{"version":"1","model":{"id":"fal-ai/flashhead","name":"FlashHead","kind":"video","availability":"available","available":true,"restricted":false,"api_key_only":false,"description":"FlashHead creates a talking portrait from one image and typed text, with built-in ElevenLabs speech and synchronized facial animation.","pricing_note":"$0.005 per second of generated video. Speech is generated from the typed text.","categories":["lipsync"],"prompt_required":false,"prompt_supported":true,"supports":{"startImage":true},"requires":{"startImage":true},"aspect_ratios":[],"resolutions":[],"durations":[],"base_credits":4,"api_gross_margin_percent":20,"added_at":"2026-07-16","popularity_rank":387,"example_prompt":"Upload a portrait, type the words to speak, and choose a voice — FlashHead generates the speech and talking animation automatically.","preview":{"video":"https://cdn.artemotion.ai/file/artemotion-ai-bckt/model-previews/flashhead-fal-v1-sm.mp4"},"schema_url":"/api/v1/models?id=fal-ai%2Fflashhead","input_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://www.artemotion.ai/api/v1/models?id=fal-ai%2Fflashhead","title":"FlashHead generation request","description":"Request body accepted by POST /api/v1/generate for fal-ai/flashhead.","type":"object","properties":{"model_id":{"type":"string","const":"fal-ai/flashhead","description":"ArtEmotion model identifier."},"extra":{"type":"object","additionalProperties":true,"description":"Model-specific settings may also be nested here."},"max_credits":{"type":"number","minimum":1,"description":"Reject before submission if the estimated list price exceeds this cap."},"webhook_url":{"type":"string","format":"uri","maxLength":2048},"webhook_secret":{"type":"string","maxLength":512},"folder_id":{"type":"string"},"prompt":{"type":"string"},"text":{"title":"Script","description":"The words the avatar will speak. Speech and lip sync are generated automatically.","type":"string"},"voice":{"title":"Voice","description":"Built-in ElevenLabs voice used to generate the speech.","default":"Aria","type":"string","enum":["Aria","Roger","Sarah","Laura","Charlie","George","Callum","River","Liam","Charlotte","Alice","Matilda","Will","Jessica","Eric","Chris","Brian","Daniel","Lily","Bill"]},"stability":{"title":"Voice Stability","description":"Lower values sound more expressive; higher values are steadier.","default":0.5,"type":"number","minimum":0,"maximum":1,"multipleOf":0.05},"seed":{"title":"Seed","description":"Optional seed for reproducible results.","type":"integer","minimum":0,"maximum":4294967295},"image_url":{"type":"string","format":"uri"}},"required":["model_id","text","voice","image_url"],"additionalProperties":false},"parameters":[{"key":"text","label":"Script","type":"text","required":true,"description":"The words the avatar will speak. Speech and lip sync are generated automatically."},{"key":"voice","label":"Voice","type":"select","default":"Aria","options":["Aria","Roger","Sarah","Laura","Charlie","George","Callum","River","Liam","Charlotte","Alice","Matilda","Will","Jessica","Eric","Chris","Brian","Daniel","Lily","Bill"],"required":true,"description":"Built-in ElevenLabs voice used to generate the speech."},{"key":"stability","label":"Voice Stability","type":"number","default":0.5,"min":0,"max":1,"step":0.05,"description":"Lower values sound more expressive; higher values are steadier."},{"key":"seed","label":"Seed","type":"seed","min":0,"max":4294967295,"description":"Optional seed for reproducible results."}]}}