{"version":"1","model":{"id":"bytedance/seedance-2.5/multimodal-to-video","name":"Dreamina Seedance 2.5 (Multimodal)","kind":"video","availability":"available","available":true,"restricted":false,"api_key_only":false,"description":"ByteDance's public multimodal video model for text-to-video, first/last-frame animation, multi-asset reference generation, video editing, extension, and native audio. It creates coherent clips up to 30 seconds at a fixed 24fps.","pricing_note":"$10.70/M tokens without video input or $6.40/M with video input at 480p/720p; 1080p uses $11.70/M or $7.00/M. Video input is billed for its measured duration, with a four-second minimum.","categories":["t2v","i2v","v2v","character"],"prompt_required":true,"prompt_supported":true,"supports":{"startImage":true,"endImage":true,"referenceImage":true,"referenceVideo":true,"referenceAudio":true,"audioGeneration":true},"aspect_ratios":["auto","21:9","16:9","4:3","1:1","3:4","9:16"],"resolutions":["480p","720p","1080p"],"durations":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30],"fixed_output":{"frame_rate":24},"output_formats":["mp4","mov"],"max_reference_images":30,"max_reference_videos":10,"max_reference_audios":10,"max_reference_files":50,"reference_video_duration":{"min_seconds":2,"max_seconds":30,"max_combined_seconds":30},"reference_audio_duration":{"min_seconds":2,"max_seconds":30,"max_combined_seconds":30},"base_credits":145,"api_gross_margin_percent":20,"added_at":"2026-08-07","popularity_rank":316,"example_prompt":"Create a cohesive cinematic sequence using the uploaded character, location, source footage, and soundtrack as references.","preview":{"image":"/seedance-2-5-multimodal-preview-v1.webp"},"schema_url":"/api/v1/models?id=bytedance%2Fseedance-2.5%2Fmultimodal-to-video","input_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://www.artemotion.ai/api/v1/models?id=bytedance%2Fseedance-2.5%2Fmultimodal-to-video","title":"Dreamina Seedance 2.5 (Multimodal) generation request","description":"Request body accepted by POST /api/v1/generate for bytedance/seedance-2.5/multimodal-to-video.","type":"object","properties":{"model_id":{"type":"string","const":"bytedance/seedance-2.5/multimodal-to-video","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"},"seedance_task_type":{"title":"Task Type","description":"Choose Edit or Extend when the prompt modifies or continues an attached source video. Put the primary source video first.","default":"generate","type":"string","enum":["generate","edit","extend"]},"seedance_image_role":{"title":"Image Role","description":"Auto treats one image as a first frame and multiple images, or images combined with video/audio, as multimodal references.","default":"auto","type":"string","enum":["auto","reference","first_frame"]},"generate_audio":{"title":"Generate Audio","description":"Generate synchronized audio with the video. Audio-only reference input is supported.","default":true,"type":"boolean"},"output_format":{"title":"Output Format","description":"Container format returned by BytePlus.","default":"mp4","type":"string","enum":["mp4","mov"]},"video_urls":{"title":"Reference Videos","description":"Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Video1, @Video2, and so on.","type":"array","items":{"type":"string"},"maxItems":10},"audio_urls":{"title":"Reference Audio","description":"Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Audio1, @Audio2, and so on.","type":"array","items":{"type":"string"},"maxItems":10},"aspect_ratio":{"type":"string","enum":["auto","21:9","16:9","4:3","1:1","3:4","9:16"]},"resolution":{"type":"string","enum":["480p","720p","1080p"]},"duration":{"type":"number","enum":[4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30]},"image_url":{"type":"string","format":"uri"},"end_image_url":{"type":"string","format":"uri"},"reference_image_urls":{"type":"array","items":{"type":"string","format":"uri"},"maxItems":30},"reference_video_urls":{"type":"array","items":{"type":"string","format":"uri"},"maxItems":10},"reference_audio_urls":{"type":"array","items":{"type":"string","format":"uri"},"maxItems":10}},"required":["model_id","prompt"],"additionalProperties":false},"parameters":[{"key":"seedance_task_type","label":"Task Type","type":"select","default":"generate","options":["generate","edit","extend"],"description":"Choose Edit or Extend when the prompt modifies or continues an attached source video. Put the primary source video first."},{"key":"seedance_image_role","label":"Image Role","type":"select","default":"auto","options":["auto","reference","first_frame"],"description":"Auto treats one image as a first frame and multiple images, or images combined with video/audio, as multimodal references."},{"key":"generate_audio","label":"Generate Audio","type":"toggle","default":true,"description":"Generate synchronized audio with the video. Audio-only reference input is supported."},{"key":"output_format","label":"Output Format","type":"select","default":"mp4","options":["mp4","mov"],"description":"Container format returned by BytePlus."},{"key":"video_urls","label":"Reference Videos","type":"string_array","max_items":10,"description":"Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Video1, @Video2, and so on."},{"key":"audio_urls","label":"Reference Audio","type":"string_array","max_items":10,"description":"Up to 10 clips, 2–30 seconds each and 30 seconds total. Refer to them as @Audio1, @Audio2, and so on."}]}}