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seedream_edit_image

Edit existing images by text prompt. Change styles, backgrounds, clothing, or attributes; compose objects into new scenes.

Instructions

Edit or modify existing images using ByteDance's Seedream/SeedEdit model.

This tool modifies existing images based on text instructions. It can change
styles, backgrounds, attributes, clothing, and more. Supports single or
multiple image inputs.

Use this when:
- You want to modify or transform an existing image
- You need to change style, background, colors, or attributes
- You want to apply artistic transformations (watercolor, oil painting, etc.)
- You need virtual try-on (clothing on person)
- You want to place objects in different scenes

Common use cases:
- Style transfer: "Convert to anime style", "Make it look like a pencil sketch"
- Background change: "Replace background with a sunset beach"
- Attribute edit: "Change hair color to blonde", "Add sunglasses"
- Virtual try-on: Provide person image + clothing image
- Scene composition: Place products in realistic environments

Returns:
    JSON with task_id, trace_id, success status, and edited image data
    including image URLs.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sizeNoModel-specific output size or explicit dimensions. Pro supports 1K/1.5K/2K; Lite supports 2K/3K/4K.
imageYesList of image URLs or base64-encoded images to edit. Supports HTTP/HTTPS URLs (publicly accessible) or base64 format (data:image/png;base64,...). Each image must be under 10MB.
modelNoModel to use for editing. Seedream 5.0 Pro, 5.0 Lite, 4.5, and 4.0 all support image editing when images are provided.doubao-seedream-5-0-260128
toolsNoOptional list of tool types for the model to use during editing.
promptYesDescription of the edit to perform on the image(s). Describe what changes you want. Example: 'Change the background to a beach scene', 'Make the person wear a red dress', 'Convert to watercolor painting style'
watermarkNoWhether to add an AI-generated watermark. Default is true.
backgroundNoSeedream 5.0 Pro background mode. transparent requires one PNG input and PNG output.
callback_urlNoOptional webhook URL for async result notification.
output_formatNoOutput image format. 'jpeg' (default) or 'png'.
response_formatNoResponse format. 'url' (default) or 'b64_json'.
optimize_prompt_optionsNoPrompt optimization. Pro supports standard/fast; Lite supports standard.
sequential_image_generationNoGenerate related images based on input. 'auto' enables it.
sequential_image_generation_optionsNoTunable options for grouped image generation.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed5 schema fields changedv0.1.15
    • addedInput schema / properties / background
      Added value: +{
      +  "anyOf": [
      +    {
      +      "enum": [
      +        "transparent",
      +        "opaque"
      +      ],
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Seedream 5.0 Pro background mode. transparent requires one PNG input and PNG output.",
      +  "title": "Background"
      +}
    • changedInput schema / properties / optimize_prompt_options / description
      Previous value: -"Optional prompt optimization configuration."New value: +"Prompt optimization. Pro supports standard/fast; Lite supports standard."
    • changedInput schema / properties / size / anyOf
      Previous value: -[
      -  {
      -    "enum": [
      -      "1K",
      -      "2K",
      -      "3K",
      -      "4K"
      -    ],
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "string"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / size / description
      Previous value: -"Output image resolution. '1K' (default), '2K', '3K', or '4K'."New value: +"Model-specific output size or explicit dimensions. Pro supports 1K/1.5K/2K; Lite supports 2K/3K/4K."
    • removedInput schema / properties / stream
      Removed value: -{
      -  "anyOf": [
      -    {
      -      "type": "boolean"
      -    },
      -    {
      -      "type": "null"
      -    }
      -  ],
      -  "default": null,
      -  "description": "Stream pictures progressively when supported.",
      -  "title": "Stream"
      -}
  2. Changed5 schema fields changedv0.1.14
    • addedInput schema / properties / optimize_prompt_options
      Added value: +{
      +  "anyOf": [
      +    {
      +      "additionalProperties": true,
      +      "type": "object"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Optional prompt optimization configuration.",
      +  "title": "Optimize Prompt Options"
      +}
    • addedInput schema / properties / sequential_image_generation
      Added value: +{
      +  "anyOf": [
      +    {
      +      "enum": [
      +        "auto",
      +        "disabled"
      +      ],
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Generate related images based on input. 'auto' enables it.",
      +  "title": "Sequential Image Generation"
      +}
    • addedInput schema / properties / sequential_image_generation_options
      Added value: +{
      +  "anyOf": [
      +    {
      +      "additionalProperties": true,
      +      "type": "object"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Tunable options for grouped image generation.",
      +  "title": "Sequential Image Generation Options"
      +}
    • addedInput schema / properties / stream
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "boolean"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Stream pictures progressively when supported.",
      +  "title": "Stream"
      +}
    • addedInput schema / properties / tools
      Added value: +{
      +  "anyOf": [
      +    {
      +      "items": {
      +        "const": "web_search",
      +        "type": "string"
      +      },
      +      "type": "array"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Optional list of tool types for the model to use during editing.",
      +  "title": "Tools"
      +}
  3. Changed2 schema fields changedv0.1.11
    • changedInput schema / properties / size / anyOf
      Previous value: -[
      -  {
      -    "enum": [
      -      "1K",
      -      "2K",
      -      "3K",
      -      "4K",
      -      "adaptive"
      -    ],
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "enum": [
      +      "1K",
      +      "2K",
      +      "3K",
      +      "4K"
      +    ],
      +    "type": "string"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / size / description
      Previous value: -"Output image resolution. '1K' (default), '2K', '3K', '4K', or 'adaptive'."New value: +"Output image resolution. '1K' (default), '2K', '3K', or '4K'."
  4. Changed5 schema fields changedv0.1.10
    • removedInput schema / properties / guidance_scale
      Removed value: -{
      -  "anyOf": [
      -    {
      -      "type": "number"
      -    },
      -    {
      -      "type": "null"
      -    }
      -  ],
      -  "default": null,
      -  "description": "Prompt weight — higher values make edits follow the prompt more closely. Range: [1, 10]. Default is 5.5 for doubao-seededit-3-0-i2i. Only works with v3 models.",
      -  "title": "Guidance Scale"
      -}
    • changedInput schema / properties / model / default
      Previous value: -"doubao-seededit-3-0-i2i-250628"New value: +"doubao-seedream-5-0-260128"
    • changedInput schema / properties / model / description
      Previous value: -"Model to use for editing. 'doubao-seededit-3-0-i2i-250628' (dedicated editing model, best for image modification). Other models can also be used for editing when images are provided."New value: +"Model to use for editing. Seedream 5.0 Pro, 5.0 Lite, 4.5, and 4.0 all support image editing when images are provided."
    • changedInput schema / properties / model / enum
      Previous value: -[
      -  "doubao-seedream-5-0-pro-260628",
      -  "doubao-seedream-5-0-260128",
      -  "doubao-seedream-4-5-251128",
      -  "doubao-seedream-4-0-250828",
      -  "doubao-seedream-3-0-t2i-250415",
      -  "doubao-seededit-3-0-i2i-250628"
      -]New value: +[
      +  "doubao-seedream-5-0-pro-260628",
      +  "doubao-seedream-5-0-260128",
      +  "doubao-seedream-4-5-251128",
      +  "doubao-seedream-4-0-250828"
      +]
    • removedInput schema / properties / seed
      Removed value: -{
      -  "anyOf": [
      -    {
      -      "type": "integer"
      -    },
      -    {
      -      "type": "null"
      -    }
      -  ],
      -  "default": null,
      -  "description": "Random seed for reproducible edits. Range: [-1, 2147483647]. Default is -1 (random). Only works with v3 models.",
      -  "title": "Seed"
      -}
  5. Changed1 schema field changedv0.1.9
    • changedInput schema / properties / model / enum
      Previous value: -[
      -  "doubao-seedream-5-0-260128",
      -  "doubao-seedream-5.0-lite",
      -  "doubao-seedream-4-5-251128",
      -  "doubao-seedream-4-0-250828",
      -  "doubao-seedream-3-0-t2i-250415",
      -  "doubao-seededit-3-0-i2i-250628"
      -]New value: +[
      +  "doubao-seedream-5-0-pro-260628",
      +  "doubao-seedream-5-0-260128",
      +  "doubao-seedream-4-5-251128",
      +  "doubao-seedream-4-0-250828",
      +  "doubao-seedream-3-0-t2i-250415",
      +  "doubao-seededit-3-0-i2i-250628"
      +]
  6. Changed1 schema field changedv0.1.8
    • changedInput schema / properties / model / enum
      Previous value: -[
      -  "doubao-seedream-5-0-260128",
      -  "doubao-seedream-4-5-251128",
      -  "doubao-seedream-4-0-250828",
      -  "doubao-seedream-3-0-t2i-250415",
      -  "doubao-seededit-3-0-i2i-250628"
      -]New value: +[
      +  "doubao-seedream-5-0-260128",
      +  "doubao-seedream-5.0-lite",
      +  "doubao-seedream-4-5-251128",
      +  "doubao-seedream-4-0-250828",
      +  "doubao-seedream-3-0-t2i-250415",
      +  "doubao-seededit-3-0-i2i-250628"
      +]
  7. Addedv0.1.5
  8. Removedv0.1.3
  9. First observedv0.1.0

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It states that the tool modifies images, supports single or multiple inputs, and returns a JSON payload with task_id, trace_id, success status, and image URLs, implying an async pattern. It also gives realistic transformation examples that help set expectations, though it doesn't touch on topics like rate limits, authentication, or failure modes.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (overview, 'Use this when', common use cases, returns) and bullet lists that improve scannability. There is some minor redundancy between the opening line and the second paragraph—both state that the tool modifies existing images—but overall it is appropriately sized for a 13-parameter tool and front-loads the core purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with 13 parameters and no annotations, the description provides a solid foundation: it names the operation, gives rich usage context, lists example prompts, and describes the return payload. The 100% schema coverage handles parameter details, and the output schema exists, so return values are already structured. It is not missing critical information, though an explicit pointer to seedream_generate_image for text-to-image would be a small enhancement.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3; the schema already documents all 13 parameters well. The description adds prompt examples and use cases that indirectly inform the prompt parameter, but it doesn't add meaning beyond the schema for parameters like watermark, output_format, or sequential_image_generation. It is neither redundant nor absent, but it doesn't elevate beyond the schema's own documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb and resource: 'Edit or modify existing images using ByteDance's Seedream/SeedEdit model.' It clearly distinguishes itself from the sibling seedream_generate_image by repeatedly emphasizing existing images rather than generation from scratch. The scope is further clarified through concrete examples like style transfer, background change, and virtual try-on.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The 'Use this when' section provides clear contexts: modifying/transforming existing images, changing style/background/colors, applying artistic transformations, virtual try-on, and scene composition. It does not explicitly mention alternatives or when-not-to-use, but the conditions are concrete enough that an agent can route correctly. A minor gap is the lack of an explicit exclusion to seedream_generate_image.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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