Seedream and Seedance (Volcano Engine API)

At a glance

Images

Content CredentialsA signed record (C2PA) of how the file was made, sealed so any change shows.

Not stated. None of ByteDance's pages listed under Sources read says so.

Invisible watermarkA signal woven into the pixels, frames, audio or wording, meant to survive copying.

Volcano Engine Ark's documentation, updated January 16, 2026, says it offers API customers a Beta "implicit watermark" that adds file-metadata labels to AI-generated images and videos, to help meet China's requirements for labeling AI-generated synthetic content. Customers switch it on for each inference endpoint.

Ark calls this an implicit watermark, but describes it as a label in the file's metadata.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Opening paragraph and note

火山方舟为 API 客户提供隐式水印技术能力，能够针对图片、视频等 AI 生成产物添加文件元数据隐性标识。本文为您介绍隐式水印字段信息、接入方式等内容，帮助API 客户更好地利用火山方舟的隐式水印技术，满足相关法规对 AI 生成合成内容标识的要求。" "隐式水印为 Beta 功能，限时免费。" [Researcher's translation: "Volcano Ark provides API customers with implicit watermark capability, able to add file-metadata implicit labels to AI-generated output such as images and videos. […] to help API customers […] meet the requirements of relevant regulations on labeling AI-generated synthetic content." / "Implicit watermarking is a Beta feature, free for a limited time."]

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Background; Usage notes

2025年3月14日发布了规范性文件《人工智能生成合成内容标识办法》，并委托中国电子技术标准化研究院同步制定、下发强制性国家标准GB 45438-2025《网络安全技术 人工智能生成合成内容标识方法》" "两份文件都于2025年9月1日正式生效。" "根据法规要求，隐式水印Metadata元数据包含以下字段：" "ContentProducer | string | 生成合成服务提供者 | 生成合成服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentProducer 参数" "ReservedCode1 | string | 预留字段 1 | 用于生成合成服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "ContentPropagator | string | 内容传播服务提供者 | 内容传播服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentPropagator参数" "ReservedCode2 | string | 预留字段 2 | 内容传播服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "支持的模型：视频生成能力、图片生成能力。" "接入方式：支持在方舟控制台by 推理点开启隐式水印，多个推理点可输入同主体信息。" "方舟对哪些字段打标：Label（生成合成标签）、ContentProducer（内容生成方）、ContentPropagator（内容传播方）" "注：ProduceID（内容制作编号）、PropagateID（内容传播编号）属于生成/传播方自身对资源id的管理，方舟无法帮客户打标，需要客户自行写入Metadata信息，客户可自定义命名规则。" "开启需用户勾选生成/传播方，并填写对应生成/传播方的主体名称和社会统一信用代码（用于生成标识，为国家标准）" "面向个人用户的产品，且产品不带传播属性 | 需要选择：生成方标识，填入该产品的主体和社会统一信用代码。不需要选择：传播方标识，传播方标识应为最终传播平台自己添加。" [Researcher's translation: Background: the Measures for Labeling AI-Generated Synthetic Content (published 2025-03-14) and mandatory national standard GB 45438-2025; "both documents took effect on 2025-09-01." / "Under the regulatory requirements, the implicit-watermark metadata contains the following fields:" / ContentProducer (the generation service provider's name or code): Ark helps = yes, "creates the ContentProducer parameter from the information the user enters on the platform" / ReservedCode1: Ark helps = no, "capability in development" / ContentPropagator: Ark helps = yes, created from the information the user enters / ReservedCode2: Ark helps = no, "capability in development" / "Supported models: video generation and image generation." / "Access: implicit watermarking can be switched on per inference endpoint in the Ark console; several endpoints can use the same entity information." / "Fields Ark labels: Label, ContentProducer, ContentPropagator." / "ProduceID and PropagateID are the producer's or propagator's own resource IDs; Ark cannot write them; customers must write them into the metadata themselves." / "To switch it on, the user ticks producer and/or propagator and enters that producer's or propagator's entity name and unified social credit code (used to generate the label, per the national standard)." / FAQ example: for a product for individual users without a propagation function, select the producer label only; the propagator label should be added by the final propagating platform itself.]

AI label in metadataA plain metadata field (IPTC Digital Source Type) saying AI made the content. Anyone can add or remove it.

Not stated. None of ByteDance's pages listed under Sources read says so.

Visible markA mark you can see, such as a logo or a sparkle in a corner.

Not stated. None of ByteDance's pages listed under Sources read says so.

Tool named in metadataThe tool or model written into ordinary file fields, such as Software or Creator.

Volcano Engine Ark's documentation, updated January 16, 2026, says the implicit watermark writes the Label field and builds the ContentProducer and ContentPropagator fields from the entity name and unified social credit code the customer enters. Ark cannot write ProduceID or PropagateID, which customers must write themselves.

Ark cites China's labeling Measures and national standard GB 45438-2025, both effective September 1, 2025.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Background; Usage notes

2025年3月14日发布了规范性文件《人工智能生成合成内容标识办法》，并委托中国电子技术标准化研究院同步制定、下发强制性国家标准GB 45438-2025《网络安全技术 人工智能生成合成内容标识方法》" "两份文件都于2025年9月1日正式生效。" "根据法规要求，隐式水印Metadata元数据包含以下字段：" "ContentProducer | string | 生成合成服务提供者 | 生成合成服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentProducer 参数" "ReservedCode1 | string | 预留字段 1 | 用于生成合成服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "ContentPropagator | string | 内容传播服务提供者 | 内容传播服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentPropagator参数" "ReservedCode2 | string | 预留字段 2 | 内容传播服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "支持的模型：视频生成能力、图片生成能力。" "接入方式：支持在方舟控制台by 推理点开启隐式水印，多个推理点可输入同主体信息。" "方舟对哪些字段打标：Label（生成合成标签）、ContentProducer（内容生成方）、ContentPropagator（内容传播方）" "注：ProduceID（内容制作编号）、PropagateID（内容传播编号）属于生成/传播方自身对资源id的管理，方舟无法帮客户打标，需要客户自行写入Metadata信息，客户可自定义命名规则。" "开启需用户勾选生成/传播方，并填写对应生成/传播方的主体名称和社会统一信用代码（用于生成标识，为国家标准）" "面向个人用户的产品，且产品不带传播属性 | 需要选择：生成方标识，填入该产品的主体和社会统一信用代码。不需要选择：传播方标识，传播方标识应为最终传播平台自己添加。" [Researcher's translation: Background: the Measures for Labeling AI-Generated Synthetic Content (published 2025-03-14) and mandatory national standard GB 45438-2025; "both documents took effect on 2025-09-01." / "Under the regulatory requirements, the implicit-watermark metadata contains the following fields:" / ContentProducer (the generation service provider's name or code): Ark helps = yes, "creates the ContentProducer parameter from the information the user enters on the platform" / ReservedCode1: Ark helps = no, "capability in development" / ContentPropagator: Ark helps = yes, created from the information the user enters / ReservedCode2: Ark helps = no, "capability in development" / "Supported models: video generation and image generation." / "Access: implicit watermarking can be switched on per inference endpoint in the Ark console; several endpoints can use the same entity information." / "Fields Ark labels: Label, ContentProducer, ContentPropagator." / "ProduceID and PropagateID are the producer's or propagator's own resource IDs; Ark cannot write them; customers must write them into the metadata themselves." / "To switch it on, the user ticks producer and/or propagator and enters that producer's or propagator's entity name and unified social credit code (used to generate the label, per the national standard)." / FAQ example: for a product for individual users without a propagation function, select the producer label only; the propagator label should be added by the final propagating platform itself.]

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Opening paragraph and note

火山方舟为 API 客户提供隐式水印技术能力，能够针对图片、视频等 AI 生成产物添加文件元数据隐性标识。本文为您介绍隐式水印字段信息、接入方式等内容，帮助API 客户更好地利用火山方舟的隐式水印技术，满足相关法规对 AI 生成合成内容标识的要求。" "隐式水印为 Beta 功能，限时免费。" [Researcher's translation: "Volcano Ark provides API customers with implicit watermark capability, able to add file-metadata implicit labels to AI-generated output such as images and videos. […] to help API customers […] meet the requirements of relevant regulations on labeling AI-generated synthetic content." / "Implicit watermarking is a Beta feature, free for a limited time."]

Video

Content CredentialsA signed record (C2PA) of how the file was made, sealed so any change shows.

Not stated. None of ByteDance's pages listed under Sources read says so.

Invisible watermarkA signal woven into the pixels, frames, audio or wording, meant to survive copying.

Volcano Engine Ark's documentation, updated January 16, 2026, says it offers API customers a Beta "implicit watermark" that adds file-metadata labels to AI-generated images and videos, to help meet China's requirements for labeling AI-generated synthetic content. Customers switch it on for each inference endpoint.

Ark calls this an implicit watermark, but describes it as a label in the file's metadata.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Opening paragraph and note

火山方舟为 API 客户提供隐式水印技术能力，能够针对图片、视频等 AI 生成产物添加文件元数据隐性标识。本文为您介绍隐式水印字段信息、接入方式等内容，帮助API 客户更好地利用火山方舟的隐式水印技术，满足相关法规对 AI 生成合成内容标识的要求。" "隐式水印为 Beta 功能，限时免费。" [Researcher's translation: "Volcano Ark provides API customers with implicit watermark capability, able to add file-metadata implicit labels to AI-generated output such as images and videos. […] to help API customers […] meet the requirements of relevant regulations on labeling AI-generated synthetic content." / "Implicit watermarking is a Beta feature, free for a limited time."]

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Background; Usage notes

2025年3月14日发布了规范性文件《人工智能生成合成内容标识办法》，并委托中国电子技术标准化研究院同步制定、下发强制性国家标准GB 45438-2025《网络安全技术 人工智能生成合成内容标识方法》" "两份文件都于2025年9月1日正式生效。" "根据法规要求，隐式水印Metadata元数据包含以下字段：" "ContentProducer | string | 生成合成服务提供者 | 生成合成服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentProducer 参数" "ReservedCode1 | string | 预留字段 1 | 用于生成合成服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "ContentPropagator | string | 内容传播服务提供者 | 内容传播服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentPropagator参数" "ReservedCode2 | string | 预留字段 2 | 内容传播服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "支持的模型：视频生成能力、图片生成能力。" "接入方式：支持在方舟控制台by 推理点开启隐式水印，多个推理点可输入同主体信息。" "方舟对哪些字段打标：Label（生成合成标签）、ContentProducer（内容生成方）、ContentPropagator（内容传播方）" "注：ProduceID（内容制作编号）、PropagateID（内容传播编号）属于生成/传播方自身对资源id的管理，方舟无法帮客户打标，需要客户自行写入Metadata信息，客户可自定义命名规则。" "开启需用户勾选生成/传播方，并填写对应生成/传播方的主体名称和社会统一信用代码（用于生成标识，为国家标准）" "面向个人用户的产品，且产品不带传播属性 | 需要选择：生成方标识，填入该产品的主体和社会统一信用代码。不需要选择：传播方标识，传播方标识应为最终传播平台自己添加。" [Researcher's translation: Background: the Measures for Labeling AI-Generated Synthetic Content (published 2025-03-14) and mandatory national standard GB 45438-2025; "both documents took effect on 2025-09-01." / "Under the regulatory requirements, the implicit-watermark metadata contains the following fields:" / ContentProducer (the generation service provider's name or code): Ark helps = yes, "creates the ContentProducer parameter from the information the user enters on the platform" / ReservedCode1: Ark helps = no, "capability in development" / ContentPropagator: Ark helps = yes, created from the information the user enters / ReservedCode2: Ark helps = no, "capability in development" / "Supported models: video generation and image generation." / "Access: implicit watermarking can be switched on per inference endpoint in the Ark console; several endpoints can use the same entity information." / "Fields Ark labels: Label, ContentProducer, ContentPropagator." / "ProduceID and PropagateID are the producer's or propagator's own resource IDs; Ark cannot write them; customers must write them into the metadata themselves." / "To switch it on, the user ticks producer and/or propagator and enters that producer's or propagator's entity name and unified social credit code (used to generate the label, per the national standard)." / FAQ example: for a product for individual users without a propagation function, select the producer label only; the propagator label should be added by the final propagating platform itself.]

AI label in metadataA plain metadata field (IPTC Digital Source Type) saying AI made the content. Anyone can add or remove it.

Not stated. None of ByteDance's pages listed under Sources read says so.

Visible markA mark you can see, such as a logo or a sparkle in a corner.

Not stated. None of ByteDance's pages listed under Sources read says so.

Tool named in metadataThe tool or model written into ordinary file fields, such as Software or Creator.

Volcano Engine Ark's documentation, updated January 16, 2026, says the implicit watermark writes the Label field and builds the ContentProducer and ContentPropagator fields from the entity name and unified social credit code the customer enters. Ark cannot write ProduceID or PropagateID, which customers must write themselves.

Ark cites China's labeling Measures and national standard GB 45438-2025, both effective September 1, 2025.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Background; Usage notes

2025年3月14日发布了规范性文件《人工智能生成合成内容标识办法》，并委托中国电子技术标准化研究院同步制定、下发强制性国家标准GB 45438-2025《网络安全技术 人工智能生成合成内容标识方法》" "两份文件都于2025年9月1日正式生效。" "根据法规要求，隐式水印Metadata元数据包含以下字段：" "ContentProducer | string | 生成合成服务提供者 | 生成合成服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentProducer 参数" "ReservedCode1 | string | 预留字段 1 | 用于生成合成服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "ContentPropagator | string | 内容传播服务提供者 | 内容传播服务提供者的名称或编码 | 是 | 根据用户在平台输入的信息，帮助用户创建 ContentPropagator参数" "ReservedCode2 | string | 预留字段 2 | 内容传播服务提供者自主开展安全防护，保护内容、标识完整性的信息 | 否 | 能力开发中" "支持的模型：视频生成能力、图片生成能力。" "接入方式：支持在方舟控制台by 推理点开启隐式水印，多个推理点可输入同主体信息。" "方舟对哪些字段打标：Label（生成合成标签）、ContentProducer（内容生成方）、ContentPropagator（内容传播方）" "注：ProduceID（内容制作编号）、PropagateID（内容传播编号）属于生成/传播方自身对资源id的管理，方舟无法帮客户打标，需要客户自行写入Metadata信息，客户可自定义命名规则。" "开启需用户勾选生成/传播方，并填写对应生成/传播方的主体名称和社会统一信用代码（用于生成标识，为国家标准）" "面向个人用户的产品，且产品不带传播属性 | 需要选择：生成方标识，填入该产品的主体和社会统一信用代码。不需要选择：传播方标识，传播方标识应为最终传播平台自己添加。" [Researcher's translation: Background: the Measures for Labeling AI-Generated Synthetic Content (published 2025-03-14) and mandatory national standard GB 45438-2025; "both documents took effect on 2025-09-01." / "Under the regulatory requirements, the implicit-watermark metadata contains the following fields:" / ContentProducer (the generation service provider's name or code): Ark helps = yes, "creates the ContentProducer parameter from the information the user enters on the platform" / ReservedCode1: Ark helps = no, "capability in development" / ContentPropagator: Ark helps = yes, created from the information the user enters / ReservedCode2: Ark helps = no, "capability in development" / "Supported models: video generation and image generation." / "Access: implicit watermarking can be switched on per inference endpoint in the Ark console; several endpoints can use the same entity information." / "Fields Ark labels: Label, ContentProducer, ContentPropagator." / "ProduceID and PropagateID are the producer's or propagator's own resource IDs; Ark cannot write them; customers must write them into the metadata themselves." / "To switch it on, the user ticks producer and/or propagator and enters that producer's or propagator's entity name and unified social credit code (used to generate the label, per the national standard)." / FAQ example: for a product for individual users without a propagation function, select the producer label only; the propagator label should be added by the final propagating platform itself.]

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Opening paragraph and note

火山方舟为 API 客户提供隐式水印技术能力，能够针对图片、视频等 AI 生成产物添加文件元数据隐性标识。本文为您介绍隐式水印字段信息、接入方式等内容，帮助API 客户更好地利用火山方舟的隐式水印技术，满足相关法规对 AI 生成合成内容标识的要求。" "隐式水印为 Beta 功能，限时免费。" [Researcher's translation: "Volcano Ark provides API customers with implicit watermark capability, able to add file-metadata implicit labels to AI-generated output such as images and videos. […] to help API customers […] meet the requirements of relevant regulations on labeling AI-generated synthetic content." / "Implicit watermarking is a Beta feature, free for a limited time."]

Limits and detection

Checking tool from the makerA way the maker offers to check a file for its traces.

Volcano Engine Ark says watermarked output can be verified on China's national labeling detection platform; image implicit watermarks cannot yet be verified there.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Verification

生成产物添加水印情况可上传到国家标识检测平台进行验证。" "生图隐式水印暂时无法通过国家平台验证，后续版本会支持验证，目前可使用jpdump – JPEG Header Viewer查看文件头信息。" [Researcher's translation: "Whether a watermark was added to output can be verified by uploading it to the national labeling detection platform." / "Implicit watermarks on generated images cannot yet be verified through the national platform; later versions will support this; for now, jpdump (JPEG Header Viewer) can be used to view the file header."]

What the maker says about limitsIn the maker's own words.

Volcano Engine Ark says watermarked output can be verified on China's national labeling detection platform, except that image implicit watermarks cannot yet be verified there.

为 AI 生成产物添加隐式水印 (Add implicit watermarks to AI-generated output), Volcano Engine ArkByteDance (Volcano Engine / 火山引擎)

Quoted passage Verification

生成产物添加水印情况可上传到国家标识检测平台进行验证。" "生图隐式水印暂时无法通过国家平台验证，后续版本会支持验证，目前可使用jpdump – JPEG Header Viewer查看文件头信息。" [Researcher's translation: "Whether a watermark was added to output can be verified by uploading it to the national labeling detection platform." / "Implicit watermarks on generated images cannot yet be verified through the national platform; later versions will support this; for now, jpdump (JPEG Header Viewer) can be used to view the file header."]