diff --git a/packages/llm/llm-deepseek/src/file-store.ts b/packages/llm/llm-deepseek/src/file-store.ts
index c402a3d5ed..da6f87654a 100644
--- a/packages/llm/llm-deepseek/src/file-store.ts
+++ b/packages/llm/llm-deepseek/src/file-store.ts
@@ -32,12 +32,6 @@ export interface DeepSeekFileReference {
   uploaded: boolean
 }
 
-/** One request-image version with the exact remote id a model request rejected. */
-export interface DeepSeekRejectedUpload {
-  version: RequestImageAttachment
-  fileId: DeepSeekFileId
-}
-
 interface FileStoreOptions {
   index?: DeepSeekUploadIndex
   now?: () => number
@@ -251,17 +245,14 @@ export class DeepSeekFileStore {
 
   /**
    * Invalidate exact local mappings in one index update after a model request rejects their remote ids.
-   * @param rejected - request-image versions with the exact file id the request used for each.
+   * @param generations - request-image variants with the exact file id the request used for each.
    * @param connection - endpoint and API-key snapshot.
    */
   async invalidate(
-    rejected: readonly DeepSeekRejectedUpload[],
+    generations: readonly Pick<DeepSeekUploadRecord, 'variantId' | 'fileId'>[],
     connection: DeepSeekFileConnection,
   ): Promise<void> {
-    await this.index.remove(
-      fileScope(connection),
-      rejected.map(({ version, fileId }) => ({ variantId: version.variantId, fileId })),
-    )
+    await this.index.remove(fileScope(connection), generations)
   }
 
   /**
diff --git a/packages/llm/llm-deepseek/src/index.ts b/packages/llm/llm-deepseek/src/index.ts
index 53d565ce3f..623dbea335 100644
--- a/packages/llm/llm-deepseek/src/index.ts
+++ b/packages/llm/llm-deepseek/src/index.ts
@@ -28,7 +28,7 @@ export {
 } from './request-pricing.ts'
 export { deepSeekImageTokens, deepSeekRequestImageDimensions } from './image-tokens.ts'
 export { DeepSeekFileStore, MAX_IMAGE_BYTES } from './file-store.ts'
-export type { DeepSeekFileConnection, DeepSeekFilePolicy, DeepSeekFileReference, DeepSeekRejectedUpload } from './file-store.ts'
+export type { DeepSeekFileConnection, DeepSeekFilePolicy, DeepSeekFileReference } from './file-store.ts'
 export { DeepSeekFilesClient, MAX_FILE_EXPIRY_SECONDS, MAX_FILE_UPLOAD_BYTES, MAX_STORED_FILE_BYTES, MAX_STORED_FILE_COUNT, MIN_FILE_EXPIRY_SECONDS } from './files-api.ts'
 export type { DeepSeekFileObject, DeepSeekFilePage } from './files-api.ts'
 export { DeepSeekFileId } from './file-id.ts'
diff --git a/packages/llm/llm-deepseek/src/request-files.ts b/packages/llm/llm-deepseek/src/request-files.ts
index cfee416482..85e1460903 100644
--- a/packages/llm/llm-deepseek/src/request-files.ts
+++ b/packages/llm/llm-deepseek/src/request-files.ts
@@ -134,7 +134,10 @@ export class RequestFiles {
    */
   async retry(detail: string): Promise<boolean> {
     if (this.used.length === 0 || !providerRejectedFileId(detail)) return false
-    await this.files.invalidate(staleMappings(this.used, detail), this.connection)
+    await this.files.invalidate(
+      staleMappings(this.used, detail).map(file => ({ variantId: file.version.variantId, fileId: file.fileId })),
+      this.connection,
+    )
     if (this.retried) return false
     this.retried = true
     return true
diff --git a/packages/llm/llm-deepseek/tests/file-store.spec.ts b/packages/llm/llm-deepseek/tests/file-store.spec.ts
index b27a7e3078..a8cb1458a4 100644
--- a/packages/llm/llm-deepseek/tests/file-store.spec.ts
+++ b/packages/llm/llm-deepseek/tests/file-store.spec.ts
@@ -98,10 +98,10 @@ describe('DeepSeekFileStore', () => {
     expect((await store.ensureUploaded(VERSION, { ...CONNECTION, baseURL: `${CONNECTION.baseURL}/v1/` }, POLICY)).record).toEqual(first.record)
     const reopened = new DeepSeekFileStore({ index, fetch: remote.fetchImpl, now: () => now })
     expect((await reopened.ensureUploaded(VERSION, CONNECTION, POLICY)).record).toEqual(first.record)
-    await reopened.invalidate([{ version: VERSION, fileId: other.record.fileId }], CONNECTION)
+    await reopened.invalidate([{ variantId: VERSION.variantId, fileId: other.record.fileId }], CONNECTION)
     expect((await reopened.ensureUploaded(VERSION, CONNECTION, POLICY)).record).toEqual(first.record)
     expect(remote.uploads()).toBe(2)
-    await reopened.invalidate([{ version: VERSION, fileId: first.record.fileId }], CONNECTION)
+    await reopened.invalidate([{ variantId: VERSION.variantId, fileId: first.record.fileId }], CONNECTION)
     const replacement = await reopened.ensureUploaded(VERSION, CONNECTION, POLICY)
     expect(replacement.record.fileId).not.toBe(first.record.fileId)
     expect((await reopened.ensureUploaded(VERSION, alternate, POLICY)).record).toEqual(other.record)
diff --git a/packages/llm/llm-deepseek/tests/files.spec.ts b/packages/llm/llm-deepseek/tests/files.spec.ts
index 13e226ce9c..bb44326318 100644
--- a/packages/llm/llm-deepseek/tests/files.spec.ts
+++ b/packages/llm/llm-deepseek/tests/files.spec.ts
@@ -73,10 +73,7 @@ describe('Messages Files requests', () => {
     vi.stubGlobal('fetch', fetchImpl)
     const h = harness()
     await chunks(h.adapter.stream(request([ref, second])))
-    expect(h.invalidate).toHaveBeenCalledExactlyOnceWith(
-      [expect.objectContaining({ version: expect.objectContaining({ attachment: ref }), fileId: 'file-a' })],
-      expect.objectContaining({}),
-    )
+    expect(h.invalidate).toHaveBeenCalledExactlyOnceWith([{ variantId: version(ref).variantId, fileId: 'file-a' }], expect.objectContaining({}))
     expect(fetchImpl).toHaveBeenCalledTimes(2)
     expect(h.prepare).toHaveBeenCalledTimes(2)
     expect(h.ensureUploaded).toHaveBeenCalledTimes(4)