diff --git a/crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen.rs b/crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen.rs
index a29a2ceaf6..9fc9822041 100644
--- a/crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen.rs
+++ b/crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen.rs
@@ -38,6 +38,9 @@ pub struct Seedance1p5ProMultiFunctionVideoGenRequest {
 
   /// Optional.
   pub aspect_ratio: Option<Seedance1p5ProMultiFunctionVideoGenAspectRatio>,
+
+  /// Whether to generate audio.
+  pub generate_audio: Option<bool>,
 }
 
 #[derive(Serialize, Deserialize, ToSchema, Copy, Clone, Debug)]
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_pro.rs
index 96f103b77a..02adc39999 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_pro.rs
@@ -32,7 +32,7 @@ pub(crate) fn estimate_video_cost_artcraft_kling3p0_pro(
   let api_key = fal_client::creds::fal_api_key::FalApiKey::from_str("");
   let args = EnqueueKling3p0ProTextToVideoArgs {
     prompt: String::new(),
-    generate_audio: None,
+    generate_audio: plan.generate_audio,
     negative_prompt: None,
     duration,
     aspect_ratio: None,
@@ -65,6 +65,7 @@ mod tests {
       model: CommonVideoModel::Kling3p0Pro,
       provider: Provider::Artcraft,
       prompt: None,
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -72,6 +73,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: Some(duration_seconds),
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     };
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_standard.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_standard.rs
index ae63683699..74dc69a9e2 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_standard.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_kling3p0_standard.rs
@@ -32,7 +32,7 @@ pub(crate) fn estimate_video_cost_artcraft_kling3p0_standard(
   let api_key = fal_client::creds::fal_api_key::FalApiKey::from_str("");
   let args = EnqueueKling3p0StandardTextToVideoArgs {
     prompt: String::new(),
-    generate_audio: None,
+    generate_audio: plan.generate_audio,
     negative_prompt: None,
     duration,
     aspect_ratio: None,
@@ -65,6 +65,7 @@ mod tests {
       model: CommonVideoModel::Kling3p0Standard,
       provider: Provider::Artcraft,
       prompt: None,
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -72,6 +73,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: Some(duration_seconds),
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     };
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance1p5_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance1p5_pro.rs
index 9f29004924..4fcafae8be 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance1p5_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance1p5_pro.rs
@@ -39,6 +39,7 @@ pub(crate) fn estimate_video_cost_artcraft_seedance1p5_pro(
     duration,
     resolution,
     aspect_ratio: None,
+    generate_audio: plan.generate_audio,
     webhook_url: "https://example.com",
     api_key: &api_key,
   };
@@ -67,6 +68,7 @@ mod tests {
       model: CommonVideoModel::Seedance1p5Pro,
       provider: Provider::Artcraft,
       prompt: None,
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -74,6 +76,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: Some(duration_seconds),
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     };
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance2p0.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance2p0.rs
index 5157a0b489..9c0597eeb4 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance2p0.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/cost/artcraft/estimate_video_cost_artcraft_seedance2p0.rs
@@ -57,6 +57,7 @@ mod tests {
       model: CommonVideoModel::Seedance2p0,
       provider: Provider::Artcraft,
       prompt: None,
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -64,6 +65,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: Some(duration_seconds),
       video_batch_count: Some(video_batch_count),
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     };
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_pro.rs
index ea84236730..60bbf906c5 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_pro.rs
@@ -15,11 +15,11 @@ pub async fn execute_artcraft_kling3p0_pro(
   let request = Kling3p0ProMultiFunctionVideoGenRequest {
     uuid_idempotency_token: plan.idempotency_token.clone(),
     prompt: plan.prompt.map(|p| p.to_string()),
-    negative_prompt: None,
+    negative_prompt: plan.negative_prompt.map(|s| s.to_string()),
     image_media_token: plan.start_frame.map(|t| t.to_owned()),
     end_image_media_token: plan.end_frame.map(|t| t.to_owned()),
     duration: plan.duration,
-    generate_audio: None,
+    generate_audio: plan.generate_audio,
     aspect_ratio: plan.aspect_ratio,
   };
 
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_standard.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_standard.rs
index 0520fc4ba6..fcd5d894ad 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_standard.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_kling3p0_standard.rs
@@ -15,11 +15,11 @@ pub async fn execute_artcraft_kling3p0_standard(
   let request = Kling3p0StandardMultiFunctionVideoGenRequest {
     uuid_idempotency_token: plan.idempotency_token.clone(),
     prompt: plan.prompt.map(|p| p.to_string()),
-    negative_prompt: None,
+    negative_prompt: plan.negative_prompt.map(|s| s.to_string()),
     image_media_token: plan.start_frame.map(|t| t.to_owned()),
     end_image_media_token: plan.end_frame.map(|t| t.to_owned()),
     duration: plan.duration,
-    generate_audio: None,
+    generate_audio: plan.generate_audio,
     aspect_ratio: plan.aspect_ratio,
   };
 
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_seedance1p5_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_seedance1p5_pro.rs
index 727b7dd755..be67049d7c 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_seedance1p5_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/execute/artcraft/generate_video_artcraft_seedance1p5_pro.rs
@@ -20,6 +20,7 @@ pub async fn execute_artcraft_seedance1p5_pro(
     aspect_ratio: plan.aspect_ratio,
     duration: plan.duration,
     resolution: plan.resolution,
+    generate_audio: plan.generate_audio,
   };
 
   let response = seedance_1p5_pro_multi_function_video_gen(
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/generate_video_request.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/generate_video_request.rs
index c7890eee5f..c3f208a792 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/generate_video_request.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/generate_video_request.rs
@@ -22,8 +22,8 @@ pub struct GenerateVideoRequest<'a> {
   /// The prompt for the video generation
   pub prompt: Option<&'a str>,
 
-  // /// Some models support negative prompts
-  // pub negative_prompt: Option<String>,
+  /// Some models support negative prompts
+  pub negative_prompt: Option<&'a str>,
 
   /// Starting keyframe (optional).
   pub start_frame: Option<ImageRef<'a>>,
@@ -46,9 +46,11 @@ pub struct GenerateVideoRequest<'a> {
   /// How many videos to generate.
   pub video_batch_count: Option<u16>,
 
-  // /// Whether to turn on/off audio.
-  // /// Not all models support audio, not all models have a choice.
-  // pub generate_audio: Option<bool>,
+  /// Whether to turn on/off audio.
+  /// Not all models support audio, not all models have a choice.
+  /// Some models will default this to true, others will default it to false,
+  /// so it's best to be explicit.
+  pub generate_audio: Option<bool>,
 
   /// If the request is a mismatch with the (model/provider), how to mitigate it.
   pub request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy,
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_pro.rs
index dc74c8c143..0775c79878 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_pro.rs
@@ -13,10 +13,12 @@ use tokens::tokens::media_files::MediaFileToken;
 #[derive(Debug, Clone)]
 pub struct PlanArtcraftKling3p0Pro<'a> {
   pub prompt: Option<&'a str>,
+  pub negative_prompt: Option<&'a str>,
   pub start_frame: Option<&'a MediaFileToken>,
   pub end_frame: Option<&'a MediaFileToken>,
   pub aspect_ratio: Option<Kling3p0ProMultiFunctionVideoGenAspectRatio>,
   pub duration: Option<Kling3p0ProMultiFunctionVideoGenDuration>,
+  pub generate_audio: Option<bool>,
   pub idempotency_token: String,
 }
 
@@ -33,10 +35,12 @@ pub fn plan_generate_video_artcraft_kling3p0_pro<'a>(
 
   Ok(PlanArtcraftKling3p0Pro {
     prompt: request.prompt,
+    negative_prompt: request.negative_prompt,
     start_frame,
     end_frame,
     aspect_ratio,
     duration,
+    generate_audio: request.generate_audio,
     idempotency_token: request.get_or_generate_idempotency_token(),
   })
 }
@@ -169,6 +173,7 @@ mod tests {
       model: CommonVideoModel::Kling3p0Pro,
       provider: Provider::Artcraft,
       prompt: Some("a cat in space"),
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -176,6 +181,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: None,
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     }
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_standard.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_standard.rs
index 329434bd43..8f8adb3f1b 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_standard.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_kling3p0_standard.rs
@@ -13,10 +13,12 @@ use tokens::tokens::media_files::MediaFileToken;
 #[derive(Debug, Clone)]
 pub struct PlanArtcraftKling3p0Standard<'a> {
   pub prompt: Option<&'a str>,
+  pub negative_prompt: Option<&'a str>,
   pub start_frame: Option<&'a MediaFileToken>,
   pub end_frame: Option<&'a MediaFileToken>,
   pub aspect_ratio: Option<Kling3p0StandardMultiFunctionVideoGenAspectRatio>,
   pub duration: Option<Kling3p0StandardMultiFunctionVideoGenDuration>,
+  pub generate_audio: Option<bool>,
   pub idempotency_token: String,
 }
 
@@ -33,10 +35,12 @@ pub fn plan_generate_video_artcraft_kling3p0_standard<'a>(
 
   Ok(PlanArtcraftKling3p0Standard {
     prompt: request.prompt,
+    negative_prompt: request.negative_prompt,
     start_frame,
     end_frame,
     aspect_ratio,
     duration,
+    generate_audio: request.generate_audio,
     idempotency_token: request.get_or_generate_idempotency_token(),
   })
 }
@@ -169,6 +173,7 @@ mod tests {
       model: CommonVideoModel::Kling3p0Standard,
       provider: Provider::Artcraft,
       prompt: Some("a cat in space"),
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -176,6 +181,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: None,
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     }
diff --git a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_seedance1p5_pro.rs b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_seedance1p5_pro.rs
index bfa3f103d0..de7f375ae0 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_seedance1p5_pro.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/generate/generate_video/plan/artcraft/plan_generate_video_artcraft_seedance1p5_pro.rs
@@ -19,6 +19,7 @@ pub struct PlanArtcraftSeedance1p5Pro<'a> {
   pub aspect_ratio: Option<Seedance1p5ProMultiFunctionVideoGenAspectRatio>,
   pub duration: Option<Seedance1p5ProMultiFunctionVideoGenDuration>,
   pub resolution: Option<Seedance1p5ProMultiFunctionVideoGenResolution>,
+  pub generate_audio: Option<bool>,
   pub idempotency_token: String,
 }
 
@@ -41,6 +42,7 @@ pub fn plan_generate_video_artcraft_seedance1p5_pro<'a>(
     aspect_ratio,
     duration,
     resolution,
+    generate_audio: request.generate_audio,
     idempotency_token: request.get_or_generate_idempotency_token(),
   })
 }
@@ -184,6 +186,7 @@ mod tests {
       model: CommonVideoModel::Seedance1p5Pro,
       provider: Provider::Artcraft,
       prompt: Some("a cat in space"),
+      negative_prompt: None,
       start_frame: None,
       end_frame: None,
       reference_images: None,
@@ -191,6 +194,7 @@ mod tests {
       aspect_ratio: None,
       duration_seconds: None,
       video_batch_count: None,
+      generate_audio: None,
       request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
       idempotency_token: None,
     }
diff --git a/crates/api_clients/artcraft/artcraft_router/src/test_helpers.rs b/crates/api_clients/artcraft/artcraft_router/src/test_helpers.rs
index c105ae9e5c..7768143a4b 100644
--- a/crates/api_clients/artcraft/artcraft_router/src/test_helpers.rs
+++ b/crates/api_clients/artcraft/artcraft_router/src/test_helpers.rs
@@ -214,6 +214,7 @@ pub fn base_video_request() -> GenerateVideoRequest<'static> {
     model: CommonVideoModel::Seedance2p0,
     provider: Provider::Artcraft,
     prompt: Some("a cat in space"),
+    negative_prompt: None,
     start_frame: None,
     end_frame: None,
     reference_images: None,
@@ -221,6 +222,7 @@ pub fn base_video_request() -> GenerateVideoRequest<'static> {
     aspect_ratio: None,
     duration_seconds: None,
     video_batch_count: None,
+    generate_audio: None,
     request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::ErrorOut,
     idempotency_token: None,
   }
diff --git a/crates/api_clients/fal_client/src/requests/webhook/video/image/enqueue_seedance_1p5_pro_image_to_video_webhook.rs b/crates/api_clients/fal_client/src/requests/webhook/video/image/enqueue_seedance_1p5_pro_image_to_video_webhook.rs
index 9d648df4c7..37fa16369d 100644
--- a/crates/api_clients/fal_client/src/requests/webhook/video/image/enqueue_seedance_1p5_pro_image_to_video_webhook.rs
+++ b/crates/api_clients/fal_client/src/requests/webhook/video/image/enqueue_seedance_1p5_pro_image_to_video_webhook.rs
@@ -16,6 +16,7 @@ pub struct EnqueueSeedance1p5ProImageToVideoArgs<'a, R: IntoUrl> {
   pub resolution: Option<EnqueueSeedance1p5ProImageToVideoResolution>,
   pub duration: Option<EnqueueSeedance1p5ProImageToVideoDuration>,
   pub aspect_ratio: Option<EnqueueSeedance1p5ProImageToVideoAspectRatio>,
+  pub generate_audio: Option<bool>,
 
   // Fulfillment
   pub webhook_url: R,
@@ -150,7 +151,7 @@ pub async fn enqueue_seedance_1p5_pro_image_to_video_webhook<R: IntoUrl>(
     camera_fixed: None,
     seed: None,
     enable_safety_checker: Some(false),
-    generate_audio: Some(true),
+    generate_audio: Some(args.generate_audio.unwrap_or(true)),
   };
 
   let result = seedance_1p5_pro_image_to_video(request)
@@ -183,6 +184,7 @@ mod tests {
       duration: Some(EnqueueSeedance1p5ProImageToVideoDuration::FiveSeconds),
       resolution: Some(EnqueueSeedance1p5ProImageToVideoResolution::SevenTwentyP),
       aspect_ratio: None,
+      generate_audio: None,
       webhook_url: "https://example.com/webhook",
     };
 
@@ -220,6 +222,7 @@ mod tests {
       aspect_ratio: Some(EnqueueSeedance1p5ProImageToVideoAspectRatio::SixteenByNine),
       resolution: Some(EnqueueSeedance1p5ProImageToVideoResolution::SevenTwentyP),
       end_image_url: None,
+      generate_audio: None,
       api_key: &api_key,
       webhook_url: "https://example.com/webhook",
     };
@@ -245,6 +248,7 @@ mod tests {
         aspect_ratio: Some(ar),
         resolution: None,
         end_image_url: None,
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
@@ -270,6 +274,7 @@ mod tests {
         aspect_ratio: Some(EnqueueSeedance1p5ProImageToVideoAspectRatio::SixteenByNine),
         resolution: None,
         end_image_url: None,
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
@@ -295,6 +300,7 @@ mod tests {
         aspect_ratio: Some(EnqueueSeedance1p5ProImageToVideoAspectRatio::SixteenByNine),
         resolution: Some(res),
         end_image_url: None,
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
diff --git a/crates/api_clients/fal_client/src/requests/webhook/video/text/enqueue_seedance_1p5_pro_text_to_video_webhook.rs b/crates/api_clients/fal_client/src/requests/webhook/video/text/enqueue_seedance_1p5_pro_text_to_video_webhook.rs
index 6043b7134a..426b947d5c 100644
--- a/crates/api_clients/fal_client/src/requests/webhook/video/text/enqueue_seedance_1p5_pro_text_to_video_webhook.rs
+++ b/crates/api_clients/fal_client/src/requests/webhook/video/text/enqueue_seedance_1p5_pro_text_to_video_webhook.rs
@@ -14,6 +14,7 @@ pub struct EnqueueSeedance1p5ProTextToVideoArgs<'a, R: IntoUrl> {
   pub resolution: Option<EnqueueSeedance1p5ProTextToVideoResolution>,
   pub duration: Option<EnqueueSeedance1p5ProTextToVideoDuration>,
   pub aspect_ratio: Option<EnqueueSeedance1p5ProTextToVideoAspectRatio>,
+  pub generate_audio: Option<bool>,
 
   // Fulfillment
   pub webhook_url: R,
@@ -53,8 +54,10 @@ pub enum EnqueueSeedance1p5ProTextToVideoAspectRatio {
 
 impl <U: IntoUrl> FalRequestCostCalculator for EnqueueSeedance1p5ProTextToVideoArgs<'_, U> {
   fn calculate_cost_in_cents(&self) -> UsdCents {
+    // Fal:
     // "Each 720p 5 second video with audio costs roughly $0.26.
     //  For other resolutions, 1 million video tokens with audio costs $2.4.
+    //  Without audio, the price is 1.2 per million tokens.
     //  tokens(video) = (height x width x FPS x duration) / 1024."
 
     let resolution = self.resolution.unwrap_or(EnqueueSeedance1p5ProTextToVideoResolution::SevenTwentyP);
@@ -146,7 +149,7 @@ pub async fn enqueue_seedance_1p5_pro_text_to_video_webhook<R: IntoUrl>(
     camera_fixed: None,
     seed: None,
     enable_safety_checker: Some(false),
-    generate_audio: Some(true),
+    generate_audio: Some(args.generate_audio.unwrap_or(true)),
   };
 
   let result = seedance_1p5_pro_text_to_video(request)
@@ -176,6 +179,7 @@ mod tests {
       duration: Some(EnqueueSeedance1p5ProTextToVideoDuration::FiveSeconds),
       resolution: Some(EnqueueSeedance1p5ProTextToVideoResolution::SevenTwentyP),
       aspect_ratio: None,
+      generate_audio: None,
       webhook_url: "https://example.com/webhook",
     };
 
@@ -211,6 +215,7 @@ mod tests {
       duration: Some(EnqueueSeedance1p5ProTextToVideoDuration::FiveSeconds),
       aspect_ratio: Some(EnqueueSeedance1p5ProTextToVideoAspectRatio::SixteenByNine),
       resolution: Some(EnqueueSeedance1p5ProTextToVideoResolution::SevenTwentyP),
+      generate_audio: None,
       api_key: &api_key,
       webhook_url: "https://example.com/webhook",
     };
@@ -234,6 +239,7 @@ mod tests {
         duration: Some(EnqueueSeedance1p5ProTextToVideoDuration::FourSeconds),
         aspect_ratio: Some(ar),
         resolution: None,
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
@@ -257,6 +263,7 @@ mod tests {
         duration: Some(dur),
         aspect_ratio: Some(EnqueueSeedance1p5ProTextToVideoAspectRatio::SixteenByNine),
         resolution: None,
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
@@ -280,6 +287,7 @@ mod tests {
         duration: Some(EnqueueSeedance1p5ProTextToVideoDuration::FourSeconds),
         aspect_ratio: Some(EnqueueSeedance1p5ProTextToVideoAspectRatio::SixteenByNine),
         resolution: Some(res),
+        generate_audio: None,
         api_key: &api_key,
         webhook_url: "https://example.com/webhook",
       };
diff --git a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_1p5_pro.rs b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_1p5_pro.rs
index e675e16a62..633a0aaee5 100644
--- a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_1p5_pro.rs
+++ b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_1p5_pro.rs
@@ -32,6 +32,7 @@ pub(super) async fn handle_artcraft_seedance_1p5_pro(
     model: CommonVideoModel::Seedance1p5Pro,
     provider: Provider::Artcraft,
     prompt: request.prompt.as_deref(),
+    negative_prompt: None,
     start_frame,
     end_frame,
     reference_images: None,
@@ -39,6 +40,7 @@ pub(super) async fn handle_artcraft_seedance_1p5_pro(
     aspect_ratio: request.aspect_ratio,
     duration_seconds: request.duration_seconds,
     video_batch_count: request.video_batch_count,
+    generate_audio: None,
     request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::PayMoreUpgrade,
     idempotency_token: None,
   };
diff --git a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_2p0.rs b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_2p0.rs
index 9d78079c71..d0c390ce3d 100644
--- a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_2p0.rs
+++ b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_seedance_2p0.rs
@@ -34,6 +34,7 @@ pub(super) async fn handle_artcraft_seedance_2p0(
     model: CommonVideoModel::Seedance2p0,
     provider: Provider::Artcraft,
     prompt: request.prompt.as_deref(),
+    negative_prompt: None,
     start_frame,
     end_frame,
     reference_images,
@@ -41,6 +42,7 @@ pub(super) async fn handle_artcraft_seedance_2p0(
     aspect_ratio: request.aspect_ratio,
     duration_seconds: request.duration_seconds,
     video_batch_count: request.video_batch_count,
+    generate_audio: None,
     request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::PayMoreUpgrade,
     idempotency_token: None,
   };
diff --git a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_video_via_router.rs b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_video_via_router.rs
index f47bed464d..988598e172 100644
--- a/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_video_via_router.rs
+++ b/crates/desktop/artcraft/src/core/commands/enqueue/image_to_video/artcraft/handle_artcraft_video_via_router.rs
@@ -34,6 +34,7 @@ pub(super) async fn handle_artcraft_video_via_router(
     model,
     provider: Provider::Artcraft,
     prompt: request.prompt.as_deref(),
+    negative_prompt: None,
     start_frame,
     end_frame,
     reference_images: None,
@@ -41,6 +42,7 @@ pub(super) async fn handle_artcraft_video_via_router(
     aspect_ratio: request.aspect_ratio,
     duration_seconds: request.duration_seconds,
     video_batch_count: request.video_batch_count,
+    generate_audio: None,
     request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::PayMoreUpgrade,
     idempotency_token: None,
   };
diff --git a/crates/service/web/storyteller_web/src/http_server/endpoints/generate/cost_estimate/video/estimate_video_cost_handler.rs b/crates/service/web/storyteller_web/src/http_server/endpoints/generate/cost_estimate/video/estimate_video_cost_handler.rs
index 0e227ad4ac..bc723d0700 100644
--- a/crates/service/web/storyteller_web/src/http_server/endpoints/generate/cost_estimate/video/estimate_video_cost_handler.rs
+++ b/crates/service/web/storyteller_web/src/http_server/endpoints/generate/cost_estimate/video/estimate_video_cost_handler.rs
@@ -42,6 +42,7 @@ pub async fn estimate_video_cost_handler(
     model: router_model,
     provider: router_provider,
     prompt: None,
+    negative_prompt: None,
     start_frame: None,
     end_frame: None,
     reference_images: None,
@@ -49,6 +50,7 @@ pub async fn estimate_video_cost_handler(
     aspect_ratio: router_aspect_ratio,
     duration_seconds: request.duration_seconds,
     video_batch_count: request.video_batch_count,
+    generate_audio: None,
     request_mismatch_mitigation_strategy: RequestMismatchMitigationStrategy::PayLessDowngrade,
     idempotency_token: None,
   };
diff --git a/crates/service/web/storyteller_web/src/http_server/endpoints/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen_handler.rs b/crates/service/web/storyteller_web/src/http_server/endpoints/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen_handler.rs
index 974f54c456..2c7afa20e6 100644
--- a/crates/service/web/storyteller_web/src/http_server/endpoints/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen_handler.rs
+++ b/crates/service/web/storyteller_web/src/http_server/endpoints/generate/video/multi_function/seedance_1p5_pro_multi_function_video_gen_handler.rs
@@ -220,6 +220,7 @@ pub async fn seedance_1p5_pro_multi_function_video_gen_handler(
       duration: Some(duration),
       aspect_ratio: Some(aspect_ratio),
       resolution: Some(resolution),
+      generate_audio: request.generate_audio,
       webhook_url: &server_state.fal.webhook_url,
       api_key: &server_state.fal.api_key,
     };
@@ -254,6 +255,7 @@ pub async fn seedance_1p5_pro_multi_function_video_gen_handler(
       duration: Some(duration),
       aspect_ratio: Some(aspect_ratio),
       resolution: Some(resolution),
+      generate_audio: request.generate_audio,
       webhook_url: &server_state.fal.webhook_url,
       api_key: &server_state.fal.api_key,
     };