
Like Claude Code for voice AI, from 2¢/min
Zeus is a fully agentic harness for voice AI: an AI agent that builds, tests and tunes your voice agents for you. Zeus configures agents on the ThunderPhone voice AI stack, which combines multiple models at once to achieve higher accuracy (99.4% on Big Bench Audio) and lower price (from 2¢/min) than competitors based on 3-step STT-LLM-TTS pipelines or single speech-to-speech models. Create an agent by talking to Zeus, or import one from Vapi, Retell, Bland or ElevenLabs.
Zeus by ThunderPhone is a voice AI development tool that automates the creation, testing, and tuning of voice agents, achieving 99.4% accuracy at a cost starting from 2¢ per minute. It integrates multiple AI models for enhanced performance and allows users to create agents through conversation or import from other platforms.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.