Krea Base

Krea Base is a ComfyUI workflow for generating Krea 2 images from a text prompt, model selection, and LoRAs; it outputs an image with generation metadata and can optionally upscale it or send it to Civitai.

The graph loads a model, text encoder, and VAE, applies selected LoRAs, encodes the prompt, and samples an image.

An optional path upscales the first-pass image with RealESRGAN_x2plus.pth; another can send the pre-upscale image to a Civitai post.

Inputs include a positive prompt, model, text encoder, VAE, and LoRAs; controls include image size, batch size, seed, steps, CFG, sampler, scheduler, and denoise.

The graph outputs an image and generation metadata; the save node offers file format and metadata or workflow embedding options.

Using the Civitai post option requires an API key, configured with a civitai_key.txt file in the ComfyUI-civitai-mcp folder or the CIVITAI_API_KEY environment variable.

Model files named for the workflow include krea2_turbo_nvfp4.safetensors, qwen_3_4b.safetensors, ae.safetensors, and RealESRGAN_x2plus.pth.

The workflow uses these custom node packs: comfy-image-saver, comfyui-image-saver, comfyui-kjnodes, comfyui-lora-manager, and ComfyUI-nhknodes.

The sampler starts with a 2048x2048 size preset, batch size 1, 8 steps, CFG 1, Euler sampler, beta scheduler, and a randomized seed; these controls can be changed.

Upscaling and Civitai posting have separate enable controls; the post controls label disabled publishing as a draft.

Check the model filenames before running: the loader values show qwen3vl_4b_fp8_scaled.safetensors and qwen_image_vae.safetensors, while the model files named for the workflow include qwen_3_4b.safetensors and ae.safetensors.

If you use Civitai posting, review the image and post details before publishing; the workflow includes a publish toggle and draft mode.

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