{"servers":[{"url":"https://api.modellix.ai/api/v1/google/veo-3-fast-t2v"}],"post":{"description":"[Core Function] Veo 3 Fast T2V is an older generation text-to-video model. [Strengths] Provided strong physical consistency and 1080p generation capabilities before the 3.1 update. Maintained for backward compatibility. [Best For] Existing legacy integrations that require the specific speed/cost tradeoff of this older model. [Limitations] Do NOT use this for new creations. It is a legacy model maintained for backward compatibility. [Routing] Only use if explicitly requested; otherwise use Veo 3.1 T2V.","operationId":"veo3FastT2VAsync","requestBody":{"content":{"application/json":{"examples":{"landscape":{"summary":"Landscape with duration","value":{"aspectRatio":"16:9","duration":"4","prompt":"Abstract flowing liquid metal with colorful reflections"}},"urban":{"summary":"Urban scene","value":{"prompt":"Busy city intersection at rush hour with people crossing, warm afternoon light"}}},"schema":{"description":"Veo 3 and Veo 3 Fast text-to-video request. Supports `prompt`, `negativePrompt`, `aspectRatio`, `duration`, `resolution` (720p/1080p), and `personGeneration`.","properties":{"aspectRatio":{"default":"16:9","description":"Video aspect ratio","enum":["16:9","9:16"],"example":"16:9","type":"string"},"duration":{"description":"Video duration in seconds (string type)","enum":["4","6","8"],"example":"6","type":"string"},"negativePrompt":{"description":"Text describing what to avoid in the generated video.","example":"blurry, low quality, distorted","type":"string"},"personGeneration":{"description":"Person generation policy","enum":["allow_all"],"example":"allow_all","type":"string"},"prompt":{"description":"Video description text","example":"Northern lights dancing across an arctic sky above a frozen lake","minLength":1,"type":"string"},"resolution":{"description":"Video resolution","enum":["720p","1080p"],"example":"720p","type":"string"}},"required":["prompt"],"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-t2v004"},"model_id":"google/veo-3-fast-t2v","status":"pending","task_id":"task-t2v004"},"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":{"description":"HTTP method","example":"GET","type":"string"},"url":{"description":"Full URL to query the task result","example":"https://api.modellix.ai/api/v1/tasks/task-abc123","type":"string"}},"type":"object"},"model_id":{"description":"Model ID in `provider/model` format","example":"google/veo-3.1-t2v","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 'prompt' is required"},"schema":{"properties":{"code":{"description":"Error code (equals HTTP status code)","example":400,"type":"integer"},"message":{"description":"Error message in format 'Category: detail'","example":"Invalid parameters: parameter 'prompt' 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":{"description":"Error code (equals HTTP status code)","example":400,"type":"integer"},"message":{"description":"Error message in format 'Category: detail'","example":"Invalid parameters: parameter 'prompt' 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":{"description":"Error code (equals HTTP status code)","example":400,"type":"integer"},"message":{"description":"Error message in format 'Category: detail'","example":"Invalid parameters: parameter 'prompt' 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":{"description":"Error code (equals HTTP status code)","example":400,"type":"integer"},"message":{"description":"Error message in format 'Category: detail'","example":"Invalid parameters: parameter 'prompt' is required","type":"string"}},"required":["code","message"],"type":"object"}}},"description":"Internal server error"}},"summary":"Veo 3 Fast T2V","x-mint":{"href":"google/veo-3-fast-t2v"}}}