One API, one plan. Priced per character.
Text to speech is billed per character. Every plan includes a month of usage, then charges its published rate for anything past it. Voice agents are a separate enterprise track, quoted per contract.
- Text to speech from $6 per 1M characters
- 500K characters free every month, no credit card
- Voice agents are enterprise, quoted per contract
Choose the plan that fits the traffic.
Every figure below is text to speech. Voice agents left the self-serve ladder and are priced per contract, so the month's balance is now sized on characters alone.
Free
Build and ship on the text-to-speech API. No credit card.
- Included every month
- 500K characters
- After that
- Pauses until next month
Included features
- 900+ voices, 30+ languages
- Commercial use · community support
Starter
For solo devs and early-stage projects.
- Included every month
- 1.9M characters
- After that
- $10 per 1M characters
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
Pro
For teams shipping speech in production.
- Included every month
- 13.5M characters
- After that
- $8 per 1M characters
Included features
- Cheaper rate, so the balance goes further
- Voice cloning, no per-plan limit
- Priority support
Scale
For serious production speech traffic.
- Included every month
- 78M characters
- After that
- $6 per 1M characters
Included features
- Our lowest published rate
- Batch synthesis, the only plan that has it
- Up to 25 seats · 100 service accounts
- Dedicated support + SLA
- Included every month
- Committed volume
- After that
- Volume pricing
- Custom volume and rate commitments
- SSO, SOC 2 Type II, custom DPA
- Custom voices, models and integrations
- Dedicated success manager
Voice agents are not on the ladder above. They are scoped with our team.
Voice agents are an enterprise product. Deployments are scoped with our team and priced per contract, so there is no self-serve plan and no published per-minute rate.
Quoted per contract
Volume, concurrency, telephony, and compliance are agreed up front, so there is no published per-minute rate to read off this page.
- Inbound and outbound calls on your carrier or ours
- Deterministic workflows, tool calling, and webhooks
- Knowledge bases, memory, and full call transcripts
- Simulated callers and evals before you go live
- SSO, SOC 2 Type II, and a custom DPA
- A forward-deployed engineer through launch
Credit is dollars, not points.
Your plan does not hand you a bucket of opaque credit units. It adds a month of usage to one balance, in dollars, drawn down at the per-character rate printed on your plan.
- 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.
- 02
Every request draws from it
Synthesis is drawn down per character at your plan's rate, in dollars, so what a request costs is arithmetic you can do yourself.
- 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.
Billing questions
What exactly do I get for the monthly fee?
Can I buy voice agents on one of these plans?
Does the unused balance roll over?
How is usage calculated?
Are there hidden fees or commitments?
What happens when the balance runs out?
How do I add more money?
Can I switch plans at any time?
What payment methods do you accept?
Is there a long-term commitment?
"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.