diff --git a/frontend/plugins/services.ts b/frontend/plugins/services.ts
index ddeba42e..1c070656 100644
--- a/frontend/plugins/services.ts
+++ b/frontend/plugins/services.ts
@@ -7,7 +7,6 @@ import { ProjectApplicationService } from '@/services/application/project/projec
 import { TagApplicationService } from '@/services/application/tag/tagApplicationService'
 import { BoundingBoxApplicationService } from '@/services/application/tasks/boundingBox/boundingBoxApplicationService'
 import { SegmentationApplicationService } from '@/services/application/tasks/segmentation/segmentationApplicationService'
-import { Seq2seqApplicationService } from '@/services/application/tasks/seq2seq/seq2seqApplicationService'
 import { SequenceLabelingApplicationService } from '@/services/application/tasks/sequenceLabeling/sequenceLabelingApplicationService'
 
 export interface Services {
@@ -17,7 +16,6 @@ export interface Services {
   project: ProjectApplicationService
   example: ExampleApplicationService
   sequenceLabeling: SequenceLabelingApplicationService
-  seq2seq: Seq2seqApplicationService
   option: OptionApplicationService
   tag: TagApplicationService
   bbox: BoundingBoxApplicationService
@@ -41,7 +39,6 @@ const plugin: Plugin = (_, inject) => {
       repositories.span,
       repositories.relation
     ),
-    seq2seq: new Seq2seqApplicationService(repositories.textLabel),
     option: new OptionApplicationService(repositories.option),
     tag: new TagApplicationService(repositories.tag),
     bbox: new BoundingBoxApplicationService(repositories.boundingBox),
diff --git a/frontend/services/application/tasks/seq2seq/seq2seqApplicationService.ts b/frontend/services/application/tasks/seq2seq/seq2seqApplicationService.ts
deleted file mode 100644
index 04d78570..00000000
--- a/frontend/services/application/tasks/seq2seq/seq2seqApplicationService.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import { AnnotationApplicationService } from '../annotationApplicationService'
-import { Seq2seqDTO } from './seq2seqData'
-import { TextLabel } from '@/domain/models/tasks/textLabel'
-
-export class Seq2seqApplicationService extends AnnotationApplicationService<TextLabel> {
-  public async list(projectId: string, exampleId: number): Promise<Seq2seqDTO[]> {
-    const items = await this.repository.list(projectId, exampleId)
-    return items.map((item) => new Seq2seqDTO(item))
-  }
-
-  public async create(projectId: string, exampleId: number, text: string): Promise<void> {
-    const item = new TextLabel(0, text, 0)
-    await this.repository.create(projectId, exampleId, item)
-  }
-
-  public async changeText(
-    projectId: string,
-    exampleId: number,
-    labelId: number,
-    text: string
-  ): Promise<void> {
-    const textLabel = await this.repository.find(projectId, exampleId, labelId)
-    textLabel.updateText(text)
-    await this.repository.update(projectId, exampleId, labelId, textLabel)
-  }
-}
diff --git a/frontend/services/application/tasks/seq2seq/seq2seqData.ts b/frontend/services/application/tasks/seq2seq/seq2seqData.ts
deleted file mode 100644
index b2d39380..00000000
--- a/frontend/services/application/tasks/seq2seq/seq2seqData.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { TextLabel } from '@/domain/models/tasks/textLabel'
-
-export class Seq2seqDTO {
-  id: number
-  text: string
-  user: number
-
-  constructor(item: TextLabel) {
-    this.id = item.id
-    this.text = item.text
-    this.user = item.user
-  }
-}