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Image Generation

Create images from text prompts or edit existing images inside your workflow.

Image Generation

What does it do?

The Image Generation node creates a new image from a text prompt, or edits an existing image. Think of it like a creative studio assistant that turns your brief into ready-to-use visual content.

It is useful for marketing banners, product mockups, campaign visuals, and branded concepts.

Smart features

  • Automatic model routing: Diaflow chooses the right image engine based on the model you select.

  • Text-to-image and image editing in one node: start from a written prompt, or add one or more reference images.

  • Safe fallbacks for image shape: if the selected image ratio is not supported, Diaflow falls back to a default ratio.

  • Automatic image count guardrails: if you request too few or too many images, Diaflow adjusts the number to a supported range.

  • Built-in storage after generation: generated images are saved in your workspace so later steps can reuse them.

  • Prompt and input mapping from earlier nodes: you can pull text and image inputs directly from previous workflow steps.

Real-World Business Value

  • Create product marketing visuals from a campaign brief without waiting for manual design drafts.

  • Generate multiple ad concepts from one product description for faster approval cycles.

  • Edit an existing image to match a new season, offer, or brand direction without starting over.

Step-by-Step Setup

  • In Model, choose the image model you want to use.

  • In Prompt, describe the image clearly, including subject, style, colors, setting, and composition.

  • In Image source, add an image from an earlier step only if you want to edit or blend existing visuals.

  • In Aspect ratio, select the format that matches where the image will be used, such as 1:1 for square posts or 16:9 for banners.

  • If your selected model supports it, choose the Image size or Resolution you want.

  • If your selected model supports it, set Number of images to the number of variations you want.

  • Run the workflow and review the generated file in the Output tab.

The Transformation: Before & After

Before simple campaign brief

After generated image result

The output is a stored file reference from your workspace. Use that result in later nodes when you need the generated image.

Tips & Warnings for First-Timers

Best practices

  • Write specific prompts. Mention the subject, style, lighting, color palette, and layout.

  • Choose Aspect ratio based on the final destination, such as social, email, ads, or web banners.

  • Use Image source when you want edits, restyling, or blended visuals.

  • Start with one image first. Increase the number only after you confirm the style is right.

  • If you need larger output options, choose a model that supports them.

Warnings

  • Do not expect every model to support the same settings. Some models only create one image per run.

  • Do not assume a larger size setting will always apply. Some models ignore higher size choices.

  • Do not request too many images in one step unless you really need them. Large batches can take much longer.

  • Do not assume the node will always return the exact number of images requested. Some models may return fewer variations.

  • Do not use unsupported or broken image files in Image source. If Diaflow cannot read the file, the run will fail.

  • Do not leave Prompt vague or empty. Weak prompts usually lead to weak results or failed runs.

  • Do not assume the output is a ready-to-share public image link. The result is a stored file reference for use inside your workflow.

  • Do not rely on accidental uploaded files being used as image input. If you want to edit an image, set Image source explicitly.

  • Do not use prompts that break model content rules. The image may be blocked.

  • Do not expect repeated runs with the same prompt to behave the same across all models. Some models may reuse earlier results, while others generate again every time.

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