AI phone agents with integrated audio understanding, model routing, and voice optimization
Stage
MVP
Not given
Founded
Not given
Not given
Based in
PT
US
Pricing model
Free
Paid
Pricing
Free. No subscription required. Your bots run on the Claude or ChatGPT plans you already have, or on API keys you pay the providers directly. Built-in Mac voices cost nothing; other voices require your own ElevenLabs, Fish Audio or xAI key paid to those providers.
Cost-plus pricing: customers pay vendor list prices for models and voice plus hosting (15% of vendor costs, 0.5¢ to 2¢ per minute) plus company margin (17-25%). Lean calls cost from 2.0¢/min (1.18¢ vendors + 0.50¢ hosting + 0.35¢ margin). Receptionist calls cost 4.7¢/min (3.36¢ vendors + 0.50¢ hosti
Key features
Run multiple AI agents simultaneously on one canvas
Granular approval controls from Ask to Full access
Schedule jobs to run on recurring dates or calendar triggers
Voice interaction with bots
Support for Claude Code, Codex, Cursor, Grok and other agents
Usage tracking and cost estimation per bot
Secure keychain-based login management
Multi-model architecture running multiple transcription and language models per call
Zeus AI agent that builds, tests and tunes voice agents automatically
Simulated call testing before live deployment
Live call monitoring and observability
A/B testing and automated fix suggestions
Integration wizard for CRM, VoIP and business software
Client portals for managing multiple agents
Knowledge base integration for agent grounding
Outbound campaigns with CSV upload and scheduling
What makes it different
No subscription or account required; completely free to use
Work directly with your existing Claude and ChatGPT plans; no vendor lock-in
Private by default: data stays local, no analytics, keys never reach bots
Visual team dashboard showing real-time bot status at a glance
Cost-plus pricing with no margin markup pass-through when vendor prices drop
Fully agentic Zeus AI that handles entire lifecycle from creation to optimization
Multi-model architecture for superior audio understanding vs 3-step pipelines
Starts at 2¢/min, cheaper than competitors and call center labor
Orbit
ThunderPhone