Do you offer voice cloning?

No. Every voice we serve is one we designed and published, with a fixed sample line and a stable id. There is no cloning endpoint.

Can the free credits be used commercially?

The free grant covers personal and evaluation use. Any purchase makes commercial use available on the account.

Wallet credits, including the free grant and any refill you buy, persist. Plan credits reset each billing cycle, and spend draws the plan bucket first so the resetting half is used before the one that keeps.

Do you publish quality comparisons against UVoice AI?

No. We publish no quality or accuracy figures of our own, and we will not rank another Thai vendor. Generate the same script on both and listen.

How current are the prices here?

They come from each vendor's published rates, recorded in one place and re-checked on a fixed schedule; the month of the last check is at the top of the page.

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Rates and claims last checked September 2026

Paxa Labs and UVoice AI for Thai speech

A clip studio with voice cloning and a speech API compared on what each is shaped to do, how each bills, and which one belongs inside your software.

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UVoice AI is built around a studio where a person produces clips: product reviews, podcasts, narration. Voice cloning and a flat monthly Persona plan serve that person, and an API sits beside the studio. Both products are made for Thai first. The comparison is about the shape of each product. What we sell is the speech layer of somebody else's product: a call your software makes while a user waits, or while an LLM is still writing the sentence being spoken. A team that needs a studio should not buy an API, and the reverse holds too.

Sources:UVoice AI packages(opens in a new tab)

What differs

Dimension	Paxa Labs	UVoice AI
What the product is shaped to do	Serve speech inside your application, request by request, including while the text is still being generated. The playground is a test surface for the API.	A studio for producing clips, with voice cloning, and an API beside it.
Real-time delivery	Chunked HTTP streaming and a live websocket. Audio starts before the full text exists.	Their API returns a finished WAV or MP3 file, or a URL to one, as their documentation describes.
Word timestamps	Word, sentence, or utterance spans on the same call, at a stated multiplier on the per-character rate.	Their API documentation describes no timing data.
Text per request	Up to 5,000 characters on every voice.	1,500 characters on Premium and Natural voices and 5,000 on Standard, per their API documentation.
Whether credits expire	Wallet credits, the free grant and refills included, persist. Plan credits reset each billing cycle.	Credit packs are valid for 365 days from the latest top-up, as their FAQ states.

Sources:UVoice AI packages(opens in a new tab)UVoice AI API documentation(opens in a new tab)

Paxa TTS Flash, per 1M characters: $15
UVoice AI: $132-237
Their rate, as a multiple: 8.8-16×

Both figures are published list rates normalized to one million characters. Theirs is the Standard and Natural voice rate across their baht credit packs, largest pack to smallest; Premium voices bill twice that, and they do not count spaces.

What it costs at your volume

Speech, per month	Paxa Labs	UVoice AI	Difference
100,000About 1.8 hours of speech	$1.50	$13.21-23.72	$11.71 less
1,000,000About 18 hours	$15	$132.10-237.24	$117.10 less
5,000,000About 92 hours	$75	$660.51-1,186.19	$585.51 less
20,000,000About 370 hours	$300	$2,642.04-4,744.74	$2,342.04 less

Every figure is the two published rates multiplied by the volume beside it. Where the other vendor publishes a range, the low end is compared and the range is shown.

When UVoice AI is the better choice

If you need a voice that is your own, they clone it and we do not. Every voice we serve is one we designed and published with a fixed sample line, and there is no cloning endpoint. Their Persona plans are a flat monthly price with a daily quota, which suits a person producing clips by hand. Their studio is built around that person. Choose us when the consumer of the speech is your own software and the bill should follow the characters it sends.

Questions

Do you offer voice cloning?: No. Every voice we serve is one we designed and published, with a fixed sample line and a stable id. There is no cloning endpoint.
Can the free credits be used commercially?: The free grant covers personal and evaluation use. Any purchase makes commercial use available on the account.
Do credits expire?: Wallet credits, including the free grant and any refill you buy, persist. Plan credits reset each billing cycle, and spend draws the plan bucket first so the resetting half is used before the one that keeps.
Do you publish quality comparisons against UVoice AI?: No. We publish no quality or accuracy figures of our own, and we will not rank another Thai vendor. Generate the same script on both and listen.
How current are the prices here?: They come from each vendor's published rates, recorded in one place and re-checked on a fixed schedule; the month of the last check is at the top of the page.

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