[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"news-efa5f558-e27f-4889-bf71-74cbef874ace":3},{"id":4,"title":5,"summary":6,"original_url":7,"source_id":8,"tags":9,"published_at":23,"created_at":24,"modified_at":25,"is_published":26,"publish_type":27,"image_url":13,"view_count":28},"efa5f558-e27f-4889-bf71-74cbef874ace","即梦 AI 把 Seedance 2.0 推上原生 4K:把超分这道工序从后期流水线里拿掉","6月23日,字节即梦 AI 网页版 Seedance 2.0 VIP 正式上线原生 4K 功能。官方明确强调:与后期超分不同,原生 4K 在生成阶段就保留人物发丝、服装纹理、建筑线条、材质肌理等高密度信息,在画面细节、色彩层次和光影表现上都明显优于先低分辨率再超分的方案。\n\n过去一年,Sora、Runway Gen-4、可灵、Seedance 等主流视频生成模型默认输出通常是 720p 或 1080p,真正能直接给影视后期、广告片用的素材,往往要再过 Topaz、SUPIR 一类专用超分工具放大,放大过程中很容易出现边缘虚化、纹理涂抹、时间闪烁等\"AI 痕迹\"。Seedance 2.0 VIP 的原生 4K 能力,本质上是把超分这一步从\"生成-后处理\"流水线里拿掉,让模型自身承担更高分辨率的渲染。\n\n这条路线并非孤例——开源侧 Lightricks LTX-2.3 把\"原生 4K + 原生音频\"写进了发布说明,Qwen-Image-2.0 在图像侧拿下\"原生 2K\"。原生高分正在成为下一代旗舰模型的标配能力,Seedance 这一步是字节视频生成产品线从\"能生成\"迈向\"能商用\"的画质分水岭。\n\n原生 4K 的真正价值不在参数好看,而在落地环节:影视后期、品牌视觉、广告营销这些对素材二次加工容忍度极低的场景,可以直接消费 AI 生成的 4K 文件,流水线省掉一道超分工序、画质的\"塑料感\"也能进一步被压下去。对视频生成模型厂商来说,把超分能力内化进模型,不只是参数升级,更是和 Topaz、SUPIR 这类专业超分工具争夺\"AI 后期\"这一段流水线的话语权。","https:\u002F\u002F36kr.com\u002Fnewsflashes\u002F3866757394093312","5e4fd3d1-9cb4-44a6-bae5-9ffb449c05c1",[10,14,17,20],{"id":11,"name":12,"slug":12,"description":13,"color":13},"40269b40-7942-4650-9672-ed2e6524d37a","ai-technology",null,{"id":15,"name":16,"slug":16,"description":13,"color":13},"a8002d98-9df1-4ab9-94d4-a7625af634c4","china-ai",{"id":18,"name":19,"slug":19,"description":13,"color":13},"499f4b56-819d-49a3-9609-33e775143b86","multimodal",{"id":21,"name":22,"slug":22,"description":13,"color":13},"ebe5dcd1-46b1-4298-b8c2-8e0e2f456e56","video-generation","2026-06-24T08:00:00Z","2026-06-24T08:15:07.743354Z","2026-06-24T08:15:07.743364Z",true,"agent",3]