Kling 3.0 API
Kling 3.0 video model with text-to-video, image-to-video, and custom element creation. Supports 3-15 second videos with per-second billing.
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Billing Rules
- •Price shown is per second
- •Duration range: 3-15 seconds
- •Total = price/second × duration
Pricing
| Model | Mode | Quality | Sound | Price |
|---|---|---|---|---|
| Kling 3.0 Text to Video | Video Generation | 720p | Off | Popular $0.0750/ second(5.4 Credits) |
| Kling 3.0 Text to Video | Video Generation | 720p | On | $0.1125/ second(8.1 Credits) |
| Kling 3.0 Text to Video | Video Generation | 1080p | Off | $0.1000/ second(7.1982 Credits) |
| Kling 3.0 Text to Video | Video Generation | 1080p | On | $0.1500/ second(10.8 Credits) |
If it's down, we automatically use the next cheapest available—ensuring 99.9% uptime at the best possible price.
面向视频创作的 Kling 3.0 API
使用 Kling 3.0 模型进行构建。从文本或图像生成视频——通过一个统一的 API 完成,支持 3-15 秒输出。

利用 Kling 3.0 API 可以构建什么?
为什么团队选择 Kling 3.0
Kling 3.0 在单一模型家族中提供文生视频和图生视频两种模式,价格有竞争力。
两种专业模式
文本和图像模式覆盖核心视频创作工作流。
3.0 架构
基于 Kling 3.0 基础架构,提供高质量视频生成。
灵活的 3-15 秒输出
生成 3 到 15 秒的视频,按秒计费。
如何集成 Kling 3.0 API
从输入到生产就绪视频的三个步骤。
选择模式
根据您的工作流需求,选择文生视频或图生视频模式。
提交生成任务
发送带有提示词或图像的请求。跟踪异步任务直到结果就绪。
评审与迭代
下载结果,比较变体,并复用相同的结构在不同营销活动中快速迭代。
Kling 3.0 API 核心能力
视频 AI,两种专业模式
文生视频生成
纯粹从文本描述生成视频。Kling 3.0 解读自然语言提示,无需任何视觉输入即可生成动态视频内容。
图生视频转换
将静态图像转换为动态视频。提供参考图像,让 Kling 3.0 以自然的运动和场景动态将其动画化。
多镜头支持
创建复杂的多镜头视频,支持自定义场景切换、每镜头提示词和时长控制,满足专业视频制作需求。
音效
为视频添加 AI 生成的音效。根据需要开启或关闭音效,音频生成定价透明。
按秒计费
按秒计费,只为生成的内容付费。视频范围从 3 到 15 秒,让团队对每个项目都有精确的成本控制。
720p 和 1080p 质量
在标准 720p 和高质量 1080p 输出分辨率之间选择,为特定用例平衡质量和成本。
常见问题
Everything you need to know about the product and billing.
API Reference
Select endpoint
Authentication
All APIs require Bearer Token authentication.
Authorization:
Bearer YOUR_API_KEY/v1/videos/generationsCreate Video
Kling 3.0 Text to Video (kling-v3-text-to-video) generates videos from text prompts using the 3.0 model. Supports single-shot and multi-shot modes with optional sound effects.
Asynchronous processing mode, use the returned task ID to query status.
Generated video links are valid for 24 hours, please save them promptly.
Important Notes
- Text-to-video mode: no image input required.
- Video duration: 3-15 seconds, billed per second.
- Pricing varies by quality and sound: 720p+off = 1.0x, 720p+on = 1.5x, 1080p+off = 1.333x, 1080p+on = 2.0x.
Request Parameters
modelstringRequiredDefault: kling-v3-text-to-videoVideo generation model name.
kling-v3-text-to-videopromptstringRequiredText prompt describing what kind of video to generate. When multi_shot=true and shot_type=customize, this can be empty (use multi_prompt instead).
Notes
- Max 2500 characters
A golden retriever running through a sunlit meadow, cinematic slow motion.durationintegerOptionalDefault: 5Specifies the generated video duration in seconds.
Notes
- Range: 3-15 seconds (integer)
- Base price: 5.4 credits per second
- Minimum billing: 3 seconds
5aspect_ratiostringOptionalVideo aspect ratio.
| Value | Description |
|---|---|
| 16:9 | Landscape video |
| 9:16 | Portrait video |
| 1:1 | Square video |
16:9qualitystringOptionalDefault: 720pVideo resolution quality. Affects billing multiplier.
| Value | Description |
|---|---|
| 720p | Standard 720P (1.0x base) |
| 1080p | High quality 1080P (1.333x base) |
720psoundstringOptionalDefault: offSound effect control. Affects billing multiplier.
| Value | Description |
|---|---|
| off | No sound effects (1.0x) |
| on | Generate sound effects (1.5x) |
Notes
- Combined multiplier: 720p+off=1.0x, 720p+on=1.5x, 1080p+off=1.333x, 1080p+on=2.0x
offcallback_urlstringOptionalHTTPS callback address after task completion.
Notes
- Triggered on completion, failure, or cancellation
- HTTPS only, no internal IPs
- Max length: 2048 chars
- Timeout: 10s, Max 3 retries
https://your-domain.com/webhooks/video-task-completedmodel_params.multi_shotbooleanOptionalDefault: falseEnable multi-shot mode for generating videos with multiple camera angles or scenes.
Notes
- When enabled, shot_type and multi_prompt become relevant
truemodel_params.shot_typestringOptionalShot type for multi-shot mode. Required when multi_shot is true.
| Value | Description |
|---|---|
| customize | Custom per-shot prompts and durations |
| intelligence | AI auto-plans shots based on prompt |
Notes
- Only effective when multi_shot=true
customizemodel_params.multi_promptarrayOptionalPer-shot prompt array. Required when multi_shot=true and shot_type=customize. Each item defines a shot segment.
Notes
- Format: [{index: number, prompt: string, duration: string}, ...]
- Max 6 shots
- Total duration of all shots should match the requested duration
- When used, top-level prompt can be empty
[{"index": 1, "prompt": "A person on a hilltop", "duration": "5"}, {"index": 2, "prompt": "Camera pulls back", "duration": "5"}]negative_promptstringOptionalNegative prompt describing what you don't want in the video.
Notes
- Max 2500 characters
- Optional
blurry, watermark, text, low qualitymodel_params.watermark_infoobjectOptionalWatermark configuration for the generated video.
Notes
- Format: {enabled: boolean}
{"enabled": false}

