diff --git a/api/onnx_web/chain/blend_img2img.py b/api/onnx_web/chain/blend_img2img.py
index a9acf181..bf423e64 100644
--- a/api/onnx_web/chain/blend_img2img.py
+++ b/api/onnx_web/chain/blend_img2img.py
@@ -38,7 +38,6 @@ def blend_img2img(
         params.scheduler,
         job.get_device(),
         params.lpw,
-        params.inversion,
     )
     if params.lpw:
         logger.debug("using LPW pipeline for img2img")
diff --git a/api/onnx_web/chain/blend_inpaint.py b/api/onnx_web/chain/blend_inpaint.py
index d1ba2fa3..4220364c 100644
--- a/api/onnx_web/chain/blend_inpaint.py
+++ b/api/onnx_web/chain/blend_inpaint.py
@@ -76,7 +76,6 @@ def blend_inpaint(
             params.scheduler,
             job.get_device(),
             params.lpw,
-            params.inversion,
         )
 
         if params.lpw:
diff --git a/api/onnx_web/chain/source_txt2img.py b/api/onnx_web/chain/source_txt2img.py
index 331e087f..08d411f6 100644
--- a/api/onnx_web/chain/source_txt2img.py
+++ b/api/onnx_web/chain/source_txt2img.py
@@ -44,7 +44,6 @@ def source_txt2img(
         params.scheduler,
         job.get_device(),
         params.lpw,
-        params.inversion,
     )
 
     if params.lpw:
diff --git a/api/onnx_web/chain/upscale_outpaint.py b/api/onnx_web/chain/upscale_outpaint.py
index dafbbe91..39167bc1 100644
--- a/api/onnx_web/chain/upscale_outpaint.py
+++ b/api/onnx_web/chain/upscale_outpaint.py
@@ -80,7 +80,6 @@ def upscale_outpaint(
             params.scheduler,
             job.get_device(),
             params.lpw,
-            params.inversion,
         )
         if params.lpw:
             logger.debug("using LPW pipeline for inpaint")
diff --git a/api/onnx_web/output.py b/api/onnx_web/output.py
index 399154b1..39fd3ad4 100644
--- a/api/onnx_web/output.py
+++ b/api/onnx_web/output.py
@@ -79,7 +79,6 @@ def make_output_name(
     hash_value(sha, params.lpw)
     hash_value(sha, params.eta)
     hash_value(sha, params.batch)
-    hash_value(sha, params.inversion)
     hash_value(sha, size.width)
     hash_value(sha, size.height)
 
diff --git a/api/onnx_web/params.py b/api/onnx_web/params.py
index b8f3cf74..4ed9e8fe 100644
--- a/api/onnx_web/params.py
+++ b/api/onnx_web/params.py
@@ -164,7 +164,6 @@ class ImageParams:
         lpw: bool = False,
         eta: float = 0.0,
         batch: int = 1,
-        inversion: Optional[str] = None,
     ) -> None:
         self.model = model
         self.scheduler = scheduler
@@ -176,7 +175,6 @@ class ImageParams:
         self.lpw = lpw or False
         self.eta = eta
         self.batch = batch
-        self.inversion = inversion
 
     def tojson(self) -> Dict[str, Optional[Param]]:
         return {
@@ -190,7 +188,6 @@ class ImageParams:
             "lpw": self.lpw,
             "eta": self.eta,
             "batch": self.batch,
-            "inversion": self.inversion,
         }
 
     def with_args(self, **kwargs):
@@ -205,7 +202,6 @@ class ImageParams:
             kwargs.get("lpw", self.lpw),
             kwargs.get("eta", self.eta),
             kwargs.get("batch", self.batch),
-            kwargs.get("inversion", self.inversion),
         )
 
 
diff --git a/api/onnx_web/server/params.py b/api/onnx_web/server/params.py
index 6797177d..3f7586bd 100644
--- a/api/onnx_web/server/params.py
+++ b/api/onnx_web/server/params.py
@@ -44,11 +44,6 @@ def pipeline_from_request(
     if scheduler is None:
         scheduler = get_config_value("scheduler")
 
-    inversion = request.args.get("inversion", None)
-    inversion_path = None
-    if inversion is not None and inversion.strip() != "":
-        inversion_path = get_model_path(context, inversion)
-
     # image params
     prompt = get_not_empty(request.args, "prompt", get_config_value("prompt"))
     negative_prompt = request.args.get("negativePrompt", None)
@@ -129,7 +124,6 @@ def pipeline_from_request(
         lpw=lpw,
         negative_prompt=negative_prompt,
         batch=batch,
-        inversion=inversion_path,
     )
     size = Size(width, height)
     return (device, params, size)
diff --git a/gui/src/client/api.ts b/gui/src/client/api.ts
index c220c2db..d2d7c579 100644
--- a/gui/src/client/api.ts
+++ b/gui/src/client/api.ts
@@ -32,8 +32,6 @@ export interface ModelParams {
    * Use the long prompt weighting pipeline.
    */
   lpw: boolean;
-
-  inversion: string;
 }
 
 /**
@@ -383,7 +381,6 @@ export function appendModelToURL(url: URL, params: ModelParams) {
   url.searchParams.append('upscaling', params.upscaling);
   url.searchParams.append('correction', params.correction);
   url.searchParams.append('lpw', String(params.lpw));
-  url.searchParams.append('inversion', params.inversion);
 }
 
 /**
diff --git a/gui/src/state.ts b/gui/src/state.ts
index 39f9123b..931b3363 100644
--- a/gui/src/state.ts
+++ b/gui/src/state.ts
@@ -469,7 +469,6 @@ export function createStateSlices(server: ServerParams) {
       platform: server.platform.default,
       upscaling: server.upscaling.default,
       correction: server.correction.default,
-      inversion: server.inversion.default,
       lpw: false,
     },
     setModel(params) {