mj_fast_upscale_subtle

Technical Specifications of mj-fast-upscale-subtle

What is mj-fast-upscale-subtle?

mj-fast-upscale-subtle is CometAPI’s platform identifier for a Midjourney-oriented image upscaling model that performs a fast subtle upscale on an already generated image. Rather than inventing a noticeably different version, it is designed to enlarge and refine the chosen image while keeping changes to a minimum. (cometapi.com)

In practice, this model fits the stage of an image workflow that comes after image generation or variation selection. You use it when you already have a preferred result and want a cleaner, larger output that stays faithful to the original framing, subject, colors, and overall aesthetic.

Compared with “creative” upscale modes described in Midjourney documentation and ecosystem docs, the “subtle” path is intended for users who want resolution enhancement without introducing stronger reinterpretation or extra stylistic drift.

Main features of mj-fast-upscale-subtle

• Faithful upscaling: Preserves the original image’s appearance as closely as possible, making it suitable when consistency matters more than experimentation.
• Higher-resolution output: Upscales an already selected image so it is better suited for sharing, review, and production use.
• Minimal visual drift: Avoids the larger compositional or detail changes commonly associated with creative upscale options.
• Post-generation workflow fit: Works best after an imagine, vary, or variation step, when a user has already chosen the image they want to enhance.
• Fast delivery path: Positioned as a fast upscale option in CometAPI’s catalog, making it useful for automated pipelines that need quick enhancement of chosen assets. (cometapi.com)
• Commercially usable via CometAPI: CometAPI lists the model as available for commercial use, which is important for production applications and client-facing workflows. (cometapi.com)

How to access and integrate mj-fast-upscale-subtle

Step 1: Sign Up for API Key

Sign up on CometAPI and create your API key from the dashboard. Once you have an active key, you can use it to authenticate requests to the mj-fast-upscale-subtle model through the unified CometAPI interface. CometAPI lists this model in its Midjourney catalog, so you can manage access, billing, and usage from the same platform. (cometapi.com)

Step 2: Send Requests to mj-fast-upscale-subtle API

Send a request to the CometAPI endpoint with model set to mj-fast-upscale-subtle. In your payload, include the required image or task reference fields expected by your Midjourney-style workflow, then authenticate with your CometAPI API key. This model is intended for upscale operations on existing generated images rather than first-pass text-to-image generation. (cometapi.com)

curl --request POST \
  --url https://api.cometapi.com/v1/tasks \
  --header "Authorization: Bearer YOUR_COMETAPI_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "mj-fast-upscale-subtle",
    "input": {
      "task_id": "YOUR_SOURCE_TASK_ID",
      "index": 1
    }
  }'

Step 3: Retrieve and Verify Results

After submission, retrieve the task result from CometAPI and verify that the returned image matches the expected upscale output. For mj-fast-upscale-subtle, validation typically means checking that the image resolution has increased and that the final result remains visually close to the original selected image, with only minimal stylistic deviation.