Optimizing AI Prompts for VAPI – Best Practices?

I am optimizing AI-generated voice responses in VAPI, which calls OpenAI (gpt 4o-min). I have experimented with structured JSON prompts and different ways to pass variables {var} vs. {{var}} vs [var].

For those using VAPI , what’s your approach to:

Handling dynamic user inputs effectively?
Controlling tone and verbosity in real-time responses?
Structuring prompts for natural-sounding AI interactions?

I have tested system prompts, temperature tuning, and different formatting styles. Keen to hear what works best for you!

if you want to share your prompt to compare and learn, it would be great.

0 comments

Brendan's AI Community

skool.com/brendan

Learn To Make Money With AI!

- 50+ Free AI Agent Templates

- 60+ Free AI Course Videos

(n8n, Make, Vapi, Voiceflow)

- AI Software Discounts 💰

Leaderboard (30-day)

+77

+69

+60

+58

+57