# Dia text to speech fal AI

Needs text.

Dia, served by fal.ai. $0.04 per 1000 characters Text is limited to 5000 characters; the exact receipt determines the final charge. Asynchronous: returns a request_id; poll fal/status and fetch fal/result with model "fal-ai/dia-tts" and that request_id. The exact endpoint/request billing receipt is required before settlement.

- Tool ID: `fal/fal-ai-dia-tts`
- Name in the catalog: Dia, text to speech
- Provider: [fal.ai](/providers/fal.md)
- Capability: [AI audio](/tools/audio-generation.md)
- Price: $0.04 per 1,000 characters
- Authentication: an authorised Agentik workspace is required for execution, including zero-price tools.

## Pricing contract

The provider’s price, with no markup. Billed for measured usage.


```json
{
  "model": "per_unit",
  "amountUsd": 0.04,
  "unitsField": "text",
  "unitsMeasure": "chars",
  "unitsPer": 1000,
  "fractional": true,
  "maxUnits": 10
}
```

Pricing source: [https://fal.ai/models/fal-ai/dia-tts/llms.txt](https://fal.ai/models/fal-ai/dia-tts/llms.txt). $0.04 per 1000 characters Text is limited to 5000 characters; the exact receipt determines the final charge..

Price verification date: 2026-11-03.

## Complete input schema


```json
{
  "type": "object",
  "properties": {
    "text": {
      "title": "Text",
      "type": "string",
      "description": "The text to be converted to speech.",
      "maxLength": 5000,
      "minLength": 1
    }
  },
  "required": [
    "text"
  ],
  "additionalProperties": false
}
```

## Published example

This is the provider tool’s published example. Replace example values with the user’s requested inputs, respecting the schema; do not execute an example merely to test a connection.


```json
{
  "tool_id": "fal/fal-ai-dia-tts",
  "input": {
    "text": "[S1] Dia is an open weights text to dialogue model. [S2] You get full control over scripts and voices. [S1] Wow. Amazing. (laughs) [S2] Try it now on Fal."
  }
}
```

## Execute and retrieve

Inspect again before execution, explain the price and obtain the required authority. Use MCP run_tool or POST /v1/run with this tool ID, valid input and an idempotency key. Save the returned run ID and follow the actual state. If Agentik answers that the tool is temporarily unavailable, do not retry it blindly; use discovery to propose an alternative.

This tool uses deferred settlement. Follow its returned task/run instructions; preserve the existing reservation until the result is reconciled.

A partial or uncertain result can still have consumed provider resources. Consult [billing](/docs/billing.md), [idempotency](/docs/idempotency.md) and [asynchronous results](/docs/async.md).

[Provider documentation](https://fal.ai/models/fal-ai/dia-tts)

[REST inspection](https://api.agentik.cc/v1/tools/fal/fal-ai-dia-tts) · [OpenAPI](/openapi.json) · [Connection guide](/connect.md)

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[HTML page](/providers/fal/fal-ai-dia-tts) · [Agent index](/llms.txt)