AI Voice Agents · pricing · Updated September 2026
Ultravox pricing (2026)
Ultravox starts at $0/mo (Pay as You Go) as checked on 2026-09-10, read from Ultravox's own pricing page; 3 plans. Best for Latency-sensitive agents where skipping the STT step materially improves turn-taking. Every figure below links to its source and the date we captured it.
At a glance
- Entry price: $0/mo (Pay as You Go)
- Free tier: Yes
- Compliance: HIPAA — · SOC 2 — · GDPR —
- 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
As of · every figure below links to its source
Ultravox plans & pricing
| 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 |
Last verified 2026-09-10. 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.
Price changes
No change record has cleared two sources yet, so nothing is published on the wire.
Capabilities
Integrations: SIP trunking, Twilio, Model Context Protocol (MCP).
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.
Frequently asked questions
How much does Ultravox cost?
Ultravox starts at $0/mo (Pay as You Go); it has 3 published plans. Verified 2026-09-10.
What are cheaper alternatives to Ultravox?
Cheaper AI voice agents than Ultravox (entry $0/mo) include Cartesia at $5/mo, ElevenLabs Agents at $6/mo, LiveKit Agents at $50/mo. Verified 2026-09-10.
Does Ultravox support HIPAA?
Ultravox HIPAA support: —. SOC 2: —. GDPR: —.
Does Ultravox have a free plan?
Ultravox free tier: Yes.
Ultravox vs alternatives
Compare all AI voice agents · True cost of AI voice agents · SOC 2-certified AI voice agents · HIPAA-compliant AI voice agents · GDPR-compliant AI voice agents · Open data · MCP
Cheaper AI voice agents alternatives
- LiveKit Agents from $50/mo
- ElevenLabs Agents from $6/mo
- Cartesia from $5/mo
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Related categories
Display this standing
Ultravox currently holds a bronze deskmark here — Rank 13 of 13 · AI Voice Agents. Anyone may show it. There is nothing to apply for, nothing to pay, and displaying it changes no score: the standing comes from the published algorithm and money never touches it.
The image is drawn from our live data, so it follows the standing rather than freezing it: if Ultravox moves up or down a tier, the plaque on your own site says so at our next publish. Nothing is tracked beyond the ordinary web-server log that records any image request.