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Scheduled launch — Aug 29, 2026
ThunderPhone is listed on AI Kaptan and will enter the daily launch competition on that day. Community upvotes open on launch day.
ThunderPhone
ThunderPhone is a self-serve platform for building high-accuracy AI phone agents for inbound and outbound calls, starting at 2¢/min with 47 languages supported and top audio benchmark scores.
About ThunderPhone
What the tool does and who it's for
ThunderPhone is a self-serve platform designed for building AI phone agents starting at 2¢/min with models included. Powered by its Storm tier (with the extra-intelligence option), it scores 99.4% on Big Bench Audio, topping the Artificial Analysis leaderboard to date with a public evaluation set on Hugging Face. Built around speech accuracy across noisy lines, accents, and tricky spellings, it supports 47 languages with mid-conversation language switching. Teams can build, test, monitor, and steer inbound and outbound call agents, detect voicemails and screeners, capture DTMF, and utilize live supervision alongside automated issue detection and proposed fixes. Access options range from no-code interfaces to raw APIs and MCP, as well as enterprise deployments.
Key capabilities
Pricing
Paid — plans below
Self-serve
Starting at 2¢/min
- Models included
- Self-serve platform
- Inbound & outbound call handling
- 47 languages supported
Custom Enterprise
Contact sales
- Custom enterprise deployments
- HIPAA and GDPR compliance
- API & MCP integration
- Dedicated support
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