ChatGPT has become the heart of the AI revolution. It is the first AI tool and is also one of the best to date. From analytical thinking to code generation, image creation to Deep research, ChatGPT can perform almost all complex tasks. 

OpenAI has consistently invested significant computational resources and effort in developing new versions of ChatGPT. These advancements have delivered significant benefits, including the integration of multiple tools and apps into the model to simplify task simulation. 

OpenAI is back with a new version, 5.4, on 5th March 2026. This is not just a usual update with new security patches and a few add-ons. This is a game-changing update for both free and premium users. 

In this blog, we’ll walk through all the features of the new version 5.4. If you want a simple, clear breakdown of what’s new, you’re in the right place. Let’s get started.

One Million Token Context Window

The context window is the ability to process information from the user input. For example, if the context window is 1 million, it is approximately equal to 750k words or about 2 hours of video content.

In the previous versions of ChatGPT, such as 5.3, the maximum token context window is 400k. But the new version has a context window of 1 million, which is a huge plus point for large prompts and complex explanations. Now, GPT 5.4 can process massive amounts of information, such as summarizing an entire book or analyzing multiple heavy documents. This is a huge benefit for research purposes. Users can also upload entire coding repositories to identify bugs, and the model can now directly work on the entire repository.

Reasoning and Thinking 

GPT 4.5 introduces a thinking model, which is helpful for reasoning and problem-solving. You can also switch between auto, instant, thinking, and pro options. Here’s what they do:

Auto: automatic switch between 5.3 and 5.4

Instant: Quick responses

Thinking: Deep reasoning

Pro: High performance

This model can work on difficult, real-world problems and is capable of performing deep research that requires combining information from multiple online resources.

Additionally, it can create and edit spreadsheets, slideshows, images, etc.

Also Read: ChatGPT Workflows: The Best Productivity Tools

Built-in Native Computer-Use

This is by far the biggest update of the new version. With GPT 5.4, you can operate workflows and software directly on your system. This can enable AI agents that can complete real tasks, not just answer questions.

For example, ChatGPT can now:

Automatically edit documents

Run scripts

Send keyboard and mouse commands

Control applications on your device

Efficient Tool Usage

Another new feature of the model is tool search. With this feature, the model can now only load the required tools into memory, instead of loading all the tools. This results in

Reduced the token usage

Faster responses

Better automation

Avoid loading all tools into the memory

Improved Coding Performance

GPT 5.4 improves the coding performance of GPT 5.3- Codex. 

This is beneficial in faster debugging, improved iterations, and better coding. 

The above are the important updates and new features of GPT 4.5. Other updates include faster responses, reduced hallucinations, efficient usage, and agent-style automation of workflows. All these features can be accessed by the free users to a limited extent. 

This is a huge milestone in the journey of AI tools and agents, which is available for free! So go ahead, try the new model and save manual efforts. 

Frequently Asked Questions:

Is ChatGPT 5.4 available for free users?

Yes. Chat GPT 5.4 is available for free users to a limited extent.

Can GPT 5.4 actually control my computer?

Yes. GPT 5.4 supports native computer use.

When is GPT 5.4 released?

GPT 5.4 was released on March 6, 2026.

What is the full form of GPT 5.4?

Generative Pre-trained Transformer 5.4

What is GPT 5.4?

GPT 5.4 is the advanced frontier model of OpenAI.