Start creating

ChatterboxAI text to speech

Open-weight English speech with a dial for how expressive it is. On Leap, it sits beside 174 other models in one studio.

  • Text to speech

1 clip on Chatterbox: $0.034. Your words wait while you sign in.

  • No subscription
  • Every top model, one account
  • Pay per run, priced before it starts

Listen / A commentator, then a shoelace

0 / 9 s
Read the transcript

And she's through on goal! She's past the keeper! She's... she's stopped to tie her shoelace. Unbelievable. Absolutely unbelievable scenes here tonight!

Listen / A voicemail about a frying pan

0 / 9 s
Read the transcript

Hey, it's me. I found your scarf in my car. I'm keeping it hostage until you give back my good frying pan. You know which one.

Listen / Night-shift rule one

0 / 9 s
Read the transcript

Rule one of the night shift: if the vending machine ever says your name, you do not answer it. You walk away. You do not buy the chips.

AI text to speech

Chatterbox at a glance

Chatterbox is a text-to-speech model from Resemble AI. It makes speech from your text.

Made by
Resemble AI
Makes
Speech
Starts from
Your text
Text
Up to 1,000 characters
Price per run
$0.034
Updated
October 3, 2026
  1. 01Write the words, pick a voice
  2. 02See the exact price, then press go
  3. 03Keep it in your library, or take it further

Pick the right one

Chatterbox and its siblings

ModelBest forPrice per run
Chatterbox (this page)Open-weight English speech with a dial for how expressive it is.$0.034
Chatterbox MultilingualChatterbox in 23 languages.$0.034

Start with an idea

Three ways to try Chatterbox

Side by side

More voice and sound models on Leap

Why Leap

Why creators make it on Leap

  1. 01

    Every top model, side by side

    175 models from Black Forest Labs, Google, ByteDance, Kuaishou, Alibaba and more, side by side in one studio.

    See the models
  2. 02

    One click, or full control

    Character Studio, effects and recipes write the prompt for you. Or write your own for any model.

    See the tools
  3. 03

    Your work stays yours

    Everything you make stays in your library while your account is active, and you own what you make here.

    See what people make
  4. 04

    One balance for everything

    The studio, the API and your agents spend the same balance, and every run shows its price before it starts.

    How pricing works

Questions

Chatterbox, answered

What is Chatterbox?
Chatterbox is a text-to-speech model from Resemble AI. Open-weight English speech with a dial for how expressive it is. On Leap it runs in one studio beside every other top model, with one account.
How much text can it read in one run?
Up to 1,000 characters. You pay for the characters you send, with the price shown before you press go.
How is it different from Chatterbox Multilingual?
Chatterbox: Open-weight English speech with a dial for how expressive it is. Chatterbox Multilingual: Chatterbox in 23 languages. They all run in the same studio, so you can try one prompt on each.
How much does a run cost?
A run costs $0.034. You see the exact price before you press go, and a run that fails costs nothing.
Is Chatterbox free to try?
No. There is no free credit: you add credit from $5, and your first top-up has no card fee. The cheapest run is $0.034 (a run), so $5 covers 147 of those. You pay per run, in dollars, with no subscription.
Can I use what I make commercially?
Yes. You own what you make on Leap, so you can use it commercially, and we never train AI on it. The people and brands shown in a result can still have rights in it; the Terms say more.
Is there an API?
Yes. Leap's REST API runs it as resemble-ai/chatterbox, at the same price per run as the studio, and agents can call it through Leap's MCP server. The request is at the bottom of this page.
Do I need a Resemble AI account?
No. Leap sends your request to Resemble AI's model and gives you what it makes. One Leap account runs Chatterbox and every other model, in the studio, through the API and from your agents.

Your idea, Chatterbox.

Every run shows its price before it starts, and one that fails costs nothing.

Make it with Chatterbox

For developers

Run Chatterbox from code

API docs
Model ID
resemble-ai/chatterbox
Makes
Voice and sound
Pricing
Per run, quoted first: POST /v1/quotes

Inputs

What the model takes. Leave out anything with a default.

Texttext
Text, up to 1,000 characters, required
Exaggerationsettings.exaggeration
0 to 1. Default: 0.25Exaggeration factor for the generated speech (0.0 = no exaggeration, 1.0 = maximum exaggeration).
Temperaturesettings.temperature
0.05 to 2. Default: 0.7Temperature for generation (higher = more creative).
Cfgsettings.cfg
0.1 to 1. Default: 0.5
Seedseed
0 to 4294967295The same seed and input give the same image.

The request

The same envelope for every model; only the model and its input change. With prefer: wait=60 the answer holds the result when the run finishes within a minute; a longer one is read again by its ID. Agents can call it through the MCP server at app.tryleap.ai/api/mcp.

curl https://api.tryleap.ai/v1/generations \  -H "x-api-key: $LEAP_API_KEY" \  -H "content-type: application/json" \  -H "prefer: wait=60" \  -d '{    "model": "resemble-ai/chatterbox",    "input": {      "text": "And she'\''s through on goal! She'\''s past the keeper! She'\''s... she'\''s stopped to tie her shoelace. Unbelievable. Absolutely unbelievable scenes here tonight!"    }  }' # Video often outlasts the wait and answers "queued" or "running".# Put its "id" in GENERATION_ID and read it again until it is done:# curl https://api.tryleap.ai/v1/generations/$GENERATION_ID -H "x-api-key: $LEAP_API_KEY"