{"model":{"id":"caption-fast","name":"Caption Fast","description":"Lightweight captioning + visual question-answering. Sub-second responses, ideal for high-volume pipelines.","tasks":["caption","vqa"],"credits_per_call":2,"input_fields":{"image_url":"string (required)","question":"string (optional — for VQA)"},"output_fields":{"answer":"string"},"api_gross_margin_percent":20,"schema_url":"/api/v1/vision?model_id=caption-fast","input_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://www.artemotion.ai/api/v1/vision?model_id=caption-fast","title":"Caption Fast request","type":"object","properties":{"model_id":{"type":"string","const":"caption-fast"},"webhook_url":{"type":"string","format":"uri","maxLength":2048},"webhook_secret":{"type":"string","maxLength":512},"image_url":{"type":"string","format":"uri"},"question":{"type":"string"}},"required":["model_id","image_url"],"additionalProperties":false}},"version":"1","rate_limit":"20 req/min"}