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Vocalize

Free plan APIWeb

What Vocalize is

Vocalize is a web and API service for generating AI cover songs and text-to-speech using community-uploaded voices or voices users create. A short audio sample can train a text-to-speech voice, while a voice-to-voice RVC model supports singing and voice swapping. Its searchable library contains user-uploaded AI voice models and accepts RVC .pth and .index files. Vocalize says text-to-speech takes a few seconds and covers take 10 to 60 seconds; free accounts may wait in a shared queue during busy periods. New signups receive 3 credits without providing a credit card, and the service also offers a free trial. Its REST API supports speech generation, streaming, instant cloning from a 10–30 second clip, direction tags and 80+ languages. An OpenAI-compatible endpoint can be used with existing /v1/audio/speech integrations by changing the base URL. API audio generation costs $0.048 per minute plus $0.003 per request, prepaid with no subscription. Converter is listed at $9.99 a month, while the page also displays $12.99 and paid access is described as starting at $12.99/mo.

Who it suits

It suits people creating cover songs or text-to-speech audio, and developers integrating speech generation through an API. Commercial use is limited to domestic and private use unless Vocalize specifically approves otherwise.

What it does well

Searchable library of user-uploaded AI voice models.
Train voices from short audio samples.
API supports 80+ languages and streaming.
Three signup credits without a credit card.
Free trial is offered.

What to know first

Free accounts may wait in a shared queue.
Commercial use requires Vocalize approval.
API charges per audio minute and request.
Paid pricing is displayed inconsistently.

Limits

Free accounts may wait in a shared queue during busy periods. The terms restrict use to domestic and private purposes unless Vocalize specifically endorses or approves commercial use.

Plans

Plan	Billed and limits	Price
Vocalize API	$0.048 per minute of generated audio plus $0.003 per request; prepaid, no subscription · Thousands of voices · Private voice clones · 80+ languages · Streaming · OpenAI-compatible endpoint	Free
API prepaid usage	prepaid, no subscription; also $0.003 per request · Text-to-speech API usage billed per generated audio minute and request	$0.05, paid once
Converter	monthly subscription; page also shows $12.99 · Unlimited generations · queue priority · full AI voice library · unlimited model uploads · simultaneous generations · advanced conversion settings · high output quality · 24/7 live chat	$9.99 a month

As vocalize.fm lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

Open https://www.vocalize.fm/.
Sign up to receive 3 credits without entering a credit card.
Use the web service or access the REST API.
Choose Converter for a monthly subscription, or use the prepaid API plan.
For a custom voice, provide a short audio sample or train a voice-to-voice RVC model.

Verdict

Vocalize offers voice creation and audio generation through its web service and API, with free signup credits and a trial. Check the applicable paid terms and commercial-use restriction before relying on it for a project.

Questions

Does Vocalize have a free option?

New signups receive 3 credits without entering a credit card, and a free trial is offered.

How much does Vocalize cost?

The API plan charges $0.048 per minute of generated audio plus $0.003 per request, prepaid with no subscription. Converter is listed at $9.99 a month; the page also displays $12.99 and says paid access starts at $12.99/mo.

Which platforms are available?

Vocalize is listed on web and through its API.

Can I use Vocalize commercially?

The terms limit use to domestic and private purposes unless Vocalize specifically endorses or approves commercial use.

What does the API support?

It supports speech generation, streaming, cloning from a 10–30 second clip, direction tags, and 80+ languages. It also has an OpenAI-compatible endpoint.

Who operates Vocalize?

The terms identify Guava LLC, doing business as Vocalize, as the operator. Its registered office is in Sheridan, Wyoming, United States.

Facts from Vocalize's own pages

AI cover processing: The service separates, converts and remixes vocals; cover generation usually takes 10 to 60 seconds. · vocalize.fm, 21 Oct 2026
API: The REST API supports speech generation, streaming, instant cloning from a 10–30 second clip, direction tags, and 80+ languages. · docs.vocalize.fm, 8 Oct 2026
API documentation depth: Published documentation covers quickstart, authentication, streaming, direction tags, voices, cloning, billing, limits, errors, changelog and an OpenAPI specification. · docs.vocalize.fm, 21 Oct 2026
API integration: The API provides an OpenAI-compatible endpoint for switching existing /v1/audio/speech integrations by changing the base URL. · docs.vocalize.fm, 8 Oct 2026
API languages: The API documentation claims more than 80 languages with language detection from text. · docs.vocalize.fm, 21 Oct 2026
API minimum funding: The quickstart says API billing requires adding at least $10 credit and requests fail when the prepaid balance is insufficient. · docs.vocalize.fm, 21 Oct 2026
API protocol: Vocalize exposes HTTPS REST endpoints under https://api.vocalize.fm/v1 using bearer API keys. · docs.vocalize.fm, 21 Oct 2026
API streaming: A streaming text-to-speech endpoint starts returning audio as it is generated. · docs.vocalize.fm, 21 Oct 2026
Commercial-use restriction: The terms limit users to domestic and private use unless Vocalize specifically approves commercial or business use. · vocalize.fm, 21 Oct 2026
Community models: Every voice model is user-generated and members can upload their own models. · vocalize.fm, 21 Oct 2026
Company headquarters: The registered office is listed at 1309 Coffeen Avenue, STE 1200, Sheridan, Wyoming 82801, United States. · vocalize.fm, 21 Oct 2026
Company legal name: The terms identify Guava LLC, a Wyoming limited liability company, as the operator doing business as Vocalize. · vocalize.fm, 21 Oct 2026
Copyright process: Guava LLC publishes a DMCA process requiring copyright notices to be sent to [email protected] and says repeat infringers may be suspended or terminated. · vocalize.fm, 21 Oct 2026
External technical assessment: Scam Detector rates vocalize.fm 68.1/100, reports valid HTTPS, and records the domain registration date as April 27, 2023. · scam-detector.com, 21 Oct 2026
External trust assessment: ScamAdviser assigns vocalize.fm a trust score of 0 and flags hidden WHOIS ownership, chargeback-prevention concerns and mainly negative reviews. · scamadviser.com, 21 Oct 2026
Founded year: No founded year is stated on the official pages reviewed. · vocalize.fm, 21 Oct 2026
Free access: New signups receive 3 credits to try the service without entering a credit card. · vocalize.fm, 8 Oct 2026
Free credits: New accounts receive three credits without entering a credit card. · vocalize.fm, 21 Oct 2026
Generation speed: Text-to-speech takes a few seconds and AI covers take 10 to 60 seconds; free accounts may wait in a shared queue at busy times. · vocalize.fm, 8 Oct 2026
Headquarters: Sheridan, Wyoming, United States · vocalize.fm, 28 Sept 2026
Limit: generation variability: AIChief notes that generation times vary with demand and that unlimited, priority access requires a subscription. · aichief.com, 21 Oct 2026
Limit: missing signup credits reported: Two Trustpilot reviewers said they received no free credits after signup and were shown paid pricing instead. · trustpilot.com, 21 Oct 2026
Limit: voice similarity complaint: A Trustpilot reviewer reported that the generated voice was not similar to the advertised voice. · trustpilot.com, 21 Oct 2026
OpenAI compatibility: The API includes an OpenAI-compatible speech endpoint so clients can switch by changing the base URL. · docs.vocalize.fm, 21 Oct 2026

Where Vocalize stands on Freedom251

AI Singing Voice Generators#17 of 25