AI phone agents with integrated audio understanding, model routing, and voice optimization
Like having a real-life personal assistant.
Stage
Not given
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Founded
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Based in
US
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Pricing model
Paid
Paid
Pricing
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
Personal $30/month with $20 usage and 100 GB storage; Plus $50/month with $40 usage and 250 GB storage; Power $90/month with $80 usage and 500 GB storage; Max $170/month with $160 usage and 1 TB storage; Use your own AI key $10/month with 100 GB storage. Extra storage available at $2/month per 100 G
Key features
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
Real browser with ability to sign in, fill forms, and download files
Persistent memory notebook that learns your preferences
Text message interface for mobile communication
Live meeting notes from microphone, meeting tabs, or Bee wearable
Purchase approval system with Link payments up to $500
Multi-channel organization for different life areas
Sentinel security checkpoint for API keys and saved passwords
What makes it different
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
Real browser automation in 1,500+ apps instead of API-only limitations
Continues working while your device is closed or offline
ThunderPhone
1Helm