--- title: AI Video API — Text, Image & Lip Sync to Video | ModelsLab description: AI video API for developers: text-to-video, image-to-video, video-to-video and lip sync on one REST endpoint. Kling, Veo, Wan, Seedance. Plans from $21/month. url: https://modelslab.com/ai-video-api canonical: https://modelslab.com/ai-video-api type: website component: Seo/AiVideoApi generated_at: 2026-09-16T12:02:33.783747Z --- Imagen AI Video API for Developers --- Text-to-video, image-to-video, video-to-video, lip sync and motion control on one REST endpoint. Kling, Veo, Wan, Seedance and Minimax behind one key. Video plans from $21/month for 3,250 API calls. [Get API Key — $21/Month](https://modelslab.com/register) [API Documentation](https://docs.modelslab.com) What the AI Video API Covers --- ### One Video API, Every Input Type An AI video API usually means text-to-video. The ModelsLab video API is wider than that: a prompt, a still image, an existing clip or an audio track can each be the input, and the same key covers all of them. Text-to-video and image-to-video generate new footage; video-to-video restyles footage you have; lip sync matches a speaker’s mouth to a new audio track; motion control drives a subject with a reference motion. The model is a parameter, not a separate integration. Open-weight models such as Wan and LTX run on ModelsLab GPUs and are covered by your plan. Third-party models — Kling, Veo, Seedance, Minimax, Runway, Vidu — sit behind the same endpoint and are billed per call from wallet balance, with the price shown on each model page before you send the request. ### Built for Async Video renders take seconds to minutes depending on model, duration and resolution. Short renders return an output URL in the response. Longer ones return an id: poll POST /api/v7/video-fusion/fetch/{id} until `output` is populated, or pass a `webhook` URL and ModelsLab posts the finished video to you. - text-to-video, image-to-video, video-to-video, lip-sync, motion-control - model\_id selects Kling, Veo, Wan, Seedance, Minimax, LTX and more - Prompt, duration, aspect ratio and resolution controls - Async ids with a fetch endpoint and webhook delivery - One API key shared with image, speech and LLM - Video plans from $21/month for 3,250 API calls Five Video Endpoints, One Key --- Everything lives under /api/v7/video-fusion/. Pick the endpoint for the input you have; pick the model with model\_id. | Endpoint | Input | Output | |---|---|---| | POST /api/v7/video-fusion/text-to-video | prompt, model\_id, duration, aspect\_ratio | Generated clip | | POST /api/v7/video-fusion/image-to-video | init\_image, prompt, model\_id, duration | Animated clip from a still | | POST /api/v7/video-fusion/video-to-video | init\_video, prompt, model\_id | Restyled clip | | POST /api/v7/video-fusion/lip-sync | init\_video, init\_audio, model\_id | Clip with matched mouth movement | | POST /api/v7/video-fusion/motion-control | Reference motion + subject image | Subject driven by the motion | | POST /api/v7/video-fusion/fetch/{id} | Request id | Status and output URL | Every endpoint returns an id for long renders; POST /api/v7/video-fusion/fetch/{id} to poll, or pass a webhook URL. AI Video API quick start --- Generate from a prompt, animate an image, poll for the result. ### Text to video (Python) Python ``` 1import requests 2 3response = requests.post( 4 "https://modelslab.com/api/v7/video-fusion/text-to-video", 5 headers={ 6 "Authorization": "Bearer YOUR_MODELSLAB_API_KEY", 7 "Content-Type": "application/json", 8 }, 9 json={ 10 # wan2.2 runs on ModelsLab GPUs — covered by your plan. 11 # Swap to "kling-v3-t2v" or "seedance-2-5-text-to-video" for a premium model. 12 "model_id": "wan2.2", 13 "prompt": "a lighthouse at dusk, waves breaking, slow push-in", 14 "duration": 5, 15 "aspect_ratio": "16:9", 16 }, 17) 18 19print(response.json()) ``` ### Image to video (JavaScript) JavaScript ``` 1const response = await fetch( 2 'https://modelslab.com/api/v7/video-fusion/image-to-video', 3 { 4 method: 'POST', 5 headers: { 6 'Content-Type': 'application/json', 7 Authorization: 'Bearer YOUR_MODELSLAB_API_KEY', 8 }, 9 body: JSON.stringify({ 10 model_id: 'wan2.2', 11 prompt: 'slow orbit around the product, soft studio light', 12 init_image: ['https://example.com/product-shot.jpg'], 13 duration: 5, 14 }), 15 }, 16); 17 18const { id, output } = await response.json(); 19console.log(output?.[0] ?? `queued as ${id}`); ``` ### Poll for a finished render (cURL) bash ``` 1# The fetch endpoint takes the request id as the last path segment. 2curl -X POST 'https://modelslab.com/api/v7/video-fusion/fetch/REQUEST_ID' \ 3 -H 'Authorization: Bearer YOUR_MODELSLAB_API_KEY' \ 4 -H 'Content-Type: application/json' 5 6# {"status":"success","output":["https://cdn.modelslab.com/.../clip.mp4"]} ``` What Video Plans Cost --- Plans are billed per API call. Whether a call also draws wallet balance depends on the model. | Plan | Price / Month | API Calls | Third-party models | |---|---|---|---| | Basic | $21 | 3,250 | Per call from wallet | | Standard | $47 | 10,000 | Per call from wallet | | Unlimited Premium | $199 | Unlimited on self-hosted models | Per call from wallet | ModelsLab video plan pricing, September 2026. Unlimited applies to the open-weight video endpoints ModelsLab self-hosts. Third-party video models (Kling, Veo, Seedance, Minimax, Runway, Vidu and others) are billed per call from wallet balance on any plan. Ship Video in 3 Steps --- From API key to a hosted MP4. STEP 01 STEP 01 ### Step 1: Get Your API Key Create a ModelsLab account, subscribe to a video plan from $21/month for 3,250 API calls, and copy your key from the dashboard. STEP 02 STEP 02 ### Step 2: Pick the Endpoint and the Model POST to text-to-video, image-to-video, video-to-video or lip-sync with a model\_id. Open-weight models are covered by your plan; Kling, Veo and Seedance are billed per call from wallet balance. STEP 03 STEP 03 ### Step 3: Fetch the Render Short renders return an output URL. Longer ones return an id — poll /api/v7/video-fusion/fetch/{id} until output is populated, or pass a webhook URL. [Get API Key ](https://modelslab.com/register) Video API guides --- [### Text to Video API Endpoint reference for generating video from a prompt with Kling, Wan, Seedance and Veo.](https://modelslab.com/text-to-video-api) [### Image to Video API Animate a still image into a clip through one REST call.](https://modelslab.com/image-to-video-api) [### Lip Sync API Match mouth movement to a new audio track for dubbing and talking-head video.](/lip-sync-api) [### Seedance API Seedance 2.5, 2.0 and 1.5 Pro without a ByteDance Ark account.](/seedance-api) [### Cheapest AI Video API What video generation actually costs across plans and models.](https://modelslab.com/cheapest-ai-video-api) [### Best AI Video API 2026 Veo, Kling and Seedance compared by quality, duration and price.](https://modelslab.com/best-ai-video-api-2026) ### Why We Do Not Advertise “Unlimited Video” The $199/month plan is unlimited on the open-weight video models ModelsLab self-hosts. It does not cover the third-party models, because Kling, Veo, Seedance and the rest bill ModelsLab per call, and we pass that through rather than hide it. If your pipeline runs on open-weight video, the unlimited plan removes per-call cost entirely; if it runs mostly on premium models, a metered plan plus wallet balance costs less. ### Routing by Job Draft, background and bulk renders belong on open-weight models covered by your plan. Premium third-party models earn their per-call price on the clips a customer actually sees. Both run on the same endpoint and key, so routing is a change to model\_id and nothing else. Why Developers Build Video on ModelsLab --- Key advantages that set us apart Text, image, video and audio inputs on one API Kling, Veo, Wan, Seedance, Minimax, LTX by model\_id Async ids, fetch endpoint and webhook delivery Open-weight models covered by your plan Third-party prices shown per model, not hidden No cold starts on self-hosted models Video plans from $21/month for 3,250 calls One API key across image, video, speech and LLM Our Popular Use Cases What teams ship with the AI video API: Product Video at ScaleLocalised VideoSocial Ad VariationsStoryboards and AnimaticsCreator ToolsModel Evaluation Animate product stills into short loops for listings and ads with image-to-video, one request per SKU. ![Product Video at Scale](https://imagedelivery.net/PP4qZJxMlvGLHJQBm3ErNg/0fbacb1a-6e34-4254-0a9d-5e75178cf200/768) AI Video API FAQ --- Text-to-video, image-to-video, video-to-video, lip sync and motion control, each as its own endpoint under /api/v7/video-fusion/. One API key and one plan cover all of them. Open-weight models ModelsLab self-hosts such as Wan and LTX, and third-party models including Kling, Veo, Seedance, Minimax, Runway and Vidu. You pick the model with model\_id; the endpoint stays the same. Video plans start at $21/month for 3,250 API calls, with Standard at $47/month for 10,000 calls. Generating on the open-weight models ModelsLab self-hosts costs one call from your plan; third-party models are billed per call from wallet balance on top. No. It is unlimited on the open-weight video models ModelsLab self-hosts. The third-party endpoints (Kling, Veo, Seedance, Minimax and others) are billed per call from wallet balance on every plan, because those providers bill per call. Short renders return an output URL in the response. Longer renders return an id; POST /api/v7/video-fusion/fetch/{id} until output is populated, or pass a webhook URL and ModelsLab posts the result to you. ModelsLab is a paid service. Video plans start at $21/month for 3,250 API calls. Creating an account is free, but generating video requires an active plan. Yes. Image, video, speech and LLM generation share one API key. Each product category has its own plan, so a video plan covers video calls and an image plan covers image calls. Your Data is Secure: GDPR Compliant AI Services --- ![ModelsLab GDPR Compliance Certification Badge](https://imagedelivery.net/PP4qZJxMlvGLHJQBm3ErNg/28133112-07fe-4c1c-44eb-36948d51ae00/768) ### Start Creating Amazing AI Videos in Minutes Choose plan as per your needs, cancel anytime. Coming Soon --- We are making some changes to our pricing, please check back later. Get Expert Support in Seconds We're Here to Help. --- Want to know more? You can email us anytime at Chat with support[View Docs](https://docs.modelslab.com) Text-to-video, image-to-video, video-to-video, lip sync and motion control, each as its own endpoint under /api/v7/video-fusion/. One API key and one plan cover all of them. Open-weight models ModelsLab self-hosts such as Wan and LTX, and third-party models including Kling, Veo, Seedance, Minimax, Runway and Vidu. You pick the model with `model_id`; the endpoint stays the same. Video plans start at $21/month for 3,250 API calls, with Standard at $47/month for 10,000 calls. Generating on the open-weight models ModelsLab self-hosts costs one call from your plan; third-party models are billed per call from wallet balance on top. No. It is unlimited on the open-weight video models ModelsLab self-hosts. The third-party endpoints (Kling, Veo, Seedance, Minimax and others) are billed per call from wallet balance on every plan, because those providers bill per call. Short renders return an output URL in the response. Longer renders return an id; POST /api/v7/video-fusion/fetch/{id} until `output` is populated, or pass a `webhook` URL and ModelsLab posts the result to you. ModelsLab is a paid service. Video plans start at $21/month for 3,250 API calls. Creating an account is free, but generating video requires an active plan. Yes. Image, video, speech and LLM generation share one API key. Each product category has its own plan, so a video plan covers video calls and an image plan covers image calls. Explore Our Other Solutions --- Unlock your creative potential and scale your business with ModelsLab's comprehensive suite of AI-powered solutions. [Imagen ### AI Image Generation & Tools Generate, edit, upscale, and transform images with state-of-the-art AI models. Explore Imagen](https://modelslab.com/imagen) [Audio Gen ### AI Audio Generation Text-to-speech, voice cloning, music generation, and audio processing APIs. Explore Audio Gen](https://modelslab.com/audio-gen) [Chat ### Engage Seamlessly with LLM Access powerful language models for chatbots, content generation, and AI assistants. Explore Chat](https://modelslab.com/custom-llm) [3D Verse ### Create Stunning 3D Models Transform images and text into 3D models with advanced AI-powered generation. Explore 3D Verse](https://modelslab.com/text-to-3d) Plugins Explore Plugins for Pro --- Our plugins are designed to work with the most popular content creation software. [Explore Plugins](https://modelslab.com/pro#plugins) [Learn More](https://modelslab.com/pro) API Build Apps with ModelsLab ML API --- Use our API to build apps, generate AI art, create videos, and produce audio with ease. [API Documentation](https://docs.modelslab.com) [Playground](https://modelslab.com/models) ## Frequently Asked Questions ### What does the AI video API cover? Text-to-video, image-to-video, video-to-video, lip sync and motion control, each as its own endpoint under /api/v7/video-fusion/. One API key and one plan cover all of them. ### Which video models are available? Open-weight models ModelsLab self-hosts such as Wan and LTX, and third-party models including Kling, Veo, Seedance, Minimax, Runway and Vidu. You pick the model with `model_id`; the endpoint stays the same. ### How much does the AI video API cost? Video plans start at $21/month for 3,250 API calls, with Standard at $47/month for 10,000 calls. Generating on the open-weight models ModelsLab self-hosts costs one call from your plan; third-party models are billed per call from wallet balance on top. ### Is the $199 unlimited plan unlimited for every model? No. It is unlimited on the open-weight video models ModelsLab self-hosts. The third-party endpoints (Kling, Veo, Seedance, Minimax and others) are billed per call from wallet balance on every plan, because those providers bill per call. ### How do I get the finished video? Short renders return an output URL in the response. Longer renders return an id; POST /api/v7/video-fusion/fetch/{id} until `output` is populated, or pass a `webhook` URL and ModelsLab posts the result to you. ### Is there a free AI video API? ModelsLab is a paid service. Video plans start at $21/month for 3,250 API calls. Creating an account is free, but generating video requires an active plan. ### Can I use the same key for images and speech? Yes. Image, video, speech and LLM generation share one API key. Each product category has its own plan, so a video plan covers video calls and an image plan covers image calls. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-09-16*