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

What you'll learn

• ✓ Identify the GPT-5.6 and GPT-6 families and select the model suited to a workload
• ✓ Set the effort and reasoning mode taking into account the accepted and default values of each model
• ✓ Identify what the Agents API, GPT-Live 1 and the Decisions API provide
• ✓ Guide ChatGPT users in the transition from GPTs to plugins, before their retirement on December 11, 2026, and in choosing a plan
• ✓ Plan the migration before the announced closures, including those of November 30 and December 11, 2026

Course details

Who it's for

Developers, engineers, and integrators looking to leverage ChatGPT via API in their applications.

Prerequisites

Regular practice with a programming language, knowledge of REST APIs and JSON format.

Length

1 h 30 min · 12 lessons

Format

100% online self-paced course, accessible 24/7 from a browser. Progress is saved, resume anytime. Estimated duration: 1 h 30 min.

Assessment

Practice exercises offered throughout the lessons. Each lesson ends with its Key takeaways, supporting self-assessment. A final quiz of 5 corrected questions, at the end of the last lesson, allows validation of acquired skills.

Accessibility

Self-paced course accessible to people with disabilities: text content compatible with screen readers, keyboard navigation and compliant contrasts. For any adaptation needs, email [email protected].

Price

Free

Recognition

Certificate of completion issued by Corsen AI, verifiable online.

Syllabus

Download the syllabus (PDF)

Syllabus