We believe in pricing so competitive that you won't find a lower price elsewhere, not even by building your own stack.
Spark at 2¢/min, vs a typical 10¢/min itemized stack.
Flat per-minute pricing. Move a workload up or down a tier whenever you want.
Our lowest-cost engine.
Faster responses, stronger instruction following.
Our strongest audio understanding and instruction following.
Extra intelligence +3¢/minFast — but it mishears and drifts off-script.
Long hold queues make per-minute bills explode on other platforms. ThunderPhone detects hold automatically and drops the price: hold time bills at a flat 2¢/min on every tier, no matter how long the queue runs.
All tiers show base per-minute rates. Premium voices, long prompts, and ThunderPhone numbers are optional add-ons, billed separately.
Every tier ships with the full stack.
Pay only for what your use case needs.
Competitors charge platform fees on top of model costs and start at 7¢/min — and go much higher than that. ThunderPhone keeps the full stack affordable and charges no platform fee.
We think voice AI should work like AWS or Costco: low margins at high volumes, making customers successful at fair, low prices. We don't add a platform fee on every minute.
We'll match or beat the performance of any competing stack on your use case, and we'll beat the pricing as well. We price so low that you won't even save money if you build your own stack in-house. (Reach out if you think we're wrong!)
For high-volume use cases including but not limited to outbound with long hold times, voicemail, and screeners, we can reach 1¢/min or less with an enterprise agreement. Reach out to learn more.
See enterprise pricingPick a tier, write a prompt, connect your number.