Kling V2.6 Create Voice | AI Voice Conversion API

Kwaivgi Kling v2.6 Create Voice

Kling v2.6 Create Voice is a lightweight helper endpoint for creating a reusable voice profile from an audio sample. The output is typically a voice identifier you can plug into Kling v2.6 “voice control” workflows (for example, generating dialogue in a video using your custom voice).

Use this when you want consistent narration or character speech across multiple Kling v2.6 generations, without re-uploading the same reference audio every time.

Key capabilities

Create a reusable voice profile from audio Upload or link to a voice sample and get back a voice reference you can re-use across runs.
Designed for Kling v2.6 voice control workflows The resulting voice can be used to drive speech generation in Kling v2.6 video endpoints that support custom voice IDs.
Simple, single-input interface Minimal setup: provide a clean reference clip and you’re ready to create a voice.
Supports common audio upload patterns Typically works with either a public URL or an uploaded audio file, depending on your integration.
Better consistency across scenes Re-using the same created voice helps keep a stable vocal identity across multiple generations.

Parameters and how to use

voice_url: (required) A URL (or uploaded file reference) pointing to the audio sample used to create the voice.

Media (Audio)

Provide a single voice sample that’s easy to learn from:

Use a clean, single-speaker clip (no background music, no overlapping voices).
Aim for consistent volume and minimal reverb/echo.
If you want a specific style (e.g., calm narrator, energetic host), choose a sample that clearly matches that delivery.

After you finish configuring the parameters, click Run, preview the result, and iterate if needed.

Pricing

$0.035 per run

Notes

How to write prompts that use a Voice ID

When you use Kling v2.6 video endpoints that support voice-controlled generation, you can reference created voices directly inside the text prompt.

Prompt length limit: your positive prompt cannot exceed 2500 characters.
Voice tag syntax: use <<<voice_1>>> (or <<<voice_2>>>) to specify which voice should speak.
Voice order must match voice_list: <<<voice_1>>> refers to the first voice in the voice_list parameter; <<<voice_2>>> refers to the second voice.
Up to 2 tones per task: a video generation task can reference at most 2 tones.
Tone requires sound=on: when specifying a tone, the sound parameter must be on.
Keep grammar simple: simpler sentence structure improves reliability. Example: The man <<<voice_1>>> said, “Hello.”
Billing behavior: if voice_list is not empty and the prompt references a voice tag (e.g., <<<voice_1>>>), the task is billed using the “with voice generation” metric.
Capability varies by mode/version: voice support differs across Kling model versions and video modes; check the current Capability Map for the endpoint you’re using.

Safety and permission

Consent matters: only create voices from audio you own or have explicit permission to use.
If the created voice sounds “off,” the fastest fix is usually a cleaner reference clip (single speaker, less noise, fewer artifacts).
Keep voice creation and voice usage consistent: once you have a voice ID, re-use it rather than re-creating new voices for the same speaker.

Related Models

Kling v2.6 Pro (Text-to-Video) – Use created voice IDs to generate videos with dialogue, ambience, and SFX.
Kling v2.6 Pro (Image-to-Video) – Animate a still image into a video, optionally with voice-controlled speech.
Kling Text-to-Audio – Generate sound effects and audio from text prompts.
Kling Video-to-Audio – Generate or extract matching audio for an input video.

Kling v2.6 Create Voice API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/kwaivgi/kling-v2.6/create-voice with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Kling v2.6 Create Voice below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-v2.6/create-voice" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "audio": "https://example.com/your-audio.mp3"
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("kwaivgi/kling-v2.6/create-voice", {
        "audio": "https://example.com/your-audio.mp3"
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "kwaivgi/kling-v2.6/create-voice",
    {
    "audio": "https://example.com/your-audio.mp3"
}
)

print(output["outputs"][0])  # → URL of the generated output

Kling v2.6 Create Voice API — Frequently asked questions

What is the Kling v2.6 Create Voice API?

Kling v2.6 Create Voice is a Kuaishou model for AI inference, exposed as a REST API on WaveSpeedAI. Kling 2.6 Create Voice is a model can generate custom voice. Upload an audio file to create a custom voice that can be used with the voice control feature in V2.6 video generation. The audio should be clean, noise-free, with a single voice, and duration between 5-30 seconds. Built for stable production use with a ready-to-use REST API, no cold starts, and predictable pricing. You can call it programmatically or try it from the playground above.

How do I call the Kling v2.6 Create Voice API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/kwaivgi/kwaivgi-kling-v2.6-create-voice.

How much does Kling v2.6 Create Voice cost per run?

Kling v2.6 Create Voice starts at $0.035 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Kling v2.6 Create Voice accept?

Key inputs: `audio`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/kwaivgi/kwaivgi-kling-v2.6-create-voice.

How long does Kling v2.6 Create Voice take to generate?

Average end-to-end generation time on WaveSpeedAI is around 7 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Kling v2.6 Create Voice outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (Kuaishou). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

ExamplesView all

Related Models

README

Kwaivgi Kling v2.6 Create Voice

Key capabilities

Parameters and how to use

Media (Audio)

Pricing

Notes

How to write prompts that use a Voice ID

Safety and permission

Related Models

Kling v2.6 Create Voice API — Quick start

Kling v2.6 Create Voice API — Frequently asked questions