Build AI phone agents
Provides a self-serve platform for building AI phone agents.
Automation / product dossier
ThunderPhone
Build, simulate, monitor, and improve AI phone agents in 47 languages.
Product brief
What ThunderPhone does.
ThunderPhone is a self-serve platform for building AI phone agents. From 2¢/min with models included. Our Storm tier, with its extra-intelligence option, scores 99.4% on Big Bench Audio — eval set public on Hugging Face. Build agents, test them with AI-caller simulations, monitor and steer live calls, and get auto-detected issues with proposed fixes. 47 languages.
Why we selected it
A practical voice-agent platform with AI-caller simulations, live-call steering, issue detection with proposed fixes, and support for 47 languages.
- Best for
- Teams deploying customer voice agents
- Category
- Automation
- Daily picks
- 1
- First selected
- 2026-09-01
Product preview saved with our daily selection
Capability scan
What it can help with.
Only capabilities supported by the product information we collected are listed here.
Simulate callers for testing
Lets teams test agents with AI-caller simulations.
Monitor and steer live calls
Supports live-call monitoring and steering.
Detect issues and propose fixes
Automatically detects issues and provides proposed fixes.
Support 47 languages
Lists support for 47 languages.
Best-fit use cases
Build a phone agent for customer communication without a stated custom development requirement.
Test call flows with AI-caller simulations before live use.
Monitor active customer calls and steer them during the conversation.
Review automatically detected call issues and proposed fixes.
FAQ
Before you open it.
What is ThunderPhone?
ThunderPhone is a self-serve platform for building AI phone agents.
How can teams test a phone agent?
ThunderPhone provides AI-caller simulations for testing agents.
Can users oversee live calls?
Yes. The platform lists live-call monitoring and steering.
What happens when ThunderPhone identifies an issue?
Its description says it auto-detects issues and provides proposed fixes.
How many languages does ThunderPhone list?
ThunderPhone lists 47 languages.