vs-smith-ai) |
| 2 | [Vapi](https://www.vioscale.ai/software/vapi) | 76 | 75% (high) | [Retell AI vs Vapi](https://www.vioscale.ai/compare/retell-ai-vs-vapi) |
| 3 | [Dasha.ai](https://www.vioscale.ai/software/dasha-ai) | 72 | 55% (medium) | [Retell AI vs Dasha.ai](https://www.vioscale.ai/compare/dasha-ai-vs-retell-ai) |
| 4 | [Synthflow AI](https://www.vioscale.ai/software/synthflow-ai) | 68 | 76% (high) | [Retell AI vs Synthflow AI](https://www.vioscale.ai/compare/retell-ai-vs-synthflow-ai) |
| 5 | [Thoughtly](https://www.vioscale.ai/software/thoughtly) | 64 | 75% (high) | [Retell AI vs Thoughtly](https://www.vioscale.ai/compare/retell-ai-vs-thoughtly) |
| 6 | [Sierra](https://www.vioscale.ai/software/sierra) | 62 | 41% (low) | [Retell AI vs Sierra](https://www.vioscale.ai/compare/retell-ai-vs-sierra) |
| 7 | [Bland AI](https://www.vioscale.ai/software/bland-ai) | 59 | 56% (medium) | [Retell AI vs Bland AI](https://www.vioscale.ai/compare/bland-ai-vs-retell-ai) |
| 8 | [Goodcall](https://www.vioscale.ai/software/goodcall) | 52 | 53% (medium) | [Retell AI vs Goodcall](https://www.vioscale.ai/compare/goodcall-vs-retell-ai) |
| 9 | [PolyAI](https://www.vioscale.ai/software/polyai) | 47 | 60% (medium) | [Retell AI vs PolyAI](https://www.vioscale.ai/compare/polyai-vs-retell-ai) |

Retell AI itself ranks #2 of 10 in Voice AI Agents.

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*Source: Vioscale (https://www.vioscale.ai/alternatives/retell-ai). Generated 2026-09-01T14:36:48.193Z.*