---
title: "Generate Similar Exercise"
method: POST
path: "/teacher/assignments/{assignment_id}/generate-similar-exercise"
tags: ["teacher_assignments"]
---

# Generate Similar Exercise

`POST /teacher/assignments/{assignment_id}/generate-similar-exercise`

Generate a similar exercise based on an existing exercise in the assignment.
Uses AI to create a variation with the provided custom prompt.

## Path parameters

- `assignment_id` string, required

## Request body

- GenerateSimilarExerciseRequest
  - `exercise_id` string, required
  - `custom_prompt` string — Custom prompt for AI generation

## Response `200`

Successful Response

- GenerateSimilarExerciseResponse
  - `status` string, required
  - `message` string, required
  - `new_exercise_id` string, required
  - `updated_at` string, date-time, required
  - `exercise_ids` string[], required
  - `exercises` AssignmentExerciseStub[]
    - `id` string, required
    - `order` integer, required
    - `source` 'teacher' | 'public' | 'calcul_template' | 'annale' | 'unknown'
    - `title` string, nullable
    - `original_id` string, nullable
    - `source_public_exercise_id` string, nullable
    - `source_annales_exercise_id` string, nullable
    - `estimated_minutes` integer, nullable
  - `added_exercises` AssignmentExerciseStub[]
    - `id` string, required
    - `order` integer, required
    - `source` 'teacher' | 'public' | 'calcul_template' | 'annale' | 'unknown'
    - `title` string, nullable
    - `original_id` string, nullable
    - `source_public_exercise_id` string, nullable
    - `source_annales_exercise_id` string, nullable
    - `estimated_minutes` integer, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-05** `437cd8414e9e` — 2 info
  - added the optional property `added_exercises/items/estimated_minutes` to the response with the `200` status
  - added the optional property `exercises/items/estimated_minutes` to the response with the `200` status

[Change history](https://skmtc.dev/excellence-ai/apis/excellence-learning/changes/teacher/assignments/:assignment_id/generate-similar-exercise/post.md)

---

[API](https://skmtc.dev/excellence-ai/apis/excellence-learning.md) · [All operations](https://skmtc.dev/excellence-ai/apis/excellence-learning/llms.txt) · [OpenAPI document](https://skmtc.dev/excellence-ai/apis/excellence-learning/revisions/a5af9b3b34f7?raw)