Kroma v0.2 — Krea 2 fine-tune (full model, quantized to ComfyUI formats)
Kroma is a fine-tune of Krea 2 by Lodestone-Rock. This repo contains quantized .safetensors files in various ComfyUI formats of the Kroma model.
Running in ComfyUI
1. Requirements
- A recent ComfyUI with native Krea 2 support (update to the latest master).
- The Krea 2 text encoder and VAE (the diffusion model is this repo — no separate base checkpoint needed).
2. Files to download
Place these in your ComfyUI folders:
| What | Where | Notes |
|---|---|---|
kroma-v0.2-turbo.safetensors |
ComfyUI/models/diffusion_models/ |
this repo |
| Krea 2 text encoder (Qwen3-VL) | ComfyUI/models/text_encoders/ |
load with CLIPLoader type krea2 |
| Krea 2 VAE | ComfyUI/models/vae/ |
3. Sampling settings
The Krea 2 Turbo delta is merged in, so sample with Turbo settings:
| Setting | Value |
|---|---|
| Steps | 8-12 |
| Guidance (CFG) | 1.0 – 1.5 |
| Shift (mu) | 1.15 |
These are the settings the Turbo checkpoint was distilled for; keep them for best results.
4. Workflow
- Load Diffusion Model → select
kroma-v0.2-turbo.safetensors. - Load CLIP → the Krea 2 text encoder, set type to
krea2. - Load VAE → the Krea 2 VAE.
- KSampler → steps / CFG / shift per the table above.
- Prompt and generate.
Minimal node chain:
Load Diffusion Model (kroma-v0.2) ─► KSampler ─► VAE Decode ─► Save Image
Load CLIP (krea2) ─────────────────► (clip) ▲
Load VAE ───────────────────────────────────────┘
Empty Latent / prompt ────────────────────────────►
5. Tips
- If the output looks off, confirm the text encoder is loaded with type
krea2(Krea 2 expects a 12-layer Qwen3-VL stack) and that you're on a current ComfyUI.
Provenance
v0.2 was produced by continued full fine-tuning of the K2 (Krea 2) checkpoint behind Kroma v0.1 — without the rank-256 LoRA delta compression used for the v0.1 release — followed by merging the Krea 2 Turbo delta in as a rank-512 LoRA.
License
MIT — see LICENSE. Note that Krea 2 is governed by its own license; this
fine-tune does not grant any rights to the base weights.