Roark
Author a metric, pin a few test calls, then run a battery across real PSTN / WebRTC traffic.
OUR TAKE
Pick Roark for voice teams who will spend the $50 credit, then $0.15 / min simulations. $0.15 / min is plus telephony/STT/TTS at cost.
Good fit
Voice teams who will spend the $50 credit, then $0.15 / min simulations.
Poor fit
People who need a $100 flat eval seat (Coval Starter) or a prompt YAML (Promptfoo).
Pay as you go · Team $500 · Enterprise $4
USD, before tax · Checked 2026-10-28 · roark.ai/pricing
Compare:
OUR TAKE
Pick Roark for voice teams who will spend the $50 credit, then $0.15 / min simulations. $0.15 / min is plus telephony/STT/TTS at cost.
Good fit
Voice teams who will spend the $50 credit, then $0.15 / min simulations.
Poor fit
People who need a $100 flat eval seat (Coval Starter) or a prompt YAML (Promptfoo).
Pay as you go · Team $500 · Enterprise $4
USD, before tax · Checked 2026-10-28 · roark.ai/pricing
Compare:
What it costs
USD, before tax · Checked 2026-10-28 · roark.ai/pricing
Pay as you go
to start. free credit. Simulation / min + provider pass-through. Metric eval / metric / min. Transcription / min if you do not send a transcript. 1 project; 5 seats; 10 concurrent lines
$0
Team
of included usage. Sim / min; metric / metric / min. 5 projects; 10 seats; 25 lines
$500
Enterprise
from ,000 / month committed. Sim from / min. Extra concurrency / 10 lines / mo on PAYG and Team
Lowest paid
$4
Checked 2026-10-28·roark.ai/pricing
Before you pay
Good fit
Voice teams who will spend the $50 credit, then $0.15 / min simulations.
Poor fit
People who need a $100 flat eval seat (Coval Starter) or a prompt YAML (Promptfoo).
Watch out
$0.15 / min is plus telephony/STT/TTS at cost
Instead, try
Vapi if build and host the agent ($0.05 / min hosting); Retell if phone infra $0.055 / min
Compare Roark with
Limits, in full
- 01
$0.15 / min is plus telephony/STT/TTS at cost
- 02
Live calls still burn metric-minutes
- 03
This is not a voice-agent host
If Roark isn't it
Why: build and host the agent ($0.05 / min hosting).
Paid only$5
Hosting is $0.05/min plus providersChecked 2026-10-22·vapi.ai/pricing
vs Roark
Why: phone infra $0.055 / min.
Free· paid from$0.015
Infra is not the all-in rateChecked 2026-10-22·retellai.com/pricing
vs Roark
Why: local text evals when you do not need PSTN.
Free· open source,MIT
Community red team is 10k probes/monthChecked 2026-10-27·promptfoo.dev/pricing
vs RoarkLimits & alternatives3 limits · Vapi, Retell, Promptfoo instead
Limits, in full
- 01
$0.15 / min is plus telephony/STT/TTS at cost
- 02
Live calls still burn metric-minutes
- 03
This is not a voice-agent host
If Roark isn't it
Why: build and host the agent ($0.05 / min hosting).
Paid only$5
Hosting is $0.05/min plus providersChecked 2026-10-22·vapi.ai/pricing
vs RoarkWhy: phone infra $0.055 / min.
Free· paid from$0.015
Infra is not the all-in rateChecked 2026-10-22·retellai.com/pricing
vs RoarkWhy: local text evals when you do not need PSTN.
Free· open source,MIT
Community red team is 10k probes/monthChecked 2026-10-27·promptfoo.dev/pricing
vs RoarkPricing notes & what changed3 notes · 1 sources
What it is for
Author a metric, pin a few test calls, then run a battery across real PSTN / WebRTC traffic. Use it when the job is score the voice agent on audio-native metrics, not host the agent.
It is not open source. Pay as you go starts at $0 with $50 free credit (no card).
What makes it unique: the cover is Roark’s official Studio hub — Author / Evaluate, recent runs (Disclosure Completeness, PII Handling) — not a green wordmark.
Key features
- Studio hub — author a metric or run a battery (cover; Studio).
- Simulations — real PSTN + WebRTC, 45 languages (Pricing).
- 500+ metrics — plus unlimited custom metrics on every plan.
- Production monitoring — score live calls as metric-minutes only.
- API / MCP / CLI — same usage pool.
Who it's for
Best fit: voice teams who will spend the $50 credit, then $0.15 / min simulations.
Poor fit: people who need a $100 flat eval seat (Coval Starter) or a prompt YAML (Promptfoo).
Pricing
Verified 2026-10-28 from roark.ai/pricing.
- Pay as you go — $0 to start. $50 free credit. Simulation $0.15 / min + provider pass-through. Metric eval $0.04 / metric / min. Transcription $0.024 / min if you do not send a transcript. 1 project; 5 seats; 10 concurrent lines.
- Team — $500 / month of included usage. Sim $0.10 / min; metric $0.02 / metric / min. 5 projects; 10 seats; 25 lines.
- Enterprise — from $4,000 / month committed. Sim from $0.05 / min. Extra concurrency $100 / 10 lines / mo on PAYG and Team.
SOC 2 Type II and a HIPAA BAA are listed on every plan.
Limitations / costs
- $0.15 / min is plus telephony/STT/TTS at cost.
- Live calls still burn metric-minutes.
- This is not a voice-agent host.
Alternatives
- Vapi — build and host the agent ($0.05 / min hosting).
- Retell — phone infra $0.055 / min.
- Promptfoo — local text evals when you do not need PSTN.
Official tutorial
No official first-party how-to YouTube confirmed as of 2026-10-28. Written path: Studio plus Pricing.
Website
Source
Catalog row curated for AI Tools Nav. Cover is Roark’s official Studio hub. $50 credit; sim $0.15 / min; Team $500 / mo from roark.ai/pricing.
Last verified
2026-10-28 editorial check.