Engineering
How we build the machines.
Technical write-ups from building WildRun's voice agents and automation stack — Vapi architecture, Cloudflare Workers, latency work, eval frameworks, prompt security, and search plumbing. Written for engineers; the main blog is for the business owners the machines answer for.
Best LLM for Voice Agents in 2026: A Developer's Comparison
Compare GPT-4.1, Claude Sonnet 4.6, Gemini 2.5 Flash, and Groq for voice AI. Real TTFT data, function-calling grades, and TypeScript you can deploy today.
2026-06-26 · 12 minPrompt Engineering for Voice AI Agents: Complete Guide
Practical prompt engineering for voice AI agents: control response latency, prevent hallucinations, handle interruptions, and wire tool calls in Vapi.
2026-06-19 · 12 min