import gradio as gr from modules import sd_models, sd_vae, errors, extras, call_queue from modules.ui_components import FormRow from modules.ui_common import create_refresh_button def update_interp_description(value): interp_description_css = "

{}

" interp_descriptions = { "No interpolation": interp_description_css.format("No interpolation will be used. Requires one model; A. Allows for format conversion and VAE baking."), "Weighted sum": interp_description_css.format("A weighted sum will be used for interpolation. Requires two models; A and B. The result is calculated as A * (1 - M) + B * M"), "Add difference": interp_description_css.format("The difference between the last two models will be added to the first. Requires three models; A, B and C. The result is calculated as A + (B - C) * M") } return interp_descriptions[value] def modelmerger(*args): try: results = extras.run_modelmerger(*args) except Exception as e: errors.report("Error loading/saving model file", exc_info=True) sd_models.list_models() # to remove the potentially missing models from the list return [*[gr.Dropdown.update(choices=sd_models.checkpoint_tiles()) for _ in range(4)], f"Error merging checkpoints: {e}"] return results class UiCheckpointMerger: def __init__(self): with gr.Blocks(analytics_enabled=False) as modelmerger_interface: with gr.Row().style(equal_height=False): with gr.Column(variant='compact'): self.interp_description = gr.HTML(value=update_interp_description("Weighted sum"), elem_id="modelmerger_interp_description") with FormRow(elem_id="modelmerger_models"): self.primary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_primary_model_name", label="Primary model (A)") create_refresh_button(self.primary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_A") self.secondary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_secondary_model_name", label="Secondary model (B)") create_refresh_button(self.secondary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_B") self.tertiary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_tertiary_model_name", label="Tertiary model (C)") create_refresh_button(self.tertiary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_C") self.custom_name = gr.Textbox(label="Custom Name (Optional)", elem_id="modelmerger_custom_name") self.interp_amount = gr.Slider(minimum=0.0, maximum=1.0, step=0.05, label='Multiplier (M) - set to 0 to get model A', value=0.3, elem_id="modelmerger_interp_amount") self.interp_method = gr.Radio(choices=["No interpolation", "Weighted sum", "Add difference"], value="Weighted sum", label="Interpolation Method", elem_id="modelmerger_interp_method") self.interp_method.change(fn=update_interp_description, inputs=[self.interp_method], outputs=[self.interp_description]) with FormRow(): self.checkpoint_format = gr.Radio(choices=["ckpt", "safetensors"], value="safetensors", label="Checkpoint format", elem_id="modelmerger_checkpoint_format") self.save_as_half = gr.Checkbox(value=False, label="Save as float16", elem_id="modelmerger_save_as_half") with FormRow(): with gr.Column(): self.config_source = gr.Radio(choices=["A, B or C", "B", "C", "Don't"], value="A, B or C", label="Copy config from", type="index", elem_id="modelmerger_config_method") with gr.Column(): with FormRow(): self.bake_in_vae = gr.Dropdown(choices=["None"] + list(sd_vae.vae_dict), value="None", label="Bake in VAE", elem_id="modelmerger_bake_in_vae") create_refresh_button(self.bake_in_vae, sd_vae.refresh_vae_list, lambda: {"choices": ["None"] + list(sd_vae.vae_dict)}, "modelmerger_refresh_bake_in_vae") with FormRow(): self.discard_weights = gr.Textbox(value="", label="Discard weights with matching name", elem_id="modelmerger_discard_weights") with gr.Accordion("Metadata", open=False) as metadata_editor: with FormRow(): self.save_metadata = gr.Checkbox(value=True, label="Save metadata", elem_id="modelmerger_save_metadata") self.add_merge_recipe = gr.Checkbox(value=True, label="Add merge recipe metadata", elem_id="modelmerger_add_recipe") self.copy_metadata_fields = gr.Checkbox(value=True, label="Copy metadata from merged models", elem_id="modelmerger_copy_metadata") self.metadata_json = gr.TextArea('{}', label="Metadata in JSON format") self.read_metadata = gr.Button("Read metadata from selected checkpoints") with FormRow(): self.modelmerger_merge = gr.Button(elem_id="modelmerger_merge", value="Merge", variant='primary') with gr.Column(variant='compact', elem_id="modelmerger_results_container"): with gr.Group(elem_id="modelmerger_results_panel"): self.modelmerger_result = gr.HTML(elem_id="modelmerger_result", show_label=False) self.metadata_editor = metadata_editor self.blocks = modelmerger_interface def setup_ui(self, dummy_component, sd_model_checkpoint_component): self.checkpoint_format.change(lambda fmt: gr.update(visible=fmt == 'safetensors'), inputs=[self.checkpoint_format], outputs=[self.metadata_editor], show_progress=False) self.read_metadata.click(extras.read_metadata, inputs=[self.primary_model_name, self.secondary_model_name, self.tertiary_model_name], outputs=[self.metadata_json]) self.modelmerger_merge.click(fn=lambda: '', inputs=[], outputs=[self.modelmerger_result]) self.modelmerger_merge.click( fn=call_queue.wrap_gradio_gpu_call(modelmerger, extra_outputs=lambda: [gr.update() for _ in range(4)]), _js='modelmerger', inputs=[ dummy_component, self.primary_model_name, self.secondary_model_name, self.tertiary_model_name, self.interp_method, self.interp_amount, self.save_as_half, self.custom_name, self.checkpoint_format, self.config_source, self.bake_in_vae, self.discard_weights, self.save_metadata, self.add_merge_recipe, self.copy_metadata_fields, self.metadata_json, ], outputs=[ self.primary_model_name, self.secondary_model_name, self.tertiary_model_name, sd_model_checkpoint_component, self.modelmerger_result, ] ) # Required as a workaround for change() event not triggering when loading values from ui-config.json self.interp_description.value = update_interp_description(self.interp_method.value)