ChatGPT

ChatGPT is an AI-powered assistant from OpenAI that exposes the company’s large language models through a chat interface and through agentic modes that carry out multi-step work on your behalf. It supports text, images, and voice and can browse the web to surface current information with citations.

ChatGPT can generate, explain, and refactor code, assist with debugging, and run file-based analyses to create charts and summarize datasets. For deeper software work, ChatGPT now ships alongside Codex, OpenAI’s coding agent, which covers planning, writing, testing, reviewing, and shipping code from the same app.

ChatGPT also supports custom GPTs to tailor behavior for specific tasks, although OpenAI is planning to retire them and recommends moving those workflows to plugins. Personal accounts on the Free, Go, Plus, and Pro plans can no longer create or publish new GPTs, and existing GPTs remain usable until retirement.

ChatGPT offers apps that link popular document and code sources for organization-wide search and “deep research”, and it packages those apps into plugins, which you browse and enable from its plugin directory.

Official website: chatgpt.com

Write Unit Tests for Your Python Code With ChatGPT

Tutorial

Write Unit Tests for Your Python Code With ChatGPT

In this tutorial, you'll learn how to use ChatGPT to generate tests for your Python code. You'll use the chat to create doctest, unittest, and pytest tests for your code.

intermediate ai testing tools

For additional information on related topics, take a look at the following resources:

Have a question about this? Mentor AI can show you examples, compare related terms, and point you to tutorials.

  • Ask Mentor AI
  • Pick a question and Mentor AI takes it from here.
By Martin Breuss • Updated Oct. 14, 2026 • Reviewed by Leodanis Pozo Ramos
AI Coding Tools Share Feedback