# Ultravox pricing (2026): plans, cost, and compliance

**Entry price:** $0 (free)/mo (Pay as You Go). Among the 13 ai voice agents we track it is the cheapest; median entry $0/mo.
**Domain:** ultravox.ai
**Free tier:** Yes
**Compliance:** HIPAA Not published · SOC 2 Not published · GDPR Not published
**Integrations:** SIP trunking, Twilio, Model Context Protocol (MCP)
**Best for:** Latency-sensitive agents where skipping the STT step materially improves turn-taking; Developers who want a flat, predictable per-minute rate with no burst multiplier; Outbound calling campaigns needing a scheduler plus unlimited concurrency for a fixed $100

## Plans

| Plan | Monthly | Annual | Billing | Notes | Source |
| --- | --- | --- | --- | --- | --- |
| Pay as You Go | $0 | — | per_minute | No platform fee: first 30 minutes free as a one-time allowance, then $0.05/min, capped at 5 concurrent calls. SIP telephony adds $0.005/min. Text and thread usage is metered on this tier too, at $2.00 per 1M input tokens (uncached) and $15.00 per 1M output tokens. Unlimited playground access and an explicit no-surge-pricing guarantee. The 5-call concurrency ceiling, not the rate, is what forces an upgrade. | ultravox.ai |
| Pro | $100 | — | hybrid | $100/month platform fee buys unlimited concurrency, an outbound call scheduler, 5 custom voices and 20 RAG corpora. Minutes are NOT included: usage still bills at $0.05/min on top of the fee, with SIP at the slightly lower $0.0048/min. Text and thread usage metered at $2.00 per 1M input tokens (uncached) and $15.00 per 1M output tokens. minutesIncluded is null because the page publishes no bundled allowance at this tier. | ultravox.ai |
| Enterprise | quote-only | — | custom | Quote-only, so monthlyUsd is null: priority SLA, organizational support and fully customizable configuration. Rates negotiated. | ultravox.ai |

## Price changes

No change record has cleared two sources yet, so nothing is published on the wire.

**Key features:** Speech-native model that consumes audio directly rather than chaining STT to an LLM, which removes a transcription hop from latency; $0.05/min for the model layer, positioned well below realtime-API alternatives; No surge pricing guaranteed on every tier, unlike vendors that double rates past concurrency limits; Built-in RAG corpora (20 on Pro) and an outbound call scheduler; Unlimited concurrency for a flat $100 rather than a per-tier ladder.

**Plan limits:** The $100 Pro fee includes zero minutes — it buys concurrency and features only, so all usage is additive; Pay-as-you-go is hard-capped at 5 concurrent calls, which rules it out for any production inbound line; No HIPAA, SOC 2 or GDPR statement appears on the pricing page, so regulated buyers must ask and nothing is asserted here; The 30 free minutes are a one-time allowance, not a monthly one; Token usage for text and threads is metered separately on every tier, on top of the per-minute voice rate.

Sources: 1 · Last verified 2026-09-10
Provenance: Re-verified against ultravox.ai/pricing on 2026-09-10. All three tiers, the $0.05/min rate, the $100 Pro platform fee and both SIP rates confirmed unchanged. ONE CORRECTION: the draft recorded token pricing ($2.00 per 1M uncached input, $15.00 per 1M output) on the Pro plan only; the live page applies the same token rates to Pay as You Go as well, so they are now recorded on both. Compliance stays null across the board because the pricing page makes no HIPAA, SOC 2 or GDPR claim.
Canonical: https://frontdeskreview.com/software/ai-voice-agents/ultravox/
Cite: Per The Front Desk Review, Ultravox's entry plan was $0 (free)/mo as of 2026-09-10 — https://frontdeskreview.com/software/ai-voice-agents/ultravox/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl