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| job: extension | |
| config: | |
| # this name will be the folder and filename name | |
| name: "my_first_flex_redux_finetune_v1" | |
| process: | |
| - type: 'sd_trainer' | |
| # root folder to save training sessions/samples/weights | |
| training_folder: "output" | |
| # uncomment to see performance stats in the terminal every N steps | |
| # performance_log_every: 1000 | |
| device: cuda:0 | |
| adapter: | |
| type: "redux" | |
| # you can finetune an existing adapter or start from scratch. Set to null to start from scratch | |
| name_or_path: '/local/path/to/redux_adapter_to_finetune.safetensors' | |
| # name_or_path: null | |
| # image_encoder_path: 'google/siglip-so400m-patch14-384' # Flux.1 redux adapter | |
| image_encoder_path: 'google/siglip2-so400m-patch16-512' # Flex.1 512 redux adapter | |
| # image_encoder_arch: 'siglip' # for Flux.1 | |
| image_encoder_arch: 'siglip2' | |
| # You need a control input for each sample. Best to do squares for both images | |
| test_img_path: | |
| - "/path/to/x_01.jpg" | |
| - "/path/to/x_02.jpg" | |
| - "/path/to/x_03.jpg" | |
| - "/path/to/x_04.jpg" | |
| - "/path/to/x_05.jpg" | |
| - "/path/to/x_06.jpg" | |
| - "/path/to/x_07.jpg" | |
| - "/path/to/x_08.jpg" | |
| - "/path/to/x_09.jpg" | |
| - "/path/to/x_10.jpg" | |
| clip_layer: 'last_hidden_state' | |
| train: true | |
| save: | |
| dtype: bf16 # precision to save | |
| save_every: 250 # save every this many steps | |
| max_step_saves_to_keep: 4 | |
| datasets: | |
| # datasets are a folder of images. captions need to be txt files with the same name as the image | |
| # for instance image2.jpg and image2.txt. Only jpg, jpeg, and png are supported currently | |
| # images will automatically be resized and bucketed into the resolution specified | |
| # on windows, escape back slashes with another backslash so | |
| # "C:\\path\\to\\images\\folder" | |
| - folder_path: "/path/to/images/folder" | |
| # clip_image_path is directory containting your control images. They must have filename as their train image. (extension does not matter) | |
| # for normal redux, we are just recreating the same image, so you can use the same folder path above | |
| clip_image_path: "/path/to/control/images/folder" | |
| caption_ext: "txt" | |
| caption_dropout_rate: 0.05 # will drop out the caption 5% of time | |
| resolution: [ 512, 768, 1024 ] # flex enjoys multiple resolutions | |
| train: | |
| # this is what I used for the 24GB card, but feel free to adjust | |
| # total batch size is 6 here | |
| batch_size: 3 | |
| gradient_accumulation: 2 | |
| # captions are not needed for this training, we cache a blank proompt and rely on the vision encoder | |
| unload_text_encoder: true | |
| loss_type: "mse" | |
| train_unet: true | |
| train_text_encoder: false | |
| steps: 4000000 # I set this very high and stop when I like the results | |
| content_or_style: balanced # content, style, balanced | |
| gradient_checkpointing: true | |
| noise_scheduler: "flowmatch" # or "ddpm", "lms", "euler_a" | |
| timestep_type: "flux_shift" | |
| optimizer: "adamw8bit" | |
| lr: 1e-4 | |
| # this is for Flex.1, comment this out for FLUX.1-dev | |
| bypass_guidance_embedding: true | |
| dtype: bf16 | |
| ema_config: | |
| use_ema: true | |
| ema_decay: 0.99 | |
| model: | |
| name_or_path: "ostris/Flex.1-alpha" | |
| is_flux: true | |
| quantize: true | |
| text_encoder_bits: 8 | |
| sample: | |
| sampler: "flowmatch" # must match train.noise_scheduler | |
| sample_every: 250 # sample every this many steps | |
| width: 1024 | |
| height: 1024 | |
| # I leave half blank to test prompt and unprompted | |
| prompts: | |
| - "woman with red hair, playing chess at the park, bomb going off in the background" | |
| - "a woman holding a coffee cup, in a beanie, sitting at a cafe" | |
| - "a horse is a DJ at a night club, fish eye lens, smoke machine, lazer lights, holding a martini" | |
| - "a man showing off his cool new t shirt at the beach, a shark is jumping out of the water in the background" | |
| - "a bear building a log cabin in the snow covered mountains" | |
| - "" | |
| - "" | |
| - "" | |
| - "" | |
| - "" | |
| neg: "" | |
| seed: 42 | |
| walk_seed: true | |
| guidance_scale: 4 | |
| sample_steps: 25 | |
| network_multiplier: 1.0 | |
| # you can add any additional meta info here. [name] is replaced with config name at top | |
| meta: | |
| name: "[name]" | |
| version: '1.0' | |