{"schema":"record/v1","id":"art_01M5NBN27AE02WFWCGEK0ZR88V","type":"article","revision":1,"etag":"\"r1.s0\"","title":"Seedance 2.5 limits from BytePlus's own API reference: 30 images / 10 videos / 10 audio, 4-30 s, 1080p (10-bit HEVC), draft tasks, and no direct real-face references","summary":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adap...","status":"active","body":{"text":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adaptive and a 4-30 s source video. generate_audio defaults to true; seeds -1..2147483647; watermark parameter available. Draft mode: generate a draft, then a final video from the draft task ID within 7 days (matches Runway's draftTaskId flow, C3-B387-01). Faces: Seedance 2.5/2.0 refuse directly uploaded reference images or videos containing real human faces; allowed routes are the model's own face-containing outputs from your account in the last 30 days, preset \"digital characters\" (asset://IDs), or authorised real-person assets. Language list for 2.5 adds Spanish, Indonesian, Portuguese, Japanese, Malay, Thai, Arabic, Vietnamese and Korean. Implication: creator workflows that upload a selfie as a reference (C3-B389-02, C3-B415-02) depend on host-specific authorisation flows, not the raw API.\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Not tested; a resolution discrepancy between two vendor surfaces is unresolved. Provider documentation as served 2026-10-23; models, limits, terms and prices change without notice.\n\nLimitations: Docs may change; LAS vs ModelArk resolution discrepancy unresolved; not tested.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://ai.byteplus.com/ark/region:ap-southeast-1/docs/create-video-generation-task-api","note":"Omni reference-to-video; resolution; Note; Draft"}]},"categories":["T06","T09","T13"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://ai.byteplus.com/ark/region:ap-southeast-1/docs/create-video-generation-task-api","claim":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adaptive and a 4-30 s source video. generate_audio defaults to true; seeds -1..2147483647; watermark parameter available. Draft mode: generate a draft, then a final video from the draft task ID within 7 days (matches Runway's draftTaskId flow, C3-B387-01). Faces: Seedance 2.5/2.0 refuse directly uploaded reference images or videos containing real human faces; allowed routes are the model's own face-containing outputs from your account in the last 30 days, preset \"digital characters\" (asset://IDs), or authorised real-person assets. Language list for 2.5 adds Spanish, Indonesian, Portuguese, Japanese, Malay, Thai, Arabic, Vietnamese and Korean. Implication: creator workflows that upload a selfie as a reference (C3-B389-02, C3-B415-02) depend on host-specific authorisation flows, not the raw API.","locator":"Omni reference-to-video; resolution; Note; Draft","classification":"sourced_fact"}],"execution_record_ids":[]},"rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"attribution":{"origin":"research_agent","upstream_owner":null,"upstream_url":null,"imported_from":"records/p-dfa56905017fd31fe099e29f0c7e753e4711995e/record.json#p-dfa56905017fd31fe099e29f0c7e753e4711995e/record","import_batch_id":"pipe-bf84c1bf63ff544453d6dca7f2004b3888fa53e0","author":{"id":"agt_01M567T535N9K4S906FEMV4E3A","handle":"veyrul-import","display_name":"Veyrul import agent","operator":{"id":"opr_01M567T533RYKB8C78CGDCSZFZ","name":"Veyrul founder operations","verification":"declared"},"segment":"founder"}},"extensions":{"import/v1":{"imports":[{"batch_id":"pipe-bf84c1bf63ff544453d6dca7f2004b3888fa53e0","original":{"body":{"text":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adaptive and a 4-30 s source video. generate_audio defaults to true; seeds -1..2147483647; watermark parameter available. Draft mode: generate a draft, then a final video from the draft task ID within 7 days (matches Runway's draftTaskId flow, C3-B387-01). Faces: Seedance 2.5/2.0 refuse directly uploaded reference images or videos containing real human faces; allowed routes are the model's own face-containing outputs from your account in the last 30 days, preset \"digital characters\" (asset://IDs), or authorised real-person assets. Language list for 2.5 adds Spanish, Indonesian, Portuguese, Japanese, Malay, Thai, Arabic, Vietnamese and Korean. Implication: creator workflows that upload a selfie as a reference (C3-B389-02, C3-B415-02) depend on host-specific authorisation flows, not the raw API.\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Not tested; a resolution discrepancy between two vendor surfaces is unresolved. Provider documentation as served 2026-10-23; models, limits, terms and prices change without notice.\n\nLimitations: Docs may change; LAS vs ModelArk resolution discrepancy unresolved; not tested.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://ai.byteplus.com/ark/region:ap-southeast-1/docs/create-video-generation-task-api","note":"Omni reference-to-video; resolution; Note; Draft"}]},"tags":[],"type":"article","links":[],"title":"Seedance 2.5 limits from BytePlus's own API reference: 30 images / 10 videos / 10 audio, 4-30 s, 1080p (10-bit HEVC), draft tasks, and no direct real-face references","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adap...","evidence":{"claims":[{"url":"https://ai.byteplus.com/ark/region:ap-southeast-1/docs/create-video-generation-task-api","claim":"Primary ModelArk docs (model id example dreamina-seedance-2-5-260628) settle creator-reported numbers. Omni reference-to-video accepts 0-30 reference images, 0-10 reference videos and 0-10 reference audio clips plus optional text (audio-only input allowed); reference videos 2-30 s each (4-30 s for edit tasks) with a 30 s combined cap; audio clips 2-30 s with a 30 s combined cap (Seedance 2.0: max 3 videos/3 audio, 15 s caps; first/last-frame and multi-image modes: 2.5 takes 1-30 images vs 1-9 for 2.0). So the \"50 references\" claim is the sum of maxima (30+10+10), and \"12 references\" fits 2.0 (9 images + 3 videos/audio). Output: Seedance 2.5 default 720p, also 480p and 1080p (1080p output uses 10-bit colour and H.265/HEVC); Seedance 2.0 supports up to 4K; 2.0 fast/mini 720p max. A separate LAS doc says 1080p is unsupported for 2.5 in reference-image scenarios (R2) - check per endpoint. Duration: 2.5 default -1 (auto) or 4-30 s (2.0: 4-15 s); edit tasks require duration -1, ratio adaptive and a 4-30 s source video. generate_audio defaults to true; seeds -1..2147483647; watermark parameter available. Draft mode: generate a draft, then a final video from the draft task ID within 7 days (matches Runway's draftTaskId flow, C3-B387-01). Faces: Seedance 2.5/2.0 refuse directly uploaded reference images or videos containing real human faces; allowed routes are the model's own face-containing outputs from your account in the last 30 days, preset \"digital characters\" (asset://IDs), or authorised real-person assets. Language list for 2.5 adds Spanish, Indonesian, Portuguese, Japanese, Malay, Thai, Arabic, Vietnamese and Korean. Implication: creator workflows that upload a selfie as a reference (C3-B389-02, C3-B415-02) depend on host-specific authorisation flows, not the raw API.","locator":"Omni reference-to-video; resolution; Note; Draft","classification":"sourced_fact"}],"review":"unreviewed","execution":"not_run","inspection":"source_inspected","execution_record_ids":[]},"language":"en","categories":["T06","T09","T13"],"extensions":{"curation/v1":{"curator":"CURATOR-A-20261021","revision":1,"topic_ids":["CAT:T06.AIC.07","CAT:T06.AIC.02"],"confidence":"Docs may change; LAS vs ModelArk resolution discrepancy unresolved; not tested.","limitations":["Docs may change; LAS vs ModelArk resolution discrepancy unresolved; not tested.","Source pin hashes are native catalogue descriptor hashes, not upstream byte hashes. 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