shouldn't be impacting

crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/mod.rs

@@ -1,5 +1,6 @@
 pub mod kling_2_5_turbo_multi_function_video_gen;
 pub mod kling_2_6_multi_function_video_gen;
+pub mod seedance_2p0_multi_function_video_gen;
 pub mod sora_2_multi_function_video_gen;
 pub mod sora_2_pro_multi_function_video_gen;
 pub mod veo_3p1_fast_multi_function_video_gen;

crates/api_clients/artcraft/artcraft_api_defs/src/generate/video/multi_function/seedance_2p0_multi_function_video_gen.rs

@@ -0,0 +1,68 @@
+use serde::{Deserialize, Serialize};
+use tokens::tokens::generic_inference_jobs::InferenceJobToken;
+use tokens::tokens::media_files::MediaFileToken;
+use utoipa::ToSchema;
+
+pub const SEEDANCE_2P0_MULTI_FUNCTION_VIDEO_GEN_PATH: &str = "/v1/generate/video/multi_function/seedance_2p0";
+
+/// Seedance 2.0 multi-function video generation (text-to-video, image-to-video, and reference-based).
+#[derive(Serialize, Deserialize, ToSchema)]
+pub struct Seedance2p0MultiFunctionVideoGenRequest {
+  /// Idempotency token to prevent duplicate requests.
+  pub uuid_idempotency_token: String,
+
+  /// Text prompt.
+  pub prompt: Option<String>,
+
+  /// Optional start frame image.
+  pub start_frame_media_token: Option<MediaFileToken>,
+
+  /// Optional end frame image.
+  pub end_frame_media_token: Option<MediaFileToken>,
+
+  /// Optional reference images (reference mode). When present, takes priority over start/end frames.
+  pub reference_image_media_tokens: Option<Vec<MediaFileToken>>,
+
+  /// Video aspect ratio / resolution.
+  pub aspect_ratio: Option<Seedance2p0AspectRatio>,
+
+  /// Duration in seconds (4–15).
+  pub duration_seconds: Option<u8>,
+
+  /// Number of videos to generate.
+  pub batch_count: Option<Seedance2p0BatchCount>,
+}
+
+#[derive(Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum Seedance2p0AspectRatio {
+  /// 16:9 landscape (1280x720)
+  Landscape16x9,
+  /// 9:16 portrait (720x1280)
+  Portrait9x16,
+  /// 1:1 square (720x720)
+  Square1x1,
+  /// 4:3 standard (960x720)
+  Standard4x3,
+  /// 3:4 portrait (720x960)
+  Portrait3x4,
+}
+
+#[derive(Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum Seedance2p0BatchCount {
+  One,
+  Two,
+  Four,
+}
+
+#[derive(Serialize, Deserialize, ToSchema)]
+pub struct Seedance2p0MultiFunctionVideoGenResponse {
+  pub success: bool,
+
+  /// The first inference job token (always present).
+  pub inference_job_token: InferenceJobToken,
+
+  /// All inference job tokens for the batch (includes `inference_job_token` as the first entry).
+  pub all_inference_job_tokens: Vec<InferenceJobToken>,
+}

crates/api_clients/artcraft/storyteller_client/src/endpoints/generate/video/multi_function/mod.rs

@@ -1,4 +1,5 @@
 pub mod kling_2p5_turbo_pro_multi_function_video_gen;
+pub mod seedance_2p0_multi_function_video_gen;
 pub mod kling_2p6_pro_multi_function_video_gen;
 pub mod sora_2_multi_function_video_gen;
 pub mod sora_2_pro_multi_function_video_gen;

crates/api_clients/artcraft/storyteller_client/src/endpoints/generate/video/multi_function/seedance_2p0_multi_function_video_gen.rs

@@ -0,0 +1,18 @@
+use crate::credentials::storyteller_credential_set::StorytellerCredentialSet;
+use crate::error::storyteller_error::StorytellerError;
+use crate::utils::api_host::ApiHost;
+use crate::utils::basic_json_post_request::basic_json_post_request;
+use artcraft_api_defs::generate::video::multi_function::seedance_2p0_multi_function_video_gen::{Seedance2p0MultiFunctionVideoGenRequest, Seedance2p0MultiFunctionVideoGenResponse, SEEDANCE_2P0_MULTI_FUNCTION_VIDEO_GEN_PATH};
+
+pub async fn seedance_2p0_multi_function_video_gen(
+  api_host: &ApiHost,
+  maybe_creds: Option<&StorytellerCredentialSet>,
+  request: Seedance2p0MultiFunctionVideoGenRequest,
+) -> Result<Seedance2p0MultiFunctionVideoGenResponse, StorytellerError> {
+  Ok(basic_json_post_request(
+    api_host,
+    SEEDANCE_2P0_MULTI_FUNCTION_VIDEO_GEN_PATH,
+    maybe_creds,
+    request,
+  ).await?)
+}

crates/api_clients/seedance2pro/src/requests/generate_video/generate_video.rs

@@ -35,6 +35,33 @@ pub struct GenerateVideoArgs<'a> {
   pub reference_image_urls: Option<Vec<String>>,
 }
 
+impl GenerateVideoArgs<'_> {
+  /// Estimates the credit cost for this generation request.
+  ///
+  /// Pricing rules:
+  /// - 40 credits per second of video (4s = 160, 15s = 600)
+  /// - Resolution has no effect on cost
+  /// - Input mode (text, keyframe, reference) has no effect on cost
+  /// - Batch 1 = 1×, Batch 2 = 2×, Batch 4 = 3× (not 4×)
+  pub fn estimate_credits(&self) -> u32 {
+    let per_video = u32::from(self.duration_seconds) * 40;
+    let batch_multiplier = match self.batch_count {
+      BatchCount::One => 1,
+      BatchCount::Two => 2,
+      BatchCount::Four => 3, // NB: 3x, not 4x.
+    };
+    per_video * batch_multiplier
+  }
+
+  pub fn estimate_cost_in_usd_cents(&self) -> u64 {
+    // 25000 Credits costs $99.99 as of 2026-02-20
+    // 250 for $1.
+    let credits = self.estimate_credits() as f64;
+    let cost = credits / 250.0 * 100.0;
+    cost.round() as u64
+  }
+}
+
 // --- Public enums ---
 
 /// Video resolution / aspect ratio.
@@ -220,6 +247,65 @@ mod tests {
   use errors::AnyhowResult;
   use log::LevelFilter;
 
+  fn dummy_session() -> Seedance2ProSession {
+    Seedance2ProSession::from_cookies_string(String::new())
+  }
+
+  fn args_with(duration_seconds: u8, batch_count: BatchCount) -> GenerateVideoArgs<'static> {
+    // Safety: the dummy session is leaked so the reference is 'static for test purposes.
+    let session = Box::leak(Box::new(dummy_session()));
+    GenerateVideoArgs {
+      session,
+      prompt: String::new(),
+      resolution: Resolution::Square1x1,
+      duration_seconds,
+      batch_count,
+      start_frame_url: None,
+      end_frame_url: None,
+      reference_image_urls: None,
+    }
+  }
+
+  #[test]
+  fn test_estimate_credits() {
+    // 40 credits per second, batch 1
+    assert_eq!(args_with(4, BatchCount::One).estimate_credits(), 160);
+    assert_eq!(args_with(5, BatchCount::One).estimate_credits(), 200);
+    assert_eq!(args_with(6, BatchCount::One).estimate_credits(), 240);
+    assert_eq!(args_with(7, BatchCount::One).estimate_credits(), 280);
+    assert_eq!(args_with(15, BatchCount::One).estimate_credits(), 600);
+
+    // Batch 2 = 2×
+    assert_eq!(args_with(4, BatchCount::Two).estimate_credits(), 320);
+    assert_eq!(args_with(5, BatchCount::Two).estimate_credits(), 400);
+    assert_eq!(args_with(15, BatchCount::Two).estimate_credits(), 1200);
+
+    // Batch 4 = 3× (not 4×)
+    assert_eq!(args_with(4, BatchCount::Four).estimate_credits(), 480);
+    assert_eq!(args_with(5, BatchCount::Four).estimate_credits(), 600);
+    assert_eq!(args_with(15, BatchCount::Four).estimate_credits(), 1800);
+  }
+
+  #[test]
+  fn test_estimate_cost_usd_cents() {
+    // 40 credits per second, batch 1
+    assert_eq!(args_with(4, BatchCount::One).estimate_cost_in_usd_cents(), 64);
+    assert_eq!(args_with(5, BatchCount::One).estimate_cost_in_usd_cents(), 80);
+    assert_eq!(args_with(6, BatchCount::One).estimate_cost_in_usd_cents(), 96);
+    assert_eq!(args_with(7, BatchCount::One).estimate_cost_in_usd_cents(), 112);
+    assert_eq!(args_with(15, BatchCount::One).estimate_cost_in_usd_cents(), 240);
+
+    // Batch 2 = 2×
+    assert_eq!(args_with(4, BatchCount::Two).estimate_cost_in_usd_cents(), 128);
+    assert_eq!(args_with(5, BatchCount::Two).estimate_cost_in_usd_cents(), 160);
+    assert_eq!(args_with(15, BatchCount::Two).estimate_cost_in_usd_cents(), 480);
+
+    // Batch 4 = 3× (not 4×)
+    assert_eq!(args_with(4, BatchCount::Four).estimate_cost_in_usd_cents(), 192);
+    assert_eq!(args_with(5, BatchCount::Four).estimate_cost_in_usd_cents(), 240);
+    assert_eq!(args_with(15, BatchCount::Four).estimate_cost_in_usd_cents(), 720);
+  }
+
   fn test_session() -> AnyhowResult<Seedance2ProSession> {
     let cookies = get_test_cookies()?;
     Ok(Seedance2ProSession::from_cookies_string(cookies))