GPT-5.4 Is Here — I Tested the New ChatGPT Model

👉 Join the fastest-growing AI education platform! Try it free and explore 20+ top-rated courses in AI included Introduction to AI Agents course: https://bit.ly/skill-leap I walk through how I test the new GPT 5.4 Thinking model and see how it compares to GPT 5.2 and other AI models. Here is the official blog post: https://openai.com/index/introducing-gpt-5-4/ In this video I test the new ChatGPT update that just released. I talk about GPT 5.4 Thinking, GPT 5.4 Pro, and the new GPT 5.3 Instant model. I explain how the instant model answers right away while the thinking model takes time to reason before it replies. I also show what the Pro model is meant for and when it makes sense to use it. I run real tests with GPT 5.4 Thinking to see what it can actually do. I use it for research, deep web search, building a PowerPoint presentation, and creating a full Excel spreadsheet with formulas. I also test coding by asking it to build a small AI tools website and a simulation app. This helps show how well the new model handles coding, knowledge work, and tool use. I also talk about the new computer use capability that lets the model work on the web, handle tasks, and help with things like emails or data entry. Another update is lower hallucination rates, which means the model should make fewer incorrect claims. Along the way I compare GPT 5.4 with GPT 5.2 and talk about how it stacks up against other AI models like Claude and Gemini. This gives a quick look at where the new ChatGPT model stands right now. If you want to see what GPT 5.4 Thinking can do with research, spreadsheets, presentations, coding, and everyday prompts, this walkthrough shows the results from real tests.