Kwaivgi Kling V1 Tts

Playground

Kling V1 TTS creates natural-sounding audio and supports KlingAI image, video, sound effect, virtual model, and custom AI workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Kling V1 TTS is a high-quality text-to-speech model that converts written text into natural, expressive audio. With multiple voice options and adjustable speed control, it produces lifelike speech perfect for voiceovers, content creation, and accessibility applications.

Why It Stands Out

Natural-sounding voices: Generate realistic speech with human-like intonation and expression.
Multiple voice options: Choose from a variety of voice profiles to match your content needs.
Speed control: Adjust speech rate to fit your pacing requirements.
Simple workflow: Just input text, select a voice, and generate audio instantly.
Cost-effective: Flat rate for short texts, scalable pricing for longer content.

Parameters

Parameter	Required	Description
text	Yes	The text you want to convert to speech.
voice_id	Yes	Voice profile to use (e.g., chat1_female_new-3).
speed	No	Speech rate multiplier (default: 1).

How to Use

Enter your text — type or paste the content you want to convert to speech.
Select a voice — choose from available voice profiles.
Adjust speed (optional) — set speech rate (lower = slower, higher = faster).
Click Run and wait for audio generation.
Preview and download the result.

Best Use Cases

Voiceovers — Create narration for videos, presentations, and tutorials.
Content Creation — Generate audio versions of articles, blogs, and scripts.
Advertising — Produce voice content for ads, promos, and announcements.
Accessibility — Convert written content to audio for visually impaired users.
E-learning — Create spoken content for courses and educational materials.
Podcasts & Audiobooks — Generate draft narration or supplementary audio.

Pricing

Text Length	Price
Up to 1000 characters	$0.10
Beyond 1000 characters	$0.10 per 1000 characters

Examples

500 characters → $0.10 (minimum)
1000 characters → $0.10
2500 characters → 2.5 × $0.10 = $0.25
5000 characters → 5 × $0.10 = $0.50

Pro Tips for Best Quality

Use proper punctuation — commas and periods help create natural pauses.
Break long content into shorter segments for better pacing.
Test different voice profiles to find the best match for your content.
Adjust speed based on content type — slower for educational, faster for energetic ads.
Avoid excessive abbreviations or special characters that may affect pronunciation.

Notes

Processing time varies based on text length and current queue load.
Please ensure your content complies with usage guidelines.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "text": "A clear example input",
  "voice_id": "genshin_vindi2",
  "speed": 1
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-v1-tts" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
text	string	Yes	-	-	The text to be converted to speech. the max length is 512 characters.
voice_id	string	Yes	genshin_vindi2	genshin_vindi2, zhinen_xuesheng, AOT, ai_shatang, genshin_klee2, genshin_kirara, ai_kaiya, oversea_male1, ai_chenjiahao_712, girlfriend_4_speech02, chat1_female_new-3, chat_0407_5-1, cartoon-boy-07, uk_boy1, cartoon-girl-01, PeppaPig_platform, ai_huangzhong_712, ai_huangyaoshi_712, ai_laoguowang_712, chengshu_jiejie, you_pingjing, calm_story1, uk_man2, laopopo_speech02, heainainai_speech02, reader_en_m-v1, commercial_lady_en_f-v1, tiyuxi_xuedi, tiexin_nanyou, girlfriend_1_speech02, girlfriend_2_speech02, zhuxi_speech02, uk_oldman3, dongbeilaotie_speech02, chongqingxiaohuo_speech02, chuanmeizi_speech02, chaoshandashu_speech02, ai_taiwan_man2_speech02, xianzhanggui_speech02, tianjinjiejie_speech02, diyinnansang_DB_CN_M_04-v2, yizhipiannan-v1, guanxiaofang-v2, tianmeixuemei-v1, daopianyansang-v1, mengwa-v1	Voice ID for audio generation.
speed	number	No	1	0.8 ~ 2	Speech speed. Range: 0.8-2.0, where 1.0 is normal speed.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Output values, usually URL strings; some models return text strings or structured result objects (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction
data.model	string	Model ID used for the prediction
data.outputs	array<string \| object>	Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model.
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to poll for the prediction result
data.status	string	Status: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Overview