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Model guide

CoCo identifies each model’s architecture from the file contents; nothing needs to be set by hand. When you choose a model of a different architecture, steps, CFG and sampler switch to that architecture’s recommended values (see Steps, CFG and samplers).

Architecture Notes Details
SDXL family Illustrious, NoobAI (including V-Pred), Pony, Animagine and others SDXL family
Anima An anime-focused architecture Anima
FLUX.2 klein (4B, 9B) Fast; also supports edit by instruction FLUX
FLUX.1 (dev, schnell, Kontext) Kontext supports edit by instruction FLUX
Z-Image Other architectures
Krea 2 (Turbo) Turbo version only Other architectures
Qwen Image 2.1 Can render text; also supports edit by instruction Other architectures
SD 1.5 Loads, but hasn’t been fully tested Other architectures
  • Single file: SDXL and SD 1.5 models are one complete file that goes in checkpoints. The VAE is included.
  • Split: for the other architectures, the main model, VAE and text encoder are separate files. The main model goes in diffusion_models; the VAE and text encoder go in vae and text_encoders.

The VAE and text encoder each architecture needs:

Architecture VAE Text encoder
Anima qwen_image_vae qwen_3_06b_base
Z-Image ae qwen_3_4b
Krea 2 qwen_image_vae qwen3vl_4b_fp8_scaled
Qwen Image 2.1 qwen_image_2.1_vae_bf16 qwen3vl_8b_int8_convrot
FLUX.2 klein 4B flux2-vae qwen_3_4b
FLUX.2 klein 9B flux2-vae qwen_3_8b_fp8mixed
FLUX.1 ae t5xxl_fp16 (or the fp8 version), plus clip_l

All of these can be downloaded under “VAE and text encoders” in ⚙ Settings → Resource folders → Download models; files you already have are shown by name.

  • When no VAE or encoder is chosen in the generate panel, CoCo finds matching files in the asset library automatically (see Asset library).
  • A text encoder can be swapped for a different precision of the same model (bf16, fp8, int8), but not for a different model.
  • Z-Image works only with ae, and Qwen Image 2.1 only with its own VAE.
Feature SDXL Anima Z-Image Krea 2 Qwen Image 2.1 FLUX.2 klein FLUX.1
Generate, LoRA ✓ ✓ ✓ ✓ ✓ ✓ ✓
Whole image, inpaint, face fix, upscale, outpaint ✓ ✓ ✓ ✓ ✓ ✓ ✓
Reference images (ControlNet) ✓
Edit by instruction ✓ ✓ Kontext
LoRA training ✓ ✓

CoCo doesn’t ship with generation models. Every model (including community fine-tunes) has its own licence; check it on the model’s page before use. The licences of some common models:

Model Licence
Anima CircleStone Labs Non-Commercial License: the model itself may not be used commercially; generated images are unrestricted
Qwen Image 2.1 Qwen Research License: non-commercial only
FLUX.2 klein 4B Apache 2.0
FLUX.2 klein 9B Non-commercial licence
FLUX.1 dev, Kontext Non-commercial licence