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ChatGPT & OpenAI

ChatGPT, the OpenAI API, agents, and everything in between.

30 courses · 468 lessons · Free

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ChatGPT: Complete Guide

Discover ChatGPT from scratch: interface, models, conversations, web search, images, voice, and files.

18 lessons 2 h 15 min Beginner

Mastering ChatGPT Prompts

Prompting techniques from beginner to expert based on OpenAI documentation, covering goal, context, output, limits, roles, few-shot, reasoning, templates, meta-prompting, and workflows.

16 lessons 2 h Beginner

ChatGPT Multimodal: Vision, Voice, and Images

Explore ChatGPT's multimodal capabilities, updated as of November 2026: image analysis, ChatGPT Images 2.6, ChatGPT Voice with Live, and analysis of documents, spreadsheets, and recordings.

14 lessons 2 h Intermediate

Custom GPTs, Plugins and Skills

Customize ChatGPT, understand and maintain your GPTs (instructions, knowledge base, API actions), then migrate them to plugins and skills before their retirement on December 11, 2026.

17 lessons 2 h Intermediate

Deep Research and Web Search

Leverage web search and Deep Research for in-depth analysis, fact-checking, and monitoring.

12 lessons 1 h 30 min Intermediate

Writing Blocks, Memory, and Projects

Write and code within responses using writing and code blocks. Configure ChatGPT memory and organize work into projects.

11 lessons 1 h 30 min Intermediate

OpenAI Reasoning: Reflection and Effort Levels, from ChatGPT to API

Understand and configure OpenAI model reasoning: the GPT-6 reflection slider in ChatGPT, Max and Ultra in Work and Codex, none to max effort and pro mode in the API, multi-step workflows, and business use cases.

12 lessons 1 h 45 min Intermediate

Professionals

Developers

ChatGPT in 2026: From GPT-5.6 to GPT-6

This course covers all OpenAI changes in 2026, updated November 5: the GPT-5.6 and GPT-6 families (Astra, GPT-6.1 Sol, GPT-6.1 Terra, Luna), reasoning effort and pro mode, GPT-Live, Agents API and Decisions API, ChatGPT Work and plugins, and the sunset schedule for Agent Builder, Evals, Custom GPTs, GPT-5 and o3.

12 lessons 1 h 30 min Intermediate

Responses API: OpenAI Fundamentals

Master the OpenAI API: Responses API, Python SDK, streaming, structured output, function calling, and production deployment.

22 lessons 2 h Developer

Building OpenAI Agents

Covers Agent Builder, Agents SDK, tools, guardrails, handoffs, ChatKit, and deploying agents to production.

25 lessons 2 h 15 min Developer

Codex: AI-Assisted Development

Codex for developers: app, IDE, CLI, code review, testing, documentation, and administration.

20 lessons 2 h Developer

API Tools: Search, Files, and Code Interpreter

This course covers Web Search, File Search, Code Interpreter, MCP, Tool Search, and multi-tool architectures.

20 lessons 45 min Developer

Computer Use and Automation

Automate interactions with the browser and desktop: navigation, forms, extraction, and workflows.

14 lessons 1 h 30 min Developer

Realtime API and Voice Agents

This course covers Realtime API, Whisper, TTS, and building complete voice agents for telephony and assistants.

18 lessons 45 min Developer

Image Generation via API: GPT Image

Create and edit images via the OpenAI API: GPT Image, styles, resolutions, and production integration.

12 lessons 1 h 30 min Developer

Embeddings, RAG and Semantic Search

This course covers OpenAI embeddings, vector databases, semantic search, a complete RAG pipeline, and production applications.

22 lessons 2 h 15 min Developer

Fine-Tuning OpenAI Models

Prepare your data, train, evaluate, and deploy a fine-tuned model for your business domain. Note: OpenAI self-service fine-tuning is gradually closing (no new jobs accepted after January 6, 2027).

16 lessons 1 h 45 min Advanced

Prompt Engineering for Developers

Covers system prompts, structured output, meta-prompting, Developer Mode, and prompt industrialization.

16 lessons 2 h Developer

Production, Evals, and Optimization

Covers latency, prompt caching, Batch API, evals, compaction, and complete production architecture.

20 lessons 2 h Advanced

ChatGPT Apps SDK and Plugins: MCP Servers and Interfaces

Build and publish plugins for ChatGPT and Codex: MCP server, MCP Apps interface, OAuth authentication, commerce rules, and directory submission.

14 lessons 1 h 30 min Developer

AI Security and Red Teaming

Covers prompt injection, jailbreaking, guardrails, moderation, red teaming, and GDPR compliance for AI.

14 lessons 1 h 45 min Advanced

Education