Skip to content

Sonic 3.6 (2026-08-27)

cartesia/sonic-3.6-2026-08-27

Pinned Sonic 3.6 snapshot released August 27, 2026 and currently the build behind the sonic-3.6 alias. Unlike the alias it never changes, which Cartesia recommends for production traffic needing consistent output.

API
curl "$AUDIOLAB_API_URL/v1/audio/speech" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "cartesia/sonic-3.6-2026-08-27",
  "input": "Make every word count.",
  "voice": "auto",
  "response_format": "mp3"
}' --output speech.mp3
Input Price
$38.25 / 1M characters
Output Price
—
Input
Text
Output
Audio

Capabilities

Explore what Sonic 3.6 (2026-08-27) supports, then use the API section for a request tailored to this model.

BatchStream

Model Information

Provider
Cartesia
Product
Text-to-Speech
Release Date
Aug 27, 2026
Data Policy
Not specified
Region
Global
Input
Text
Output
Audio
Provider Documentation

Playground

Try Sonic 3.6 (2026-08-27) by Cartesia. Requests use the selected workspace’s credits and API pricing.

Sonic 3.6 (2026-08-27)Credits —
Sonic 3.6 (2026-08-27)
⌘ / Ctrl + Enter to send

Providers

Compare available endpoints, pricing, and context limits for Sonic 3.6 (2026-08-27).

ProviderContextOutputInput PriceOutput PriceEndpoint
CartesiaNot specifiedAudio$38.25 / 1M characters—
cartesia/sonic-3.6-2026-08-27:cartesia

Prices are catalog rates. Your workspace’s estimate and endpoint pricing determine the final charge.

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max chars2000
Formatswav, mp3

Performance

Status

Current catalog availability. Your workspace’s access is checked separately before a request runs.

Getting Started

Use your workspace API key and the exact model identifier below. Set the API URL to the endpoint shown in your workspace and keep credentials on your server.

API
curl "$AUDIOLAB_API_URL/v1/audio/speech" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "cartesia/sonic-3.6-2026-08-27",
  "input": "Make every word count.",
  "voice": "auto",
  "response_format": "mp3"
}' --output speech.mp3
Read the Endpoint Reference

Request Parameters

Available parameters depend on the provider and request format. The endpoint reference explains accepted values and required fields.

ParameterDetails
modelcartesia/sonic-3.6-2026-08-27 — Required model identifier.

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max chars2000
Formatswav, mp3

Similar Models

Explore more text-to-speech and compare their capabilities.

ModelContextInput PriceOutput Price
Sonic 3.6CartesiaNot specified$38.25 / 1M characters—
Sonic 3.5CartesiaNot specified$38.25 / 1M characters—
Sonic 3.5 (2026-05-04)CartesiaNot specified$38.25 / 1M characters—
Sonic 3 (2026-01-12)CartesiaNot specified$38.25 / 1M characters—
Sonic 3CartesiaNot specified$38.25 / 1M characters—
Sonic LatestCartesiaNot specified$38.25 / 1M characters—
View All Text-to-Speech