Pick Ultravox if
builders who will burn 30 free minutes, then $0.05 / min, and may clone the MIT model.
Read the Ultravox pageUltravox vs Vapi
Our take
Pick Ultravox if you're a builder who will burn 30 free minutes, then $0.05 / min, and may clone the MIT model. Pick Vapi if you're a builder who want a voice agent with a Dashboard plus an API, and will pay hosting + provider pass-through. Skip Ultravox if you're on a team that want one all-in talk-time rate with LLM/STT/TTS bundled (Bland). Skip Vapi if you're on a team that want one all-in per-minute rate with
Best for
Ultravox A realtime voice agent with a public per-minute card
Vapi A phone or web voice agent you can publish
Free plan
Ultravox $0 · / month. 30 free minutes; then $0.05 / min. No surge. Unlimited playground. 5 concurrent. SIP 0.5¢ / min. Threads tokens $2 / 1M input, $15 / 1M output (uncached)
Vapi No free plan
Lowest paid
Ultravox Pro $100
Vapi No Success Package $5
Next step up
Ultravox
Vapi Pro $999/mo
Coding agent
Ultravox Agents desk
Vapi
Runs where
Ultravox Hosted
Vapi
Watch out
Ultravox $0.05 / min is not the SIP / token bill
Vapi Hosting is $0.05/min plus providers
Last checked
Ultravox 2026-10-28 · ultravox.ai/pricing
Vapi 2026-10-22 · vapi.ai/pricing
Which one, then?
Pick Vapi if
builders who want a voice agent with a Dashboard plus an API, and will pay hosting + provider pass-through.
Read the Vapi page