Two APIs, one plan. Priced in the units you use.

Text to speech is billed per character and voice agents per minute. Every plan includes a month of usage, then charges its published rate for anything past it.

  • Text to speech from $6 per 1M characters
  • Voice agents from $0.068 per minute, all-in
  • Free every month, no credit card

Choose the plan that fits the traffic.

Included usage assumes the whole month goes to text to speech. The same balance also covers voice agents, split however you like.

Included usage assumes the whole month goes to voice agents. The same balance also covers text to speech, split however you like.

Free

$0/month

Build and ship on both APIs. No credit card.

Included every month
500K characters
After that
Pauses until next month
Included every month
60 minutes
After that
Pauses until next month
Concurrent calls
3
Get Started
Included features
  • 1,500+ voices, 30+ languages
  • Commercial use · community support
  • LLM, STT and TTS included, no passthrough
  • No provisioned numbers, bring your own carrier, SIP, or Twilio
  • Commercial use · community support

Starter

$10/month

For solo devs and early-stage projects.

Included every month
1.9M characters
After that
$10 per 1M characters
Included every month
250 minutes
After that
$0.075 per minute
Concurrent calls
6
Start Building
Included features
  • Voice cloning, streaming, SSML
  • Keep going past the balance with a top-up, no hard cap
  • Up to 3 seats · service accounts for CI
  • Community support
  • 1 phone number included, or bring your own carrier
  • Keep going past the balance with a top-up, no hard cap
  • Up to 3 seats · service accounts for CI
  • Community support

Pro

$99/month

For teams shipping voice in production.

Included every month
13.5M characters
After that
$8 per 1M characters
Included every month
1,500 minutes
After that
$0.07 per minute
Concurrent calls
12
Start Pro
Included features
  • Cheaper rate, so the balance goes further
  • Voice cloning, no per-plan limit
  • Priority support
  • Cheaper rate, so the balance goes further
  • 5 phone numbers included, or bring your own carrier
  • Premium models (GPT-4.1, GPT-5.6 Luna) + custom LLM endpoints
  • Priority support

Scale

$499/month

For serious production voice traffic.

Included every month
78M characters
After that
$6 per 1M characters
Included every month
6,800 minutes
After that
$0.068 per minute
Concurrent calls
30
Start Scale
Included features
  • Our lowest published rate
  • Up to 25 seats · 100 service accounts
  • Dedicated support + SLA
  • Our lowest published rate
  • 20 phone numbers included, or bring your own carrier
  • Batch campaigns, the only plan that has them
  • Up to 25 seats · 100 service accounts
  • Dedicated support + SLA

Enterprise

Custom

For global volume, compliance, and procurement.

Talk to sales
Included every month
Committed volume
After that
Volume pricing
Included every month
Committed volume
After that
From $0.06 per minute
Concurrent calls
Raised per contract
  • Custom volume & rate commitments
  • SSO, SOC 2 Type II, custom DPA
  • Custom voices, models & integrations
  • Dedicated success manager
  • Custom volume & rate commitments
  • SSO, SOC 2 Type II, custom DPA
  • Custom voices, models & integrations
  • Dedicated success manager
How the balance works

Credit is dollars, not points.

Your plan does not hand you a text-to-speech quota and a separate voice-agent quota. It adds a month of usage to one balance, in dollars, and both APIs draw from it, so nothing is stranded in a product you do not use.

  1. 01

    Included every month

    Each renewal adds the month's usage to one workspace balance. It expires at the end of the billing period; money you top up yourself never does.

  2. 02

    Both APIs draw from it

    Text to speech per character and voice agents per minute, each at your plan's rate. Put half into each and you get half of each.

  3. 03

    After that, pay as you go

    Past the balance, a paid plan spends whatever you have topped up, at the same rates. Auto top-up, off until you switch it on, keeps production from stalling. Free pauses until the next month.

One rate. Everything included.

Voice-agent minutes are all-in. Most platforms quote a platform fee, then bill the LLM, speech, and telephony on top. SpeechifyAI is one line item per minute.

Most platforms
Platform fee
LLM passthrough+
Speech-to-text+
Text-to-speech+
Telephony+

Five line items, each metered separately. The bill takes a spreadsheet.

SpeechifyAI
From $0.07/min
  • LLM
  • Speech-to-text
  • Text-to-speech
  • Telephony orchestration

One line item. No passthrough, no token math — and 60 free minutes every month.

Voice Agent API detailsText-to-speech details

Billing questions

What exactly do I get for the monthly fee?
A month of usage, plus the plan's rates, limits, and features. The month is one balance for both APIs: on Starter it covers 1.9M characters of text to speech or 250 minutes of voice agents, or any split between them. There is no text-to-speech allowance and no separate voice-agent allowance to strand usage in.
I only use text to speech. What do I actually get?
The whole balance, at your plan's per-character rate, with nothing reserved for voice agents: 500K characters a month on the free plan, 1.9M on Starter, 13.5M on Pro and 78M on Scale. Past that, paid plans keep going from a top-up at $10, $8 and $6 per 1M characters.
Does the unused balance roll over?
The monthly balance is minted at the start of each billing period and expires at the end of it, so it does not roll over. Money you add yourself is different: a top-up you purchase stays on your balance until you spend it.
How is usage calculated?
Text-to-speech is billed by the number of characters sent to the API (whitespace and SSML tags are not counted). Voice agents are billed per minute of conversation, with text-to-speech, speech-to-text, LLM inference, and orchestration all included — no passthrough fees.
Are there hidden fees — LLM tokens, passthrough, or commitments?
No. Voice-agent minutes are all-in: LLM inference, speech-to-text, text-to-speech, and orchestration are included in the per-minute rate. No LLM passthrough, no per-token billing, and no annual commitment — the rate you see is the rate you pay, and you can cancel anytime.
What happens when the balance runs out?
On Starter, Pro, and Scale, usage carries on against whatever you have topped up, drawn at your plan's rate: text-to-speech at $10 per 1M on Starter, $8 on Pro, $6 on Scale; voice-agent minutes at $0.075/min on Starter, $0.07/min on Pro, $0.068/min on Scale. If that runs to zero too, requests pause until you add funds, so switch on auto top-up if production must never stall. It is off until you turn it on. Free cannot top up at all and simply pauses until the next billing cycle. We notify you as you approach the limit either way.
How do I add more money?
From your dashboard. You can buy a top-up whenever you like, and turn on auto top-up to add a set amount whenever the balance drops below a threshold. It is all in dollars at the published rates, so there are no opaque credit units and no guessing what a call costs. The free tier cannot top up.
Can I switch plans at any time?
Yes. You can upgrade or downgrade your plan at any time from your dashboard. Upgrades take effect immediately and you're charged a prorated amount for the rest of the cycle. Downgrades (and cancellations) take effect at the end of your current billing term, so you keep what you've already paid for until then.
What payment methods do you accept?
We accept all major credit and debit cards (Visa, Mastercard, American Express) as well as ACH bank transfers for enterprise plans. All payments are processed securely through Stripe.
Is there a long-term commitment?
No. Self-serve plans (Starter, Pro, and Scale) are month-to-month with no commitment. Enterprise plans can be structured as annual agreements with volume discounts. You can cancel at any time.
How do phone numbers and carriers work?
Paid plans include phone numbers — 1 on Starter, 5 on Pro, and 20 on Scale — provisioned from your dashboard. On any plan, including Free, you can bring your own carrier (BYOC): connect your own SIP trunk or Twilio account at no extra cost.

"Cancel anytime" applies to self-serve plans (Free, Starter, Pro, and Scale), with no annual contract or lock-in. Downgrade or close your workspace whenever you like. Enterprise plans follow the terms of your agreement.

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