[`PEFT` / `LoRA` ] Fix text encoder scaling (#5204)

* move text encoder changes

* fix

* add comment.

* fix tests

* Update src/diffusers/utils/peft_utils.py

---------
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

src/diffusers/models/lora.py

@@ -19,16 +19,13 @@ import torch.nn.functional as F
 from torch import nn
 
 from ..loaders import PatchedLoraProjection, text_encoder_attn_modules, text_encoder_mlp_modules
-from ..utils import logging, scale_lora_layers
+from ..utils import logging
 
 
 logger = logging.get_logger(__name__)  # pylint: disable=invalid-name
 
 
-def adjust_lora_scale_text_encoder(text_encoder, lora_scale: float = 1.0, use_peft_backend: bool = False):
-    if use_peft_backend:
-        scale_lora_layers(text_encoder, weight=lora_scale)
-    else:
+def adjust_lora_scale_text_encoder(text_encoder, lora_scale: float = 1.0):
     for _, attn_module in text_encoder_attn_modules(text_encoder):
         if isinstance(attn_module.q_proj, PatchedLoraProjection):
             attn_module.q_proj.lora_scale = lora_scale

src/diffusers/pipelines/alt_diffusion/pipeline_alt_diffusion.py

@@ -25,7 +25,7 @@ from ...loaders import LoraLoaderMixin, TextualInversionLoaderMixin
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import deprecate, logging, replace_example_docstring
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker
@@ -304,7 +304,10 @@ class AltDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, LoraL
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -429,6 +432,10 @@ class AltDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, LoraL
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     def run_safety_checker(self, image, device, dtype):

src/diffusers/pipelines/alt_diffusion/pipeline_alt_diffusion_img2img.py

@@ -27,7 +27,14 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import PIL_INTERPOLATION, deprecate, logging, replace_example_docstring
+from ...utils import (
+    PIL_INTERPOLATION,
+    deprecate,
+    logging,
+    replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
+)
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker
@@ -302,7 +309,10 @@ class AltDiffusionImg2ImgPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -427,6 +437,10 @@ class AltDiffusionImg2ImgPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     def run_safety_checker(self, image, device, dtype):

src/diffusers/pipelines/controlnet/pipeline_controlnet.py

@@ -27,11 +27,7 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AutoencoderKL, ControlNetModel, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    deprecate,
-    logging,
-    replace_example_docstring,
-)
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from ..stable_diffusion.pipeline_output import StableDiffusionPipelineOutput
@@ -291,7 +287,10 @@ class StableDiffusionControlNetPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -416,6 +415,10 @@ class StableDiffusionControlNetPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/controlnet/pipeline_controlnet_img2img.py

@@ -30,6 +30,8 @@ from ...utils import (
     deprecate,
     logging,
     replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
 )
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
@@ -315,7 +317,10 @@ class StableDiffusionControlNetImg2ImgPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -440,6 +445,10 @@ class StableDiffusionControlNetImg2ImgPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/controlnet/pipeline_controlnet_inpaint.py

@@ -28,11 +28,7 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AutoencoderKL, ControlNetModel, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    deprecate,
-    logging,
-    replace_example_docstring,
-)
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from ..stable_diffusion import StableDiffusionPipelineOutput
@@ -442,7 +438,10 @@ class StableDiffusionControlNetInpaintPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -567,6 +566,10 @@ class StableDiffusionControlNetInpaintPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/controlnet/pipeline_controlnet_inpaint_sd_xl.py

@@ -36,6 +36,8 @@ from ...utils import (
     is_invisible_watermark_available,
     logging,
     replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
 )
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
@@ -314,8 +316,12 @@ class StableDiffusionXLControlNetInpaintPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
-            adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+                adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
+                scale_lora_layers(self.text_encoder_2, lora_scale)
 
         prompt = [prompt] if isinstance(prompt, str) else prompt
 
@@ -452,6 +458,11 @@ class StableDiffusionXLControlNetInpaintPipeline(
                 bs_embed * num_images_per_prompt, -1
             )
 
+        if isinstance(self, StableDiffusionXLLoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+            unscale_lora_layers(self.text_encoder_2)
+
         return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs

src/diffusers/pipelines/controlnet/pipeline_controlnet_sd_xl.py

@@ -35,10 +35,7 @@ from ...models.attention_processor import (
 )
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    logging,
-    replace_example_docstring,
-)
+from ...utils import logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from ..stable_diffusion_xl.pipeline_output import StableDiffusionXLPipelineOutput
@@ -288,8 +285,12 @@ class StableDiffusionXLControlNetPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
-            adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+                adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
+                scale_lora_layers(self.text_encoder_2, lora_scale)
 
         prompt = [prompt] if isinstance(prompt, str) else prompt
 
@@ -426,6 +427,11 @@ class StableDiffusionXLControlNetPipeline(
                 bs_embed * num_images_per_prompt, -1
             )
 
+        if isinstance(self, StableDiffusionXLLoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+            unscale_lora_layers(self.text_encoder_2)
+
         return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs

src/diffusers/pipelines/controlnet/pipeline_controlnet_sd_xl_img2img.py

@@ -38,6 +38,8 @@ from ...schedulers import KarrasDiffusionSchedulers
 from ...utils import (
     logging,
     replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
 )
 from ...utils.torch_utils import is_compiled_module, randn_tensor
 from ..pipeline_utils import DiffusionPipeline
@@ -326,8 +328,12 @@ class StableDiffusionXLControlNetImg2ImgPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
-            adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+                adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
+                scale_lora_layers(self.text_encoder_2, lora_scale)
 
         prompt = [prompt] if isinstance(prompt, str) else prompt
 
@@ -464,6 +470,11 @@ class StableDiffusionXLControlNetImg2ImgPipeline(
                 bs_embed * num_images_per_prompt, -1
             )
 
+        if isinstance(self, StableDiffusionXLLoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+            unscale_lora_layers(self.text_encoder_2)
+
         return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs

src/diffusers/pipelines/stable_diffusion/pipeline_cycle_diffusion.py

@@ -27,7 +27,7 @@ from ...loaders import LoraLoaderMixin, TextualInversionLoaderMixin
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import DDIMScheduler
-from ...utils import PIL_INTERPOLATION, deprecate, logging
+from ...utils import PIL_INTERPOLATION, deprecate, logging, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from .pipeline_output import StableDiffusionPipelineOutput
@@ -308,7 +308,10 @@ class CycleDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, Lor
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -433,6 +436,10 @@ class CycleDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, Lor
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.StableDiffusionImg2ImgPipeline.check_inputs

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py

@@ -25,11 +25,7 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    deprecate,
-    logging,
-    replace_example_docstring,
-)
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from .pipeline_output import StableDiffusionPipelineOutput
@@ -301,7 +297,10 @@ class StableDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, Lo
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -426,6 +425,10 @@ class StableDiffusionPipeline(DiffusionPipeline, TextualInversionLoaderMixin, Lo
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     def run_safety_checker(self, image, device, dtype):

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_attend_and_excite.py

@@ -27,7 +27,7 @@ from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.attention_processor import Attention
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import deprecate, logging, replace_example_docstring
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -332,7 +332,10 @@ class StableDiffusionAttendAndExcitePipeline(DiffusionPipeline, TextualInversion
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -457,6 +460,10 @@ class StableDiffusionAttendAndExcitePipeline(DiffusionPipeline, TextualInversion
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py

@@ -28,7 +28,7 @@ from ...loaders import LoraLoaderMixin, TextualInversionLoaderMixin
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import PIL_INTERPOLATION, deprecate, logging
+from ...utils import PIL_INTERPOLATION, deprecate, logging, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput
 
@@ -213,7 +213,10 @@ class StableDiffusionDepth2ImgPipeline(DiffusionPipeline, TextualInversionLoader
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -338,6 +341,10 @@ class StableDiffusionDepth2ImgPipeline(DiffusionPipeline, TextualInversionLoader
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_diffedit.py

@@ -34,6 +34,8 @@ from ...utils import (
     deprecate,
     logging,
     replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
 )
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
@@ -481,7 +483,10 @@ class StableDiffusionDiffEditPipeline(DiffusionPipeline, TextualInversionLoaderM
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -606,6 +611,10 @@ class StableDiffusionDiffEditPipeline(DiffusionPipeline, TextualInversionLoaderM
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_gligen.py

@@ -26,11 +26,7 @@ from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.attention import GatedSelfAttentionDense
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    deprecate,
-    logging,
-    replace_example_docstring,
-)
+from ...utils import deprecate, logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -278,7 +274,10 @@ class StableDiffusionGLIGENPipeline(DiffusionPipeline):
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -403,6 +402,10 @@ class StableDiffusionGLIGENPipeline(DiffusionPipeline):
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_gligen_text_image.py

@@ -32,10 +32,7 @@ from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.attention import GatedSelfAttentionDense
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import (
-    logging,
-    replace_example_docstring,
-)
+from ...utils import logging, replace_example_docstring, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -309,7 +306,10 @@ class StableDiffusionGLIGENTextImagePipeline(DiffusionPipeline):
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -434,6 +434,10 @@ class StableDiffusionGLIGENTextImagePipeline(DiffusionPipeline):
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py

@@ -32,6 +32,8 @@ from ...utils import (
     deprecate,
     logging,
     replace_example_docstring,
+    scale_lora_layers,
+    unscale_lora_layers,
 )
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
@@ -302,7 +304,10 @@ class StableDiffusionImg2ImgPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -427,6 +432,10 @@ class StableDiffusionImg2ImgPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint.py

@@ -27,7 +27,7 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AsymmetricAutoencoderKL, AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import deprecate, logging
+from ...utils import deprecate, logging, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -375,7 +375,10 @@ class StableDiffusionInpaintPipeline(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -500,6 +503,10 @@ class StableDiffusionInpaintPipeline(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint_legacy.py

@@ -27,7 +27,7 @@ from ...loaders import FromSingleFileMixin, LoraLoaderMixin, TextualInversionLoa
 from ...models import AutoencoderKL, UNet2DConditionModel
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import KarrasDiffusionSchedulers
-from ...utils import PIL_INTERPOLATION, deprecate, logging
+from ...utils import PIL_INTERPOLATION, deprecate, logging, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -297,7 +297,10 @@ class StableDiffusionInpaintPipelineLegacy(
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -422,6 +425,10 @@ class StableDiffusionInpaintPipelineLegacy(
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_k_diffusion.py

@@ -24,7 +24,7 @@ from ...image_processor import VaeImageProcessor
 from ...loaders import LoraLoaderMixin, TextualInversionLoaderMixin
 from ...models.lora import adjust_lora_scale_text_encoder
 from ...schedulers import LMSDiscreteScheduler
-from ...utils import deprecate, logging
+from ...utils import deprecate, logging, scale_lora_layers, unscale_lora_layers
 from ...utils.torch_utils import randn_tensor
 from ..pipeline_utils import DiffusionPipeline
 from . import StableDiffusionPipelineOutput
@@ -211,7 +211,10 @@ class StableDiffusionKDiffusionPipeline(DiffusionPipeline, TextualInversionLoade
             self._lora_scale = lora_scale
 
             # dynamically adjust the LoRA scale
-            adjust_lora_scale_text_encoder(self.text_encoder, lora_scale, self.use_peft_backend)
+            if not self.use_peft_backend:
+                adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
+            else:
+                scale_lora_layers(self.text_encoder, lora_scale)
 
         if prompt is not None and isinstance(prompt, str):
             batch_size = 1
@@ -336,6 +339,10 @@ class StableDiffusionKDiffusionPipeline(DiffusionPipeline, TextualInversionLoade
             negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
             negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
 
+        if isinstance(self, LoraLoaderMixin) and self.use_peft_backend:
+            # Retrieve the original scale by scaling back the LoRA layers
+            unscale_lora_layers(self.text_encoder)
+
         return prompt_embeds, negative_prompt_embeds
 
     # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker