One balance. You decide what it buys.

Your monthly fee buys usage in US dollars, not a bucket of characters and a separate bucket of minutes. Put all of it into text-to-speech, all of it into voice agents, or any split you like. The rate is the same either way, and nothing is stranded in a product you do not use.

  • Free: 500K characters, or 60 agent minutes
  • $10: 1.5M characters, or 250 minutes
  • $499: 75M characters, or 6,800 minutes

Choose the plan that fits the traffic.

The two usage lines on each plan are alternatives, not a pair: each is the whole month spent on that one product. Rates fall as you move up, so the same money buys more.

Free

$0/month

Build and ship on both APIs. No credit card.

Included each month
About 500K characters, or 60 minutes

One balance: all of one, all of the other, or any split between them

Your rates
$10 / 1M characters · $0.075 / minute
Concurrency
3 concurrent calls
Get Started
Included features
  • 1,500+ voices, 30+ languages
  • LLM, STT & TTS included — no passthrough
  • Balance runs out and usage pauses, never a surprise bill
  • 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 each month
About 1.5M characters, or 250 minutes

One balance: all of one, all of the other, or any split between them

Your rates
$10 / 1M characters · $0.075 / minute
Concurrency
6 concurrent calls
Start Building
Included features
  • Up to 3 seats · service accounts for CI
  • Keep going past the balance with a top-up, no hard cap
  • 1 phone number included, or bring your own carrier
  • Voice cloning, streaming, SSML
  • Community support

Pro

$99/month

For teams shipping voice in production.

Included each month
About 13M characters, or 1,500 minutes

One balance: all of one, all of the other, or any split between them

Your rates
$8 / 1M characters · $0.07 / minute
Concurrency
12 concurrent calls
Start Pro
Included features
  • Cheaper rates, 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
  • Voice cloning, no per-plan limit
  • Priority support

Scale

$499/month

For serious production voice traffic.

Included each month
About 75M characters, or 6,800 minutes

One balance: all of one, all of the other, or any split between them

Your rates
$6 / 1M characters · $0.068 / minute
Concurrency
30 concurrent calls
Start Scale
Included features
  • Our lowest published rates on both APIs
  • 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 each month
Committed volume across both APIs
Your rates
Volume discounts · from $0.06 / minute
Concurrency
Custom, raised per contract
  • Custom volume & rate commitments
  • SSO, SOC 2 Type II, custom DPA
  • Custom voices, models & integrations
  • Dedicated success manager
How credit works

Credit is dollars, not points.

Your plan does not hand you a text-to-speech quota and a voice-agent quota. It hands you one balance, and you decide what it buys. Scale is about 75M characters if you never place a call, or about 6,800 agent minutes if you never synthesise a word, or any split of the two you like.

  1. 01

    Your plan mints one balance

    Every renewal puts the month's usage into a single workspace balance. There is no text-to-speech half and no voice-agent half to run out of separately.

  2. 02

    Nothing is reserved per product

    Spend Scale entirely on speech and it is about 75M characters. Spend it entirely on calls and it is about 6,800 minutes. Half of each gets you half of each.

  3. 03

    Then it keeps going, or stops

    Past the balance, a paid plan spends whatever you have topped up, and auto top-up (off until you switch it on) keeps that funded so production never stalls. Free cannot top up, so usage pauses until the next cycle.

Free

$0 / month
All text-to-speech
About 500K characters
Or all voice agents
About 60 minutes
Your rates
$10 / 1M · $0.075 / min

Starter

$10 / month
All text-to-speech
About 1.5M characters
Or all voice agents
About 250 minutes
Your rates
$10 / 1M · $0.075 / min

Pro

$99 / month
All text-to-speech
About 13M characters
Or all voice agents
About 1,500 minutes
Your rates
$8 / 1M · $0.07 / min

Scale

$499 / month
All text-to-speech
About 75M characters
Or all voice agents
About 6,800 minutes
Your rates
$6 / 1M · $0.068 / min

Enterprise

Custom
All text-to-speech
Committed volume
Or all voice agents
Committed volume
Your rates
From $0.06 / min

The two usage columns are alternatives, not a pair you get at once: each is the whole balance spent on that one product, and any split between them is yours to choose. Figures are rounded down, so the balance always covers at least this much. It is minted at the start of each billing period and expires at the end of it; money you top up yourself never expires.

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 on one workspace balance, plus the plan's rates, limits, and features. What that balance buys is your choice: Pro covers about 13M characters if you only synthesise speech, about 1,500 all-in minutes if you only make calls, 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. That is about 1.5M characters a month on Starter, 13M on Pro and 75M on Scale, and 500K on the free plan. It holds in reverse too: a caller who never synthesises a word gets about 250, 1,500 and 6,800 all-in minutes on those plans. Any split between the two works exactly as you would expect. We round these figures down, so your balance always covers at least them.
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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