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Flux.1 Schnell — 4-Step Fast

Explore a four-step Flux.1 Schnell text-to-image graph with separate model loaders.

Download workflow JSON ↓Read setup instructions
Catalog illustration for Flux.1 Schnell — 4-Step Fast; not a verified workflow output
Catalog illustration. The source does not include evidence tying this image to a run of this JSON.

What it produces

Explore a four-step Flux.1 Schnell text-to-image graph with separate model loaders.

HARDWARE & SETTINGS

ESTIMATED 8 GB VRAM

This is a catalog estimate, not a tested minimum. GPU architecture, precision, resolution and offloading affect whether a run fits.

Output settings
See graph settings below
Workflow version
v1.0
System RAM
Not documented
Test hardware
No recorded run
Generation time
Not measured
Peak memory
Not measured
Read the compatibility policy →

HARDWARE INTELLIGENCE LAYER

Will this run on my GPU?

Evaluate evidence-backed execution feasibility for your specific hardware.

ESTIMATED - 8GB documentedConfidence: LOW

Estimated from Documented Requirements

Documented requirement: 8GB VRAM. Not execution-tested on the selected hardware; some model downloads were deferred.

CLOSEST EVIDENCE

No execution record recorded locally for this workflow yet.

MEASURED RUNTIME SPECS

Run metrics not available. Displaying catalog estimates only.

Execution history (0)

Success applies to the recorded settings. Failure is an outcome; STANDARD and OPTIMIZED describe execution settings. Historical runs without that distinction remain unclassified.

No recorded executions.

No comparable cross-GPU executions. Timing comparisons require matching workflow, inputs, model hashes, settings, software, precision and timing protocol.

Models & custom nodes

These model filenames are extracted from the downloadable graph, including subgraphs. Check each source’s license and access requirements.

ae.safetensors ↗ComfyUI/models/vae/
clip_l.safetensors ↗ComfyUI/models/text_encoders/
t5xxl_fp16.safetensors ↗ComfyUI/models/text_encoders/
flux1-schnell.safetensors ↗ComfyUI/models/diffusion_models/

Custom nodes

The graph uses ComfyUI core nodes. Use a recent ComfyUI version that includes these node types.

Standard ComfyUI graph.

Custom node setup guide →

Installation & first run

  1. Install ComfyUI using the official requirements and installation documentation for your operating system and GPU.
  2. Download this workflow JSON. Use the listed model sources above and place the required files in the indicated model folders. Model folder guide →
  3. Load the JSON in ComfyUI. Resolve missing nodes and select installed model files in the loader nodes. Supply any required input image, video or audio.
  4. Review the graph’s settings before running. See the settings extracted below; a recorded test only establishes the specific configuration used in that run.
  5. Run the workflow and check the ComfyUI console if it fails. Keep the exact error text, software versions and your hardware details for troubleshooting.

Example prompt from the catalog

Aerial view of a futuristic city at golden hour, neon signs, flying vehicles, ultra detailed

This prompt is a starting point, not evidence that the preview was produced by this workflow.

Explore the workflow

When a run fails

Missing model or a model name is not available

Compare the graph’s loader file names with your installed files and the dependency list. Check model folders →

Missing or unrecognized node type

Record the exact node type and check its source and version before installing extensions. Custom node guide →

GPU memory or execution error

The VRAM estimate is not a guarantee. Record the error, input dimensions, model precision and batch size. GPU error guide → · Workflow error guide →

Graph settings & required inputs

No Load Image input file is required by this graph.

View the graph’s saved controls
KSampler · node 31
[167447334682596,"randomize",4,1,"euler","simple",1]

Testing & source information

No completed run is recorded for this entry. Graph checks do not establish successful generation. GPU test hardware, measured runtime, peak memory and supported software versions remain unverified.

Catalog version: v1.0. Original publication date is not recorded.

Graph source: flux_schnell_full_text_to_image.json ↗. Upstream license

What a complete test record includes →

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