{"servers":[{"url":"https://api.modellix.ai/api/v1/xai/grok-imagine-video-extend"}],"post":{"description":"[Core Function] Grok Imagine Video Extend continues an existing video, generating additional footage beyond its end. [Strengths] It excels at seamlessly extending a clip with new prompt-guided motion. [Best For] Highly recommended for: lengthening short clips, continuing a scene, and adding follow-on action. [Limitations] Do NOT use the `duration` parameter expecting it to set the total video length; it only controls the length of the appended segment (2-10 seconds). Input video constraints are enforced by the upstream provider. [Routing] Use this model when the user wants to make a video longer. To restyle or modify an existing video, use Video Edit.","operationId":"grokImagineVideoExtendAsync","requestBody":{"content":{"application/json":{"examples":{"basic":{"summary":"Video and prompt","value":{"prompt":"The camera continues forward into the tunnel","video":"https://example.com/input.mp4"}},"with_duration":{"summary":"With extension length","value":{"duration":8,"prompt":"The dancer finishes the spin and bows","video":"https://example.com/input.mp4"}}},"schema":{"description":"xAI Grok Imagine video extend request. `duration` controls the length of the appended segment, not the total video length.","properties":{"duration":{"default":6,"description":"Length in seconds of the appended segment (not the total video length)","example":8,"maximum":10,"minimum":2,"type":"integer"},"prompt":{"description":"Text description guiding the extended footage","example":"The camera continues forward into the tunnel","minLength":1,"type":"string"},"video":{"description":"Input video URL or base64 data URI","example":"https://example.com/input.mp4","minLength":1,"type":"string"}},"required":["prompt","video"],"type":"object"}}},"required":true},"responses":{"200":{"content":{"application/json":{"example":{"code":0,"data":{"get_result":{"method":"GET","url":"https://api.modellix.ai/api/v1/tasks/task-xai-v2v-002"},"model_id":"xai/grok-imagine-video-extend","status":"pending","task_id":"task-xai-v2v-002"},"message":"success"},"schema":{"properties":{"code":{"description":"Response code, 0 indicates success","example":0,"type":"integer"},"data":{"description":"Detailed data about the submitted asynchronous task.","properties":{"get_result":{"description":"API information to query the task result","properties":{"method":{"example":"GET","type":"string"},"url":{"example":"https://api.modellix.ai/api/v1/tasks/task-abc123","type":"string"}},"type":"object"},"model_id":{"description":"Model ID in `provider/model` format","example":"xai/grok-imagine-video-edit","type":"string"},"status":{"description":"Task status","enum":["pending","processing"],"example":"pending","type":"string"},"task_id":{"description":"Unique task identifier for polling","example":"task-abc123","type":"string"}},"required":["status","task_id","model_id"],"type":"object"},"message":{"description":"Response message","example":"success","type":"string"}},"required":["code","message","data"],"type":"object"}}},"description":"Task submitted successfully"},"400":{"content":{"application/json":{"example":{"code":400,"message":"Invalid parameters: parameter 'video' is required"},"schema":{"properties":{"code":{"example":400,"type":"integer"},"message":{"example":"Invalid parameters: parameter 'video' is required","type":"string"}},"required":["code","message"],"type":"object"}}},"description":"Invalid request parameters"},"401":{"content":{"application/json":{"example":{"code":401,"message":"Authentication failed: invalid API key"},"schema":{"properties":{"code":{"example":400,"type":"integer"},"message":{"example":"Invalid parameters: parameter 'video' is required","type":"string"}},"required":["code","message"],"type":"object"}}},"description":"Unauthorized - Invalid or missing API Key"},"429":{"content":{"application/json":{"example":{"code":429,"message":"Rate limit exceeded: 100 requests per minute, retry after 60 seconds"},"schema":{"properties":{"code":{"example":400,"type":"integer"},"message":{"example":"Invalid parameters: parameter 'video' is required","type":"string"}},"required":["code","message"],"type":"object"}}},"description":"Too many requests - Rate limit exceeded","headers":{"X-RateLimit-Limit":{"description":"Maximum requests per minute","schema":{"example":100,"type":"integer"}},"X-RateLimit-Remaining":{"description":"Remaining quota in current window","schema":{"example":0,"type":"integer"}},"X-RateLimit-Reset":{"description":"Rate limit window reset time (Unix timestamp)","schema":{"example":1704067260,"type":"integer"}}}},"500":{"content":{"application/json":{"example":{"code":500,"message":"Internal server error"},"schema":{"properties":{"code":{"example":400,"type":"integer"},"message":{"example":"Invalid parameters: parameter 'video' is required","type":"string"}},"required":["code","message"],"type":"object"}}},"description":"Internal server error"}},"summary":"Grok Imagine Video Extend","x-mint":{"href":"xai/grok-imagine-video-extend"}}}