ComfyUI

You can read a missing socket as the error and complete a graph from checkpoint to image.

1. 1ComfyUI is a dataflow graphYou can apply this in a live incident: Every input socket on the path must be filled or nothing runs.12m30xp
2. 2Latents are not pixelsYou can apply this in a live incident: A latent is a compressed tensor.12m30xp
3. 3CLIP text encodeYou can apply this in a live incident: CLIP encodes text into conditioning.12m30xp
4. 4KSamplerYou can apply this in a live incident: Steps are how far the sampler walks the noise schedule.12m30xp
5. 5SeedsYou can apply this in a live incident: A seed selects a noise start.12m30xp
6. 6VAE encode and decodeYou can apply this in a live incident: VAE Encode compresses pixels to a latent.12m30xp
7. 7Checkpoints versus LoRAsYou can apply this in a live incident: A checkpoint is a full set of weights.12m30xp
8. 8Conditioning combineYou can apply this in a live incident: Conditioning Combine mixes two conditionings.12m30xp
9. 9Upscale after decodeYou can apply this in a live incident: Pixel upscalers run on images, after decode.12m30xp
10. 10Batch sizeYou can apply this in a live incident: Batch size lives on the empty latent (or equivalent).12m30xp

You can control composition instead of rolling the dice.

1. 1Denoise strengthYou can apply this in a live incident: Denoise 0 keeps the input; 1 starts from pure noise.12m30xp
2. 2ControlNetYou can apply this in a live incident: ControlNet conditions the sampler on a spatial hint.12m30xp
3. 3IP-Adapter for styleYou can apply this in a live incident: IP-Adapter takes an image embedding, not a filename in the prompt.12m30xp
4. 4InpaintYou can apply this in a live incident: The mask selects the region to change.12m30xp
5. 5Custom nodesYou can apply this in a live incident: A workflow JSON names node types.12m30xp

You can set latent size, CLIP skip and schedulers without mixing model families.

1. 1Empty Latent ImageYou can apply this in a live incident: Empty Latent Image sets width, height and batch for txt2img.12m30xp
2. 2CLIP skipYou can apply this in a live incident: CLIP skip drops the last N text-encoder layers.12m30xp
3. 3Schedulers versus samplersYou can apply this in a live incident: The sampler is the integrator; the scheduler is the noise timetable.12m30xp
4. 4Noise scheduleYou can apply this in a live incident: The schedule maps step index to remaining noise.12m30xp
5. 5CFG and rescaleYou can apply this in a live incident: CFG scales the gap between conditional and unconditional predictions.12m30xp
6. 6Prompt weightingYou can apply this in a live incident: SD1.5-style (word:1.2) weights are CLIP tokenizer tricks in some nodes.12m30xp
7. 7VAE baked versus separateYou can apply this in a live incident: Some checkpoints include a VAE; others need Load VAE.12m30xp
8. 8SD1.5 versus SDXL versus FluxYou can apply this in a live incident: SD1.5, SDXL and Flux families have different UNET and text-encoder graphs.12m30xp
9. 9Dual CLIP and T5 (operator level)You can apply this in a live incident: SDXL uses two CLIP encoders (G and L).12m30xp
10. 10KSampler (Advanced)You can apply this in a live incident: Advanced sampler exposes add_noise, start_step and return leftover noise.12m30xp
11. 11Save Image versus PreviewYou can apply this in a live incident: Preview Image is for the session UI.12m30xp
12. 12Batch versus queueYou can apply this in a live incident: Batch is simultaneous tensors on the GPU.12m30xp

You can load LoRAs, embeddings and ControlNets with strengths that match the recipe.

1. 1LoRA stackYou can apply this in a live incident: LoRA loaders apply a residual on model and optionally CLIP.12m30xp
2. 2Embeddings and textual inversionYou can apply this in a live incident: Textual inversion embeddings live in the embeddings folder.12m30xp
3. 3Model folder layoutYou can apply this in a live incident: checkpoints, loras, vae, controlnet, embeddings, upscale_models are separate directories.12m30xp
4. 4ControlNet strength, start and endYou can apply this in a live incident: Strength is how hard the hint binds.12m30xp
5. 5IP-Adapter Plus versus FaceIDYou can apply this in a live incident: IP-Adapter Plus is a general image prompt.12m30xp
6. 6Latent compositeYou can apply this in a live incident: LatentComposite blends latents before or between sampling passes.12m30xp
7. 7Area compositionYou can apply this in a live incident: Area composition applies conditioning to a spatial region of the latent.12m30xp
8. 8Masks: grow, blur, invertYou can apply this in a live incident: Latent inpaint masks are coarse at VAE scale.12m30xp
9. 9AnimateDiff and video combineYou can apply this in a live incident: AnimateDiff injects a motion module into the UNET path.12m30xp
10. 10Upscale models versus latent upscaleYou can apply this in a live incident: ESRGAN-style models upscale pixels after decode.12m30xp
11. 11FreeU and token merging (operator)You can apply this in a live incident: FreeU reweights skip connections for a quality trade.12m30xp

You can survive Manager updates, VRAM limits and graph hygiene.

1. 1ComfyUI-ManagerYou can apply this in a live incident: Manager installs and updates custom nodes and some models.12m30xp
2. 2Custom node update breakageYou can apply this in a live incident: Workflow JSON stores class_type strings.12m30xp
3. 3VRAM: attention and tiled VAEYou can apply this in a live incident: Attention backends (xformers, pytorch, sage) change VRAM and speed.12m30xp
4. 4Reroute, groups and subgraphsYou can apply this in a live incident: Reroute is a wire, not a compute node.12m30xp
5. 5Primitive widgetsYou can apply this in a live incident: Primitives feed values into widgets via links.12m30xp
6. 6Seed control nodesYou can apply this in a live incident: There can be more than one seed in a graph (noise, sampler, control).12m30xp
7. 7Load Image and batch foldersYou can apply this in a live incident: Load Image is one file; batch loaders iterate a directory.12m30xp
8. 8CLIP VisionYou can apply this in a live incident: CLIP Vision encodes images for unCLIP and some adapters.12m30xp
9. 9ModelSampling patchesYou can apply this in a live incident: Some families need a ModelSampling node to set the noise regime.12m30xp
10. 10Queue, history and extra optionsYou can apply this in a live incident: Save the workflow JSON explicitly for recovery.12m30xp
11. 11Preprocessor matchYou can apply this in a live incident: Each ControlNet expects a matching hint: canny, depth, pose, lineart.12m30xp
12. 12Two-pass hiresYou can apply this in a live incident: Hires is typically upscale then a low denoise second sample.12m30xp

You can finish stills and video without losing colour, seed or node versions.

1. 1Colour fix after VAEYou can apply this in a live incident: VAE decode colour space can disagree with display.12m30xp
2. 2Wildcards and dynamic promptsYou can apply this in a live incident: Wildcard nodes sample lines from text files.12m30xp
3. 3Pixel composite and pasteYou can apply this in a live incident: ImageComposite / paste operates on decoded pixels.12m30xp
4. 4Face / object detailer (high level)You can apply this in a live incident: Detailer nodes detect, mask, and inpaint a region at a chosen denoise.12m30xp
5. 5Installing models via ManagerYou can apply this in a live incident: Manager can fetch some models to the correct folder.12m30xp
6. 6extra_model_paths.yamlYou can apply this in a live incident: extra_model_paths.yaml points loaders at shared directories.12m30xp
7. 7Workflow metadata in PNGsYou can apply this in a live incident: ComfyUI can embed workflow JSON in saved PNGs.12m30xp

You can finish a picture without starting over from noise.

1. 1Latent versus pixel upscaleYou can apply this in a live incident: Latent upscale runs on latents.12m30xp
2. 2CLIP Vision versus CLIP TextYou can apply this in a live incident: CLIP Vision encodes an image into a visual embedding.12m30xp
3. 3Stacking ControlNetsYou can apply this in a live incident: Multiple ControlNets mix.12m30xp
4. 4Queue is not retryYou can apply this in a live incident: Each queue is another job.12m30xp

You can lock seeds, tiles and queues so a recipe survives another machine.

1. 1Tiled diffusion (operator)You can apply this in a live incident: Tiled diffusion samples patches to fit VRAM.12m30xp
2. 2Preview method (TAESD vs VAE)You can apply this in a live incident: Fast previews use a tiny decoder that is not the final VAE.12m30xp
3. 3VRAM mode and CPU offloadYou can apply this in a live incident: ComfyUI VRAM modes trade speed for offload.12m30xp
4. 4Type mismatches on linksYou can apply this in a live incident: Sockets are typed: MODEL, CLIP, VAE, LATENT, IMAGE, MASK, CONDITIONING.12m30xp
5. 5Bypass versus muteYou can apply this in a live incident: Bypass typically passes through compatible sockets.12m30xp
6. 6Queue front and cancelYou can apply this in a live incident: Cancel often stops the running prompt, not always every queued job.12m30xp
7. 7SDXL refiner passYou can apply this in a live incident: SDXL refiner is a second checkpoint for the end of the schedule.12m30xp
8. 8Inpaint checkpointsYou can apply this in a live incident: Inpaint checkpoints are trained with masked latents.12m30xp
9. 9Batch seedsYou can apply this in a live incident: Some noise nodes add seed+index per batch item.12m30xp
10. 10ControlNetApplyAdvancedYou can apply this in a live incident: Advanced apply can send different strengths to positive and negative.12m30xp
11. 11Separate model and CLIP LoRA strengthYou can apply this in a live incident: Many loaders expose model_strength and clip_strength.12m30xp
12. 12Filename prefix and dateYou can apply this in a live incident: Prefix plus counter names files.12m30xp
13. 13Quantised UNET loaders (operator)You can apply this in a live incident: Quantised UNET loaders exist for low VRAM.12m30xp