{"version":"1","model":{"id":"fal-ai/kokoro/american-english","name":"Kokoro (US English)","kind":"audio","availability":"available","available":true,"restricted":false,"api_key_only":false,"description":"Kokoro lightweight TTS — natural American English voices with fast inference.","pricing_note":"~$0.02 / 1k chars","categories":["narrate"],"prompt_required":true,"prompt_supported":true,"supports":{},"aspect_ratios":[],"resolutions":[],"durations":[],"base_credits":1,"api_gross_margin_percent":20,"added_at":"2026-05-24","popularity_rank":52,"example_prompt":"The thing about great coffee is that it's never just about the caffeine. It's a ritual — the grind, the steam, the first sip that tells you the day is finally starting.","preview":{"image":"/images/model-previews/generated/kokoro-american-english-v1.webp"},"schema_url":"/api/v1/models?id=fal-ai%2Fkokoro%2Famerican-english","input_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://www.artemotion.ai/api/v1/models?id=fal-ai%2Fkokoro%2Famerican-english","title":"Kokoro (US English) generation request","description":"Request body accepted by POST /api/v1/generate for fal-ai/kokoro/american-english.","type":"object","properties":{"model_id":{"type":"string","const":"fal-ai/kokoro/american-english","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"},"voice":{"title":"Voice","description":"Kokoro voice style. Click ▶ to preview any voice.","default":"af_heart","type":"string","enum":["af_heart","af_alloy","af_aoede","af_bella","af_jessica","af_kore","af_nicole","af_nova","af_river","af_sarah","af_sky","am_adam","am_echo","am_eric","am_fenrir","am_liam","am_michael","am_onyx","am_puck","am_santa"]},"speed":{"title":"Speed","description":"Speed of the generated audio. Default is 1.0.","default":1,"type":"number","minimum":0.1,"maximum":5}},"required":["model_id","prompt"],"additionalProperties":false},"parameters":[{"key":"voice","label":"Voice","type":"select","default":"af_heart","options":["af_heart","af_alloy","af_aoede","af_bella","af_jessica","af_kore","af_nicole","af_nova","af_river","af_sarah","af_sky","am_adam","am_echo","am_eric","am_fenrir","am_liam","am_michael","am_onyx","am_puck","am_santa"],"description":"Kokoro voice style. Click ▶ to preview any voice."},{"key":"speed","label":"Speed","type":"number","default":1,"min":0.1,"max":5,"description":"Speed of the generated audio. Default is 1.0."}]}}