Platform for building reliable AI phone agents (from 2c/min)
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.
Hi Product Hunt! Alex here, founder of ThunderPhone.
We spent the last year automating phone calls for enterprise customers and kept seeing the same failure: AI agents that mishear callers — names, addresses, spellings — until the caller gives up. So we built a different stack: a web of models where multiple transcription models and LLMs work each conversation turn together, instead of the usual three-step pipeline.
Last week we opened it to everyone: from 2¢/min with models included, an agent on a real phone number in minutes, AI-caller simulations to test it before it talks to a human, live call monitoring, and automatic issue detection on production calls. Our Storm tier (with the extra-intelligence option) scores 99.4% on Big Bench Audio — the eval set and transcripts are public on Hugging Face so you can check our work.
Try the live demo on our homepage without signing up. I'll be here all day — questions, feedback, and "it broke when I…" reports all welcome.
About ThunderPhone on Product Hunt
“Platform for building reliable AI phone agents (from 2c/min)”
ThunderPhone launched on Product Hunt on September 1st, 2026 and earned 102 upvotes and 14 comments, placing #14 on the daily leaderboard. 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.
On the analytics side, ThunderPhone competes within Customer Communication, SaaS and Artificial Intelligence — topics that collectively have 534.7k followers on Product Hunt. The dashboard above tracks how ThunderPhone performed against the three products that launched closest to it on the same day.
Who hunted ThunderPhone?
ThunderPhone was hunted by Alex Kolchinski. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of ThunderPhone including community comment highlights and product details, visit the product overview.
Alex Kolchinski