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🚀 Simple FLUX.2 [Klein] (9B) Starter Workflow - No Custom Nodes! — v1.0 — v1.1

If you are tired of dealing with missing custom nodes, red boxes, and complicated LoRA stacks, this workflow is for you. Designed strictly with 100% Native ComfyUI Nodes, this workflow guarantees a smooth...

Sourcecivitai.com/models/2840107
VersionRelease 3206654 — SimpleFLUX2Klein9BStarter_v11.jsonEstimated VRAMNot yet characterized

Runtime profile

Access
External workflow
Status
Listed
Version
SimpleFLUX2Klein9BStarter_v11.json
Source
Civitai
Updated
Oct 17, 2026

Source description

If you are tired of dealing with missing custom nodes, red boxes, and complicated LoRA stacks, this workflow is for you. Designed strictly with 100% Native ComfyUI Nodes, this workflow guarantees a smooth "plug-and-play" experience right out of the box.

Key Features

Zero Custom Nodes: No need to install extra extensions or troubleshoot dependency errors. It just works.

Dual LoRA Chain: Two LoRAs are concatenated sequentially. You get multi-LoRA support natively, without installing any complex "LoRA Stack" nodes.

Optimized for FLUX.2 [Klein] (9B): Perfectly tuned to get the best performance and quality out of the Klein model.

Beginner-Friendly Layout: Clean, organized, and extremely easy to understand.

What you need

Model files
8.9 GiB known subtotal

Remaining hardware or download-size estimates are not available yet.

Requirements

Models

4

AI-generated commentary

AI-generated explanation based on source and configuration details. Suggestions are clearly labeled.

Purpose

  • Use this ComfyUI workflow to generate and save FLUX.2 Klein 9B images from text prompts, with a base model, text encoder, VAE and LoRA files; its graph includes a SaveImage node.

Flow

  • The graph lists nodes for text encoding, FLUX.2 latent image creation, scheduling, sampling, VAE decoding and image saving.

    Suggestion · not verified

Inputs and outputs

  • The listed graph includes a CLIPTextEncode node for text input and a SaveImage node for image output.

    Suggestion · not verified

Setup

  • The description presents it as a ComfyUI workflow built with native nodes and no custom nodes.

  • The referenced release is v1.1 by Musodacan.

Dependencies

  • The workflow lists these model files: `flux-2-klein-base-9b-fp8.safetensors`, `qwen_3_8b_fp8mixed.safetensors`, `full_encoder_small_decoder.safetensors` and `Your_Lora.safetensors`.

Configuration

  • The description says two LoRAs are chained sequentially.

Cautions

  • No checksum or version pin is listed for `qwen_3_8b_fp8mixed.safetensors` or `Your_Lora.safetensors`; confirm which files you intend to use.

    Suggestion · not verified

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Sources

1 source
CivitaiPrimaryVersion 3206654
civitai.com/models/2840107

Verified Oct 17

Source excerpts

1 excerpt
NoteOct 17civitai.com/models/2840107

Source context: 153 downloads · Type Workflows · Base model Flux.2 Klein 9B