Ultravox
Ultravox · Speech-native model + platform · Official site
5 Yes2 Partial0 No4 Unknown
| Feature | Status | What the vendor says | Source | Checked |
|---|---|---|---|---|
| Price per minute | Yes | $0.05/min $0.05 per minute. | Source | 2026-11-04 |
| Latency claim | Unknown | Home page discusses latency but gives no figure. | — | 2026-11-04 |
| Languages | Partial | 15 (changelog) A docs changelog entry says "Total of 15 languages are now supported by the model"; may be out of date. | Source | 2026-11-04 |
| Phone numbers & telephony | Yes | Twilio, Telnyx, Plivo, SIP Twilio, Telnyx, Plivo and SIP documented; SIP priced at 0.5¢/min. | Source | 2026-11-04 |
| Bring your own LLM | Unknown | Ultravox is its own speech-native model; no BYO LLM option found. | — | 2026-11-04 |
| Custom / BYO voice | Yes | Cloning + ExternalVoice 1 custom voice clone on Pay As You Go, 5 on Pro; docs also describe ExternalVoices from other TTS providers. | Source | 2026-11-04 |
| Interruption handling | Yes | minimumInterruptionDuration minimumInterruptionDuration parameter in the call API. | Source | 2026-11-04 |
| Tool calling & MCP | Partial | Custom tools Custom tools API documented; MCP not found (docs MCP page 404). | Source | 2026-11-04 |
| HIPAA / BAA | Unknown | No HIPAA or BAA statement on the pricing page we checked. | — | 2026-11-04 |
| SOC 2 | Unknown | Security page returned 404. | — | 2026-11-04 |
| Free tier / credits | Yes | 30 free minutes First 30 minutes free, up to 5 concurrent calls. | Source | 2026-11-04 |
Latency, compliance and language figures are the vendor's own claims. We link them; we don't test them.
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