Text to video
Turn a complete shot brief into a generated video sequence.
All API models
Kling AI/ VideoPlanned
Kling AI/ VideoPlannedKling 4.0 API
kling-v4Generate 3–30 second videos with stereo audio. First/last frames, keyframes, multimodal references, video editing and extension.
- Text to video
- Image to video
- Multi-reference
- First / last frame
This route is published for integration planning and is not accepting requests yet.
Playground
Configure a request, inspect the exact JSON, then run it with your account.
Playground opens when this route becomes available.
Response
The API response will appear here.
OUTPUT GALLERY
Kling 4.0 in action
Real Kling 4.0 outputs across text-to-image, multilingual text rendering, natural-language editing, and multi-reference composition.
API PRICING
API pricing
Compare the complete API billing table for this route. Token models separate input, output, cache-read, cache-write, and long-context rates; media models vary by configuration.
Pricing coming soon
CAPABILITIES
What this route supports
Use one stable PixMind model ID while keeping provider-specific setup out of your application.
Image to video
Animate a supplied image while preserving its subject and visual direction.
Multi-reference
Carry subjects, products, or visual direction across reference-led outputs.
First / last frame
Control a transition by defining both the opening and closing composition.
Native audio
Generate an audio-capable result on supported video routes.
TECHNICAL SPECS
Supported parameters
Inputs, supported configurations, and request parameters for the Kling 4.0 API.
- Durée
- 3–30s
- Niveau de sortie
- 720p / 1080p
- Première et dernière images
- Définissez l’image d’ouverture et une image de fermeture facultative. L'API accepte également jusqu'à huit images clés intermédiaires.
- Références multimodales
- Utilisez jusqu'à dix images et cinq vidéos, avec au maximum trente secondes de vidéo de référence. L'API accepte également trois clips audio de 5 à 30 secondes ; toutes les références totalisent au maximum quinze actifs.
MODEL WORKFLOWS
What to build with Kling 4.0
Choose a task that matches the live route capabilities, then adapt one of these prompt starters.
Best-fit tasks
- Turn a complete shot brief into a generated video sequence.
- Animate a supplied image while preserving its subject and visual direction.
- Carry subjects, products, or visual direction across reference-led outputs.
- Control a transition by defining both the opening and closing composition.
Prompt starters
Replace the bracketsStarter
Use the reference images to keep [person/product] consistent. Create a coordinated [number]-image campaign across [scenes] in one visual direction.
Starter
Create one [duration]-second shot of [subject] in [setting]. The subject [action]. Camera: [movement and framing]. Lighting: [direction and mood]. Keep motion physically coherent and the shot continuous.
Starter
Animate the supplied image into a [duration]-second shot. Preserve [subject details]. Add [subject motion] and [camera motion]. Keep the original composition, lighting, and visual identity stable.
Starter
Start exactly from the first frame and end on the supplied last frame. Build one continuous transition where [subject or camera action] connects both compositions without cuts.
MODEL SELECTION
Choose Kling 4.0 when the job fits
Compare nearby live routes by task, supported capability, and current entry price before you lock a model ID into production.
| Model | Best for | Key capabilities | Entry price | Availability | Action |
|---|---|---|---|---|---|
Kling 4.0 Kling AI · current page | Turn a complete shot brief into a generated video sequence. | Text to video · Image to video · Multi-reference | Pricing coming soon | Planned | Selected |
Kling 3.0 Turbo Kling AI | Turn a complete shot brief into a generated video sequence. | Text to video · Image to video | $0.13 / sec | Available | View route |
Happy Horse 1.0 MiniMax | Turn a complete shot brief into a generated video sequence. | Text to video · Image to video · Multi-reference | $0.19 / sec | Available | View route |
Happy Horse 1.1 HappyHorse | Turn a complete shot brief into a generated video sequence. | Text to video · Image to video | $0.24 / sec | Available | View route |
Capabilities and starting prices are a current PixMind route snapshot. The accepted request contains the final configuration and billing quote.
GET STARTED
From playground to production
Create a scoped key
Create an API key with the permissions required by this model.
Send the request
Use the model ID and endpoint shown above from your backend service.
Track the task
Read language-model output from the response. For image and video requests, use the returned task ID to retrieve the result.
FAQ
Kling 4.0 API questions
Quel ID de modèle et point de terminaison d'API dois-je utiliser ?+
Soumettez kling-v4 au POST /api-platform/v1/generations. Interrogez le PixMind taskId renvoyé dans GET /api-platform/v1/tasks/{taskId}.
Comment choisir le mode référence, édition ou extension ?+
Définissez omni_reference_task_type pour référencer, modifier ou étendre. L'édition et l'extension nécessitent une vidéo d'entrée ; l'extension n'accepte pas aspect_ratio ou audio_setting.
Que signifie la tarification des entrées 720p ?+
Il s'agit du tarif de 0,105 USD par seconde facturable pour le montage vidéo et les références vidéo. Un montage de 3,04 secondes sans durée est facturé pour 4 + 4 = 8 secondes.
Quels paramètres Kling 4.0 sont rejetés ?+
L'itinéraire rejette mode=std/pro/4k, negative_prompt, watermark=true et audio=false. La validation et l'analyse des médias ont lieu avant la facturation ; les générations ratées sont entièrement remboursées.
What model ID should I use for the Kling 4.0 API?+
Use kling-v4 in the model field. This is the stable PixMind route identifier shown in the playground request JSON.
Which endpoint does the Kling 4.0 API use?+
Send POST requests to /v1/generations. Keep your API key on your server and pass it as a Bearer token.
Is the playground using a real API request?+
Yes. When you click Run model, PixMind forwards the displayed payload with the API key you entered. A successful request may create a paid task.
Does PixMind save the API key entered here?+
No. The playground keeps the key only in component memory and sends it for the current request; it is not written to browser storage.
Is API pricing the same as PixMind Studio pricing?+
No. API usage resolves through the apiPlatform pricing role and a separate pay-as-you-go ledger. Studio pricing includes the creation interface and product workflow services.
Why can the final price differ from the starting price?+
The entry price reflects the configuration displayed on this page. Resolution, duration, quality, audio, references, and output count can affect the final task price.
RELATED MODELS
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Happy Horse 1.1
Happy Horse 1.1, an upgraded route for reference-led character performance video.
View APISTART WITH THE CONTROL PLANE
Turn your first Kling 4.0 prompt into a real API request
Test the exact payload in the playground, then create a scoped key and move the same model ID into your application.