Retell AI Cost Tuning
Overview
Implementation patterns for Retell AI cost tuning — voice agent and telephony platform.
Prerequisites
- Completed
retellai-install-auth setup
Instructions
Step 1: SDK Pattern
import Retell from 'retell-sdk';
const retell = new Retell({ apiKey: process.env.RETELL_API_KEY! });
const agents = await retell.agent.list();
console.log(`Agents: ${agents.length}`);
Output
- Retell AI integration for cost tuning
Error Handling
| Error |
Cause |
Solution |
| 401 Unauthorized |
Invalid API key |
Check RETELL_API_KEY |
| 429 Rate Limited |
Too many requests |
Implement backoff |
| 400 Bad Request |
Invalid parameters |
Check API documentation |
Examples
Reduce cost without degrading a required human handoff
Measure average call duration, transfer rate, and failed-call retries for a
representative non-production sample before changing prompt length or model
settings. Trial the lower-cost configuration on a small canary, retaining the
existing agent version as rollback. Keep the human-handoff trigger unchanged
unless the service owner approves a new threshold; a shorter call is not a
saving if it silently increases unresolved customer requests.
Resources
Next Steps
See related Retell AI skills for more workflows.