Chatterbox Text To Speech

audio-tts

Whether you're working on memes, videos, games, or AI agents, Chatterbox brings your content to life. Use the first tts from resemble ai.

MODALITIES

audio

Chatterbox Text To Speech (resemble-ai/chatterbox-text-to-speech) is a audio-tts model from Resemble AI. Pricing via AIgateway: $0.025 per 1K chars. Call it via https://api.aigateway.sh/v1/audio/speech — set model="resemble-ai/chatterbox-text-to-speech". Best for: Voiceovers, Audiobooks.

model · resemble-ai/chatterbox-text-to-speech

Use this model

model: resemble-ai/chatterbox-text-to-speech

curl https://api.aigateway.sh/v1/audio/speech \
  -H "Authorization: Bearer $AIGATEWAY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"resemble-ai/chatterbox-text-to-speech","voice":"alloy","input":"Hello, world."}'

curl https://api.aigateway.sh/v1/audio/speech \ -H "Authorization: Bearer $AIGATEWAY_API_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"resemble-ai/chatterbox-text-to-speech","voice":"alloy","input":"Hello world."}'

Capabilities

Strengths

Natural speech synthesis

Use cases

VoiceoversAudiobooks

Pricing

Per 1K chars$0.025

You pay pass-through · 5% applied at credit top-up, not per-call.

See API example →Compare API reference See usage ranking →

Collections

More audio models →More from Resemble AI →Frontier models →Free-tier models →

API schema

Call Chatterbox Text To Speech from any OpenAI SDK

POST https://api.aigateway.sh/v1/audio/speech·Content-Type: application/json·Auth: Bearer sk-aig-...

Request body

json

{
  "model": "resemble-ai/chatterbox-text-to-speech",
  "input": "Hello from AIgateway.",
  "voice": "alloy",
  "format": "mp3",        // mp3 | wav | flac | opus
  "speed": 1.0
}

Response

json

// Binary audio stream in the requested format (mp3 by default).
// Content-Type: audio/mpeg  (or audio/wav, audio/flac, audio/opus)
// Read the response body directly to a file.

Quickstart

from openai import OpenAI
client = OpenAI(base_url="https://api.aigateway.sh/v1", api_key="sk-aig-...")

r = client.audio.speech.create(model="resemble-ai/chatterbox-text-to-speech", voice="alloy", input="Hello world.")
r.stream_to_file("out.mp3")

Errors

401authentication_errorInvalid or missing API key

402insufficient_creditsWallet empty (PAYG only)

404not_foundUnknown model or endpoint

429rate_limit_errorOver per-minute limit — see Retry-After header

500server_errorUpstream provider failed (retryable)

503service_unavailableUpstream saturated (retryable)

Full docs →API reference →OpenAPI spec →llms.txt →

Frequently asked questions

What is Chatterbox Text To Speech?

Whether you're working on memes, videos, games, or AI agents, Chatterbox brings your content to life. Use the first tts from resemble ai. It is a audio-tts model from Resemble AI, accessible via AIgateway's OpenAI-compatible API at slug resemble-ai/chatterbox-text-to-speech.

How much does Chatterbox Text To Speech cost via AIgateway?

Pass-through pricing plus a 5% platform fee applied at top-up. See the pricing panel on this page for exact rates.

How do I call Chatterbox Text To Speech from my code?

Point the OpenAI SDK at https://api.aigateway.sh/v1 with your AIgateway key and set model to "resemble-ai/chatterbox-text-to-speech". The request and response shapes match OpenAI exactly.

Does Chatterbox Text To Speech support streaming, tool calling, vision, and JSON mode?

Streaming — no. Tool calling — no. Vision — no. JSON mode — no. Prompt caching — no.

What are the best use cases for Chatterbox Text To Speech?

Voiceovers, Audiobooks. Key strengths: Natural speech synthesis.

Can I bring my own Resemble AI API key (BYOK)?

Yes. Attach a Resemble AI key in your AIgateway dashboard and this model flips to pass-through — you pay Resemble AI directly and AIgateway waives the 5% platform fee on those calls.