The video tutorial introduces GPT 5.5 and guides beginners on how to maximize its capabilities. A common mistake users make is assuming the latest model is activated by default. To access GPT 5.5, users need to manually select it in the settings and switch from standard to extended mode for enhanced intelligence. However, for simple queries, it’s recommended to use the instant mode to avoid unnecessary compute costs and overthinking by the model.
The presenter emphasizes that using GPT 5.5 in the native chat interface limits its potential. Instead, users should utilize the Codex app, which unlocks GPT 5.5’s ability to perform real-world tasks such as creating documents, Excel sheets, web apps, and more. The tutorial explains how to download and configure Codex, highlighting its user-friendly setup that avoids technical complexity. Within Codex, users can activate GPT 5.5, adjust reasoning levels, and start leveraging the model for practical applications.
One practical example demonstrated is generating an Excel file to plan revenue for a creative business. GPT 5.5 can create detailed spreadsheets with assumptions, revenue plans, expenses, and dashboards, even with minimal input data. The video also introduces “plan mode,” a feature that allows GPT 5.5 to outline a detailed task plan before execution, which is especially useful for complex, multi-step projects like creating presentations or building websites. This mode helps prevent errors and optimizes credit usage.
The tutorial further showcases GPT 5.5’s ability to create PowerPoint presentations quickly and efficiently, producing structured slide decks with multiple slides in just a few minutes. Codex allows users to customize outputs by specifying styles, structures, and sources. Another powerful use case is building simple web applications, such as tracking company valuations, demonstrating GPT 5.5’s reasoning and data handling capabilities. The presenter notes that Codex keeps working in the background even if users open new chats, unlike the standard chat interface.
Finally, the video highlights GPT 5.5’s integration with browser use plugins, enabling it to perform agentic tasks like testing websites and analyzing onboarding flows, which are not possible in the standard chat interface. Users are advised to increase reasoning levels for more complex tasks and to monitor their credit usage since GPT 5.5 is more resource-intensive and costly. Overall, the tutorial encourages beginners to move beyond the basic chat interface and fully utilize Codex to unlock the advanced functionalities of GPT 5.5.
