OpenAI Academy
Free Interactive OpenAI Course & Technical Training
Master the world's leading AI platform. Learn ChatGPT essentials, Custom GPTs, the Assistants API, o1 reasoning models, and advanced prompt engineering.
The OpenAI Academy is a free 17-module interactive technical curriculum with 33 lessons, 95 quizzes, and 12 hands-on terminal labs for building enterprise software with OpenAI models. It provides deep tutorials on GPT-5.6, o3-mini reasoning, Responses API, Structured Outputs, Fine-Tuning, Realtime WebSockets, and Assistant Agent architectures with zero sign-up.
OpenAI Technical Training Modules
ChatGPT Essentials
Custom GPTs & GPT Store
Conversations API
Function Calling & Structured Outputs
Embeddings & Vector Search
Fine-Tuning & Distillation
Speech & Audio APIs
Computer Use (CUA)
Image & Multimodal
Production & Cost Optimization
Assistants API (Legacy)
Enterprise Privacy & Governance
OpenAI Frontier Architecture
Frequently Asked Questions
Is the OpenAI Academy free?
Yes, 100% free. No sign-up, no credit card. All modules, lessons, and quizzes are immediately accessible. Progress saves locally in your browser.
What topics does the OpenAI Academy cover?
The course covers ChatGPT essentials, Custom GPT creation, API integration, the Responses API, the Agents SDK, and the newly released GPT-5.6 family (Luna, Terra, Sol).
Do I need programming experience?
No prerequisites required for the first modules (ChatGPT and Custom GPTs). The later modules on the API and Agents SDK require basic programming knowledge, particularly in JavaScript or Python.
What is the Responses API?
The Responses API is the new unified endpoint introduced in 2025/2026 that replaces both Chat Completions and the Assistants API, offering built-in tools like web search and native conversational memory.
What is the difference between GPT-5.6 Luna, Terra, and Sol?
Luna is the ultra-fast, cost-efficient edge model. Terra is the balanced daily driver offering GPT-5.5 level performance for cheaper. Sol is the flagship model with an 'Ultra' setting for complex parallel multi-agent orchestration.