List Models | SpeechifyAI API

List the text-to-speech models available for synthesis. Drive a model picker from this response, then pass a model id as the model parameter to POST /v1/audio/speech or /v1/audio/stream. The response marks the default model (used when a request omits model). Returns the full set in a single response: the model catalog is static platform reference data, so it is intentionally not paginated.

List the text-to-speech models available for synthesis. Drive a model picker from this response, then pass a model `id` as the `model` parameter to POST /v1/audio/speech or /v1/audio/stream. The response marks the default model (used when a request omits `model`). Returns the full set in a single response: the model catalog is static platform reference data, so it is intentionally not paginated.

Authentication

AuthorizationBearer

Enter your API key with the Bearer prefix, e.g. ‘Bearer sk_…’.

Response headers

X-Request-IDstring

Unique identifier for this request, present on every response (2xx and non-2xx alike). If the caller sends an X-Request-ID request header the server echoes it back (sanitized and length-capped) so one logical request can be traced end-to-end; otherwise the server generates a fresh value. Log it on every response and quote it in support requests - it is the stable handle that ties your observation to Speechify’s server-side logs, and it matches the request_id field in the error envelope.

Unique identifier for this request, present on every response (2xx and non-2xx alike). If the caller sends an `X-Request-ID` request header the server echoes it back (sanitized and length-capped) so one logical request can be traced end-to-end; otherwise the server generates a fresh value. Log it on every response and quote it in support requests - it is the stable handle that ties your observation to Speechify's server-side logs, and it matches the `request_id` field in the error envelope.

RateLimit-Limitinteger

Request-rate budget: the maximum number of requests in the current window (the bucket capacity). The IETF-draft un-prefixed name; the legacy alias X-RateLimit-Limit carries the same value. Rides every response.

RateLimit-Remaininginteger

Request-rate budget: requests left in the current window. Legacy alias: X-RateLimit-Remaining.

RateLimit-Resetinteger

Request-rate budget: integer delta-seconds until the window fully refills (same unit as Retry-After). Legacy alias: X-RateLimit-Reset.

Response

The available text-to-speech models.

modelslist of objects

Errors

400

Bad Request Error

401

Unauthorized Error

403

Forbidden Error

429

Too Many Requests Error

500

Internal Server Error

1	{
2	"models": [
3	{
4	"id": "simba-english",
5	"name": "Simba English",
6	"default": true,
7	"recommended": false,
8	"description": "English-only synthesis; the model used when a request omits `model`.",
9	"languages": [
10	"en"
11	]
12	},
13	{
14	"id": "simba-3.2",
15	"name": "Simba 3.2",
16	"default": false,
17	"recommended": true,
18	"description": "Streaming-native model with the lowest time-to-first-byte and richest expressivity, English only today.",
19	"languages": [
20	"en"
21	]
22	}
23	]
24	}

$	curl https://api.speechify.ai/v1/audio/models \
>	-H "Authorization: Bearer <token>"

Authentication

Headers

Response headers

Response

Errors