API reference · KwaiVGI

kwaivgi/kling-video/lipsync/text-to-video

Integrate this model through SandBase's unified API, with production-ready schemas and examples.

VIDEOAsyncOpen model

Production endpoint

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OpenAI-compatible endpoint with unified authentication and usage tracking.

POSThttps://api.sandbase.ai/v1/run

Model IDkwaivgi/kling-video/lipsync/text-to-video

Input Schema

5 parameters · 0 required · 5 optional

Parameter	Type	Required	Description
`text`	string	Optional	Text content for lip-sync video generation. Max 120 characters. · Max length: 120
`video`	string	Optional	The URL of the video to generate the lip sync for. Supports .mp4/.mov, ≤100MB, 2-60s, 720p/1080p only, width/height 720–1920px. If validation fails, an error is returned.
`voice_id`	string	Optional	Voice ID to use for speech synthesis · Options: 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 genshin_vindi2zhinen_xueshengAOTai_shatanggenshin_klee2genshin_kiraraai_kaiyaoversea_male1ai_chenjiahao_712girlfriend_4_speech02chat1_female_new-3chat_0407_5-1cartoon-boy-07uk_boy1cartoon-girl-01PeppaPig_platformai_huangzhong_712ai_huangyaoshi_712ai_laoguowang_712chengshu_jiejieyou_pingjingcalm_story1uk_man2laopopo_speech02heainainai_speech02reader_en_m-v1commercial_lady_en_f-v1tiyuxi_xueditiexin_nanyougirlfriend_1_speech02girlfriend_2_speech02zhuxi_speech02uk_oldman3dongbeilaotie_speech02chongqingxiaohuo_speech02chuanmeizi_speech02chaoshandashu_speech02ai_taiwan_man2_speech02xianzhanggui_speech02tianjinjiejie_speech02diyinnansang_DB_CN_M_04-v2yizhipiannan-v1guanxiaofang-v2tianmeixuemei-v1daopianyansang-v1mengwa-v1
`voice_speed`	number	Optional	Speech rate for Text to Video generation · Min: 0.8 · Max: 2 · Default: 1
`voice_language`	string	Optional	The voice language corresponding to the Voice ID · Options: zh, en · Default: "en" zhen

Output Schema

Field	Type	Description
`id`	string	Unique identifier for the generation task
`status`	string	Task status: pending, running, completed, failed, timeout
`model`	string	Model used for the generation
`outputs`	array	Array of output items
`outputs[].url`	string	URL of the generated artifact
`outputs[].content_type`	string	MIME type (e.g. image/png, video/mp4)
`error`	object \| null	Error details if failed, null on success
`error.type`	string	Machine-readable error type code
`error.message`	string	Human-readable error description

Async Workflow

This model uses asynchronous execution. Submit a request and poll for the result.

Submit — POST to /v1/run, receive an id
Poll — GET /v1/run/{id} until status is completed, failed, or timeout
Retrieve — Read outputs from the completed response

Code Examples

Ready-to-run snippets

# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
  "model": "kwaivgi/kling-video/lipsync/text-to-video",
  "text": "Mental health is as important as physical health, shaping our emotions, thoughts, and daily interactions.",
  "video": "https://static.sandbase.ai/examples/kwaivgi/kling-video/lipsync/text-to-video/input_video_0.mp4",
  "voice_id": "genshin_klee2",
  "voice_speed": 1,
  "voice_language": "en",
  "prompt": "a beautiful sunset over mountains"
}'

# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
  -H "Authorization: Bearer YOUR_API_KEY"

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