ActionOpenAIUpdated September 2026

How do I convert text to speech with OpenAI?

Short answer: You can generate speech (tts) in OpenAI by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the OpenAI Generate Speech (TTS) action to a workflow, map its 4 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Generate Speech (TTS) in OpenAI — start free All 16 OpenAI actions

Generate Speech (TTS) in OpenAI — start free

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Text input	string	Required	Text
Model model	options	Required	Model. Options: TTS-1, TTS-1 HD
Voice voice	options	Required	Voice. Options: Alloy, Echo, Fable, Onyx, Nova, Shimmer
Format response_format	options	Optional	Format. Options: MP3, Opus, AAC, FLAC

Sample request

{
  "input": "{{trigger.input}}",
  "model": "{{trigger.model}}",
  "voice": "{{trigger.voice}}",
  "response_format": "{{trigger.response_format}}"
}

Returns

{
  "success": true
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Generate Speech (TTS).

Any of these apps can fire this action as part of a workflow.

Google Sheets → OpenAI

2 Google Sheets triggers

HubSpot → OpenAI

18 HubSpot triggers

FAQ

Questions about Generate Speech (TTS).

What does the Generate Speech (TTS) action do in OpenAI?

Converts text to speech audio using OpenAI's TTS models, returning audio bytes (mp3 by default). Supports multiple voices (alloy, echo, fable, onyx, nova, shimmer).

What inputs does Generate Speech (TTS) require?

Required: Text, Model, Voice. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if OpenAI returns an error?

The run history shows the failed step with its input and the error message OpenAI returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Generate Speech (TTS) support batch operations?

Run Generate Speech (TTS) inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within OpenAI's rate limits.

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