diff --git a/packages/shared/src/contracts/model3d/image-to-model/Model3dImageToModelRequest.ts b/packages/shared/src/contracts/model3d/image-to-model/Model3dImageToModelRequest.ts
index 3c140c820..5f0d9e56d 100644
--- a/packages/shared/src/contracts/model3d/image-to-model/Model3dImageToModelRequest.ts
+++ b/packages/shared/src/contracts/model3d/image-to-model/Model3dImageToModelRequest.ts
@@ -10,24 +10,24 @@ import type { Model3dTextureVersion } from '../common/Model3dTextureVersion';
 
 export type Model3dImageToModelRequest = {
   input: string;
-  model: Model3dModelVersion | null;
-  enableImageAutofix: boolean | null;
-  modelSeed: number | null;
-  textureSeed: number | null;
-  texture: boolean | null;
-  pbr: boolean | null;
-  textureQuality: Model3dTextureQuality | null;
-  textureVersion: Model3dTextureVersion | null;
-  delight: boolean | null;
-  textureAlignment: Model3dTextureAlignment | null;
-  geometryQuality: Model3dGeometryQuality | null;
-  faceLimit: number | null;
-  autoSize: boolean | null;
-  orientation: Model3dInputOrientation | null;
-  quad: boolean | null;
-  smartLowPoly: boolean | null;
-  generateParts: boolean | null;
-  compress: Model3dCompression | null;
-  exportUv: boolean | null;
-  exportOrientation: Model3dExportOrientation | null;
+  model?: Model3dModelVersion | null;
+  enableImageAutofix?: boolean | null;
+  modelSeed?: number | null;
+  textureSeed?: number | null;
+  texture?: boolean | null;
+  pbr?: boolean | null;
+  textureQuality?: Model3dTextureQuality | null;
+  textureVersion?: Model3dTextureVersion | null;
+  delight?: boolean | null;
+  textureAlignment?: Model3dTextureAlignment | null;
+  geometryQuality?: Model3dGeometryQuality | null;
+  faceLimit?: number | null;
+  autoSize?: boolean | null;
+  orientation?: Model3dInputOrientation | null;
+  quad?: boolean | null;
+  smartLowPoly?: boolean | null;
+  generateParts?: boolean | null;
+  compress?: Model3dCompression | null;
+  exportUv?: boolean | null;
+  exportOrientation?: Model3dExportOrientation | null;
 };
diff --git a/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewInputs.ts b/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewInputs.ts
index d5d145b9a..a3159a264 100644
--- a/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewInputs.ts
+++ b/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewInputs.ts
@@ -4,8 +4,8 @@ export type Model3dMultiviewInputs =
   | {
       kind: 'views';
       front: string;
-      left: string | null;
-      back: string | null;
-      right: string | null;
+      left?: string | null;
+      back?: string | null;
+      right?: string | null;
     }
   | { kind: 'taskId'; taskId: string };
diff --git a/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewToModelRequest.ts b/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewToModelRequest.ts
index 62efeddc9..1d44e7796 100644
--- a/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewToModelRequest.ts
+++ b/packages/shared/src/contracts/model3d/multiview-to-model/Model3dMultiviewToModelRequest.ts
@@ -11,23 +11,23 @@ import type { Model3dMultiviewInputs } from './Model3dMultiviewInputs';
 
 export type Model3dMultiviewToModelRequest = {
   inputs: Model3dMultiviewInputs;
-  model: Model3dModelVersion | null;
-  modelSeed: number | null;
-  textureSeed: number | null;
-  texture: boolean | null;
-  pbr: boolean | null;
-  textureQuality: Model3dTextureQuality | null;
-  textureVersion: Model3dTextureVersion | null;
-  delight: boolean | null;
-  geometryQuality: Model3dGeometryQuality | null;
-  textureAlignment: Model3dTextureAlignment | null;
-  faceLimit: number | null;
-  autoSize: boolean | null;
-  orientation: Model3dInputOrientation | null;
-  quad: boolean | null;
-  smartLowPoly: boolean | null;
-  generateParts: boolean | null;
-  compress: Model3dCompression | null;
-  exportUv: boolean | null;
-  exportOrientation: Model3dExportOrientation | null;
+  model?: Model3dModelVersion | null;
+  modelSeed?: number | null;
+  textureSeed?: number | null;
+  texture?: boolean | null;
+  pbr?: boolean | null;
+  textureQuality?: Model3dTextureQuality | null;
+  textureVersion?: Model3dTextureVersion | null;
+  delight?: boolean | null;
+  geometryQuality?: Model3dGeometryQuality | null;
+  textureAlignment?: Model3dTextureAlignment | null;
+  faceLimit?: number | null;
+  autoSize?: boolean | null;
+  orientation?: Model3dInputOrientation | null;
+  quad?: boolean | null;
+  smartLowPoly?: boolean | null;
+  generateParts?: boolean | null;
+  compress?: Model3dCompression | null;
+  exportUv?: boolean | null;
+  exportOrientation?: Model3dExportOrientation | null;
 };
diff --git a/packages/shared/src/contracts/model3d/text-to-model/Model3dTextToModelRequest.ts b/packages/shared/src/contracts/model3d/text-to-model/Model3dTextToModelRequest.ts
index f576d2990..d1e6633b0 100644
--- a/packages/shared/src/contracts/model3d/text-to-model/Model3dTextToModelRequest.ts
+++ b/packages/shared/src/contracts/model3d/text-to-model/Model3dTextToModelRequest.ts
@@ -8,23 +8,23 @@ import type { Model3dTextureVersion } from '../common/Model3dTextureVersion';
 
 export type Model3dTextToModelRequest = {
   prompt: string;
-  model: Model3dModelVersion | null;
-  negativePrompt: string | null;
-  imageSeed: number | null;
-  modelSeed: number | null;
-  textureSeed: number | null;
-  texture: boolean | null;
-  pbr: boolean | null;
-  textureQuality: Model3dTextureQuality | null;
-  textureVersion: Model3dTextureVersion | null;
-  delight: boolean | null;
-  geometryQuality: Model3dGeometryQuality | null;
-  faceLimit: number | null;
-  autoSize: boolean | null;
-  quad: boolean | null;
-  smartLowPoly: boolean | null;
-  generateParts: boolean | null;
-  compress: Model3dCompression | null;
-  exportUv: boolean | null;
-  exportOrientation: Model3dExportOrientation | null;
+  model?: Model3dModelVersion | null;
+  negativePrompt?: string | null;
+  imageSeed?: number | null;
+  modelSeed?: number | null;
+  textureSeed?: number | null;
+  texture?: boolean | null;
+  pbr?: boolean | null;
+  textureQuality?: Model3dTextureQuality | null;
+  textureVersion?: Model3dTextureVersion | null;
+  delight?: boolean | null;
+  geometryQuality?: Model3dGeometryQuality | null;
+  faceLimit?: number | null;
+  autoSize?: boolean | null;
+  quad?: boolean | null;
+  smartLowPoly?: boolean | null;
+  generateParts?: boolean | null;
+  compress?: Model3dCompression | null;
+  exportUv?: boolean | null;
+  exportOrientation?: Model3dExportOrientation | null;
 };
diff --git a/server-rs/crates/shared-contracts/src/model3d/image_to_model/request.rs b/server-rs/crates/shared-contracts/src/model3d/image_to_model/request.rs
index 4698f1ad0..4b5e15892 100644
--- a/server-rs/crates/shared-contracts/src/model3d/image_to_model/request.rs
+++ b/server-rs/crates/shared-contracts/src/model3d/image_to_model/request.rs
@@ -13,27 +13,47 @@ use super::MODEL3D_TS_EXPORT_DIR;
 #[ts(export, export_to = MODEL3D_TS_EXPORT_DIR)]
 pub struct Model3dImageToModelRequest {
     pub input: String,
+    #[ts(optional = nullable)]
     pub model: Option<Model3dModelVersion>,
+    #[ts(optional = nullable)]
     pub enable_image_autofix: Option<bool>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub model_seed: Option<i64>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub texture_seed: Option<i64>,
+    #[ts(optional = nullable)]
     pub texture: Option<bool>,
+    #[ts(optional = nullable)]
     pub pbr: Option<bool>,
+    #[ts(optional = nullable)]
     pub texture_quality: Option<Model3dTextureQuality>,
+    #[ts(optional = nullable)]
     pub texture_version: Option<Model3dTextureVersion>,
+    #[ts(optional = nullable)]
     pub delight: Option<bool>,
+    #[ts(optional = nullable)]
     pub texture_alignment: Option<Model3dTextureAlignment>,
+    #[ts(optional = nullable)]
     pub geometry_quality: Option<Model3dGeometryQuality>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub face_limit: Option<i64>,
+    #[ts(optional = nullable)]
     pub auto_size: Option<bool>,
+    #[ts(optional = nullable)]
     pub orientation: Option<Model3dInputOrientation>,
+    #[ts(optional = nullable)]
     pub quad: Option<bool>,
+    #[ts(optional = nullable)]
     pub smart_low_poly: Option<bool>,
+    #[ts(optional = nullable)]
     pub generate_parts: Option<bool>,
+    #[ts(optional = nullable)]
     pub compress: Option<Model3dCompression>,
+    #[ts(optional = nullable)]
     pub export_uv: Option<bool>,
+    #[ts(optional = nullable)]
     pub export_orientation: Option<Model3dExportOrientation>,
 }
diff --git a/server-rs/crates/shared-contracts/src/model3d/multiview_to_model/request.rs b/server-rs/crates/shared-contracts/src/model3d/multiview_to_model/request.rs
index ef7c0a330..958a0eda7 100644
--- a/server-rs/crates/shared-contracts/src/model3d/multiview_to_model/request.rs
+++ b/server-rs/crates/shared-contracts/src/model3d/multiview_to_model/request.rs
@@ -14,8 +14,11 @@ use super::MODEL3D_TS_EXPORT_DIR;
 pub enum Model3dMultiviewInputs {
     Views {
         front: String,
+        #[ts(optional = nullable)]
         left: Option<String>,
+        #[ts(optional = nullable)]
         back: Option<String>,
+        #[ts(optional = nullable)]
         right: Option<String>,
     },
     TaskId {
@@ -30,26 +33,45 @@ pub enum Model3dMultiviewInputs {
 #[ts(export, export_to = MODEL3D_TS_EXPORT_DIR)]
 pub struct Model3dMultiviewToModelRequest {
     pub inputs: Model3dMultiviewInputs,
+    #[ts(optional = nullable)]
     pub model: Option<Model3dModelVersion>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub model_seed: Option<i64>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub texture_seed: Option<i64>,
+    #[ts(optional = nullable)]
     pub texture: Option<bool>,
+    #[ts(optional = nullable)]
     pub pbr: Option<bool>,
+    #[ts(optional = nullable)]
     pub texture_quality: Option<Model3dTextureQuality>,
+    #[ts(optional = nullable)]
     pub texture_version: Option<Model3dTextureVersion>,
+    #[ts(optional = nullable)]
     pub delight: Option<bool>,
+    #[ts(optional = nullable)]
     pub geometry_quality: Option<Model3dGeometryQuality>,
+    #[ts(optional = nullable)]
     pub texture_alignment: Option<Model3dTextureAlignment>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub face_limit: Option<i64>,
+    #[ts(optional = nullable)]
     pub auto_size: Option<bool>,
+    #[ts(optional = nullable)]
     pub orientation: Option<Model3dInputOrientation>,
+    #[ts(optional = nullable)]
     pub quad: Option<bool>,
+    #[ts(optional = nullable)]
     pub smart_low_poly: Option<bool>,
+    #[ts(optional = nullable)]
     pub generate_parts: Option<bool>,
+    #[ts(optional = nullable)]
     pub compress: Option<Model3dCompression>,
+    #[ts(optional = nullable)]
     pub export_uv: Option<bool>,
+    #[ts(optional = nullable)]
     pub export_orientation: Option<Model3dExportOrientation>,
 }
diff --git a/server-rs/crates/shared-contracts/src/model3d/text_to_model/request.rs b/server-rs/crates/shared-contracts/src/model3d/text_to_model/request.rs
index 76f9ed78d..62a690e3b 100644
--- a/server-rs/crates/shared-contracts/src/model3d/text_to_model/request.rs
+++ b/server-rs/crates/shared-contracts/src/model3d/text_to_model/request.rs
@@ -12,27 +12,46 @@ use crate::model3d::common::{
 #[ts(export, export_to = MODEL3D_TS_EXPORT_DIR)]
 pub struct Model3dTextToModelRequest {
     pub prompt: String,
+    #[ts(optional = nullable)]
     pub model: Option<Model3dModelVersion>,
+    #[ts(optional = nullable)]
     pub negative_prompt: Option<String>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub image_seed: Option<i64>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub model_seed: Option<i64>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub texture_seed: Option<i64>,
+    #[ts(optional = nullable)]
     pub texture: Option<bool>,
+    #[ts(optional = nullable)]
     pub pbr: Option<bool>,
+    #[ts(optional = nullable)]
     pub texture_quality: Option<Model3dTextureQuality>,
+    #[ts(optional = nullable)]
     pub texture_version: Option<Model3dTextureVersion>,
+    #[ts(optional = nullable)]
     pub delight: Option<bool>,
+    #[ts(optional = nullable)]
     pub geometry_quality: Option<Model3dGeometryQuality>,
     #[ts(type = "number | null")]
+    #[ts(optional = nullable)]
     pub face_limit: Option<i64>,
+    #[ts(optional = nullable)]
     pub auto_size: Option<bool>,
+    #[ts(optional = nullable)]
     pub quad: Option<bool>,
+    #[ts(optional = nullable)]
     pub smart_low_poly: Option<bool>,
+    #[ts(optional = nullable)]
     pub generate_parts: Option<bool>,
+    #[ts(optional = nullable)]
     pub compress: Option<Model3dCompression>,
+    #[ts(optional = nullable)]
     pub export_uv: Option<bool>,
+    #[ts(optional = nullable)]
     pub export_orientation: Option<Model3dExportOrientation>,
 }