{"schema":"postcutoff/model@1","as_of":"2026-10-25T23:49:00+01:00","url":"https://postcutoff.com/m/seedance-2-5/","md":"https://postcutoff.com/m/seedance-2-5/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"seedance-2-5","name":"Dreamina Seedance 2.5","org":"ByteDance Seed","family":"Seedance","released":"2026-07-31","status":"current","type":"video-gen","modality_in":["text","image","video","audio"],"modality_out":["video","audio"],"open_weights":false,"model_license":"proprietary","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":{"per_1m_tokens_480p_720p":10.7,"per_1m_tokens_1080p":11.7,"per_1m_tokens_with_video_input_480p_720p":6.4,"per_1m_tokens_with_video_input_1080p":7,"unit":"USD per 1M video tokens on BytePlus ModelArk (online inference; 4K not supported). Tokens = (input + output video seconds) x width x height x fps / 1024. BytePlus examples, 5 s 16:9 without video input: 480p 0.514 (0.103/s), 720p 1.156 (0.231/s), 1080p 2.843 (0.569/s). Draft mode is billed as 480p","source":"https://docs.byteplus.com/en/docs/modelark/model-pricing"},"price_line":"$10.70 per 1m tokens 480p 720p","access":[{"provider":"BytePlus ModelArk","model_id":"dreamina-seedance-2-5-260628","endpoint":"https://ark.ap-southeast.bytepluses.com/api/v3/","docs":"https://docs.byteplus.com/en/docs/modelark/seedance-2-5"},{"provider":"OpenRouter","model_id":"bytedance/seedance-2.5"},{"provider":"Web app (Jimeng / Doubao Pro, China)","url":"https://seed.bytedance.com/en/seedance2_5"},{"provider":"Web app (Dreamina, CapCut)","url":"https://dreamina.capcut.com/seedance/seedance-2-5"}],"capabilities":[{"name":"30-second single-shot generation with extensions","detail":"Up to 30 s of joint audio-video per generation (15 s in Seedance 2.0), extendable twice with consistent characters, settings and pacing.","first":false,"discovered":"launch","source":"https://seed.bytedance.com/en/blog/one-take-creation-flexible-referencing-introducing-seedance-2-5"},{"name":"50 multimodal references in one pass","detail":"Up to 30 images, 10 video clips and 10 audio clips as references in a single request.","first":false,"discovered":"launch","source":"https://seed.bytedance.com/en/blog/one-take-creation-flexible-referencing-introducing-seedance-2-5"},{"name":"Timestamp-level audio/video editing","detail":"Targeted edits of audio and video at given timestamps, plus green-screen, white-model (untextured previs) control and camera-perspective editing.","first":false,"discovered":"launch","source":"https://seed.bytedance.com/en/seedance2_5"},{"name":"Draft-then-final workflow","detail":"API can render a cheap 480p Draft first and then generate the final video from the Draft task ID (final currently 1080p only; Draft IDs valid 7 days).","first":false,"discovered":"later","source":"https://docs.byteplus.com/en/docs/modelark/seedance-2-5"}],"entry":"2026-07-31-seedance-2-5","notes":"Artificial Analysis text-to-video leaderboard (read 2026-10-25): #5 (rank range 2-8), Elo 1158; AA price 34.12 USD per minute of 1080p (matches BytePlus 0.569/s). Launched 2026-07-31 in Jimeng and Doubao Pro with API 'coming soon'; the ModelArk id dreamina-seedance-2-5-260628 is now in BytePlus docs and pricing (API go-live date not verified; OpenRouter lists it from 2026-08-07). Third-party pages claim native 4K, but BytePlus pricing marks 4K 'Not supported' and the Seed pages give no resolution. Dreamina's 180 s 'long video' beta not verified on Seed pages. Launch entry: 2026-07-31-seedance-2-5. Oct 23, 2026: Volcano Engine opened 'Seedance 2.5 4K' (4K 10-bit, 480p draft previews) to selected enterprise customers only (TechNode citing IT Home); no public 4K API id or price seen.","verified":"2026-10-25","body_md":"ByteDance Seed's flagship audio-video model (successor to Seedance 2.0): 30-second single shots, two extensions, up to 50 references, timestamp-level editing. Asynchronous ModelArk content-generation task API; activate the model in the ModelArk console first.\n\nArtificial Analysis text-to-video (with audio) leaderboard, read 2026-10-25: rank 5 (CI range 2-8), Elo 1158 (https://artificialanalysis.ai/video/leaderboard/text-to-video).\n\nSources: https://seed.bytedance.com/en/blog/one-take-creation-flexible-referencing-introducing-seedance-2-5 · https://seed.bytedance.com/en/seedance2_5 · https://docs.byteplus.com/en/docs/modelark/seedance-2-5 · https://docs.byteplus.com/en/docs/modelark/model-pricing · https://technode.com/2026/07/31/bytedance-launches-seedance-2-5-video-generation-model/","page_url":"https://postcutoff.com/m/seedance-2-5/","standing":{"kind":"video generation","newer_count":7,"newer":[{"id":"flux-3-max","name":"FLUX 3 Max","org":"Black Forest Labs","released":"2026-10-19","page_url":"https://postcutoff.com/m/flux-3-max/"},{"id":"kling-4-0","name":"Kling 4.0 (and 4.0 Flash)","org":"Kuaishou","released":"2026-10-15","page_url":"https://postcutoff.com/m/kling-4-0/"},{"id":"tavus-griffin","name":"Tavus Griffin (Human Interaction Model)","org":"Tavus","released":"2026-10-01","page_url":"https://postcutoff.com/m/tavus-griffin/"},{"id":"heygen-video-1","name":"HeyGen Video 1","org":"HeyGen","released":"2026-09-30","page_url":"https://postcutoff.com/m/heygen-video-1/"},{"id":"utopai-x","name":"Utopai X","org":"Utopai Studios","released":"2026-09-30","page_url":"https://postcutoff.com/m/utopai-x/"}],"before":{"id":"seedance-2-0","name":"Dreamina Seedance 2.0","org":"ByteDance Seed","released":"2026-02","page_url":"https://postcutoff.com/m/seedance-2-0/"},"after":null,"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}