ANALYSIS VERDICT
Vapi leads on autonomy (73 vs 72), while Retell AI starts at $0/mo. Select Retell AI for state-of-the-art conversational turn-taking; consider Vapi if you prioritize sub-500ms voice response latency.
| Metric / Feature | Retell AI Visit retellai.com ↗ | Vapi Visit vapi.ai ↗ |
|---|---|---|
| Autonomy Score (AES) | 72/100 | 73/100 Core 83 · -10 setup |
| Value-to-Cost Ratio | 5.40 | 7.01 |
| Starting Price | $0/mo | $0/mo |
| Pricing Model | freemium | freemium |
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