What is ChatGPT 4.5?

• Blockchain Council
• March 05, 2025

OpenAI has introduced GPT 4.5 on February 27, 2025, an improved version of its AI language model. This update brings more accurate responses, stronger context retention, and a better grasp of human emotions. It builds on the foundation of GPT-4 but pushes the boundaries with faster processing and expanded capabilities.

Why is ChatGPT 4.5 Better Than Previous Versions?

ChatGPT 4.5 improves AI interactions by reducing errors and offering more human-like responses. Some of its standout features include:

• Fewer errors in responses, making it more reliable.
• A larger knowledge base that covers more recent topics.
• Text and image input support for better user engagement.
• Quicker replies to make conversations feel more natural.
• Improved emotional intelligence to detect tone and intent accurately.

This version is built for efficiency, making AI a more useful tool for businesses, researchers, developers, and casual users.

How Does ChatGPT 4.5 Work?

ChatGPT 4.5 runs on an advanced AI system known as the Generative Pre-trained Transformer (GPT). This deep-learning technology helps the model understand and generate human-like responses. Compared to GPT-4, this version has a larger dataset and stronger processing power, making it faster and more precise.

What is the Size of ChatGPT 4.5?

OpenAI has not revealed the exact number of parameters, but experts believe it surpasses the estimated 1.8 trillion used in GPT-4. A higher parameter count allows the AI to recognize patterns more efficiently and generate better responses.

How Was ChatGPT 4.5 Trained?

This model was trained using billions of text samples, including books, articles, and research papers. The training process involved:

• Thousands of AI processors running in parallel.
• Several months of continuous learning and refinement.
• A self-improving mechanism that allows it to correct errors.

The final result is a smarter AI system that understands user intent and provides more relevant answers.

What Are the Key Features of ChatGPT 4.5?

1. Smarter Responses with Emotional Awareness

ChatGPT 4.5 detects emotions, tone, and user intent more effectively.

Example: If someone says, “Work stress is overwhelming me,” the AI can suggest relaxation methods or supportive advice instead of a generic response.

What changed? The model now has deeper layers that improve intent recognition and conversation flow.

2. Fewer Mistakes and More Accuracy

Earlier AI versions sometimes generated incorrect information, known as hallucinations. ChatGPT 4.5 significantly reduces these errors.

Model	Error Rate
ChatGPT 4.5	37.1%
GPT-4o	61.8%
OpenAI o1	44%
OpenAI o3-mini	80.3%

Why does it perform better?

• Uses more fact-checked sources.
• Applies self-correction methods before finalizing responses.
• Has access to a broader dataset with recent information.

Example: When asked about a 2025 space mission, ChatGPT 4.5 is more likely to provide verified details instead of guessing.

3. Can Process Both Text and Images

This version introduces multimodal support, allowing it to analyze images alongside text.

• Upload a photo of a broken device: The AI can suggest possible issues.
• Share a handwritten note: It can transcribe and summarize the content.
• Send a math equation: The AI can explain the steps to solve it.

How does it work? OpenAI combined its text-processing capabilities with vision models to analyze images effectively.

4. Real-Time Web Access

ChatGPT 4.5 can fetch live information from the internet.

• If you ask about a March 2025 product launch, it retrieves the most recent updates.
• It verifies sources before responding, reducing misinformation.
• Optimized search queries keep answers relevant.

This upgrade makes ChatGPT 4.5 a real-time research assistant rather than a static knowledge database.

5. New Canvas Feature for Writing and Coding

ChatGPT 4.5 introduces Canvas, an interactive workspace for writers and programmers.

• Writing Mode: Get AI suggestions while typing.
• Coding Mode: Debug code with instant AI feedback.
• Editing Mode: AI refines your content in real time.

Why is this useful? Writers and developers can complete projects faster with AI-assisted suggestions.

How Does ChatGPT 4.5 Compare to Other AI Models?

ChatGPT 4.5 builds on previous AI advancements while refining its accuracy and usability.

How Does the AI Handle Processing?

Compared to earlier models, this version has:

• More neural layers for better language understanding.
• Faster response times for a smoother experience.
• Optimized computing for improved performance.

What Are the Costs of Running ChatGPT 4.5?

Maintaining and operating this model requires significant computing resources. Businesses and developers using its API can expect:

• $75 per million input tokens.
• $150 per million output tokens.
• Integration with Microsoft Azure and high-performance AI processors.

These costs reflect the advanced capabilities of the model.

How Good is ChatGPT 4.5 at Different Tasks?

This AI excels in many areas but still has room for improvement.

What Tasks Can ChatGPT 4.5 Perform Well?

Task	Performance Level
General Q&A	Highly accurate
Creative Writing	More human-like
Customer Support	Better emotional tone
Coding Assistance	Faster debugging

What Are the Limitations of ChatGPT 4.5?

Although this version improves many aspects, it still lacks:

• Voice recognition and video processing.
• Advanced reasoning for solving deep logic problems.
• A cost-effective model for small-scale users.

Future updates may address these challenges.

How to Use ChatGPT 4.5?

Users can access this AI model through different platforms.

Where is ChatGPT 4.5 Available?

• Currently offered to ChatGPT Pro users.
• Expanding to Plus and Team plans.
• Enterprise and education versions are in development.

How to Access ChatGPT 4.5?

• Available through OpenAI’s API.
• Supports structured outputs and real-time data retrieval.
• Works with various applications for business and development.

Developers can integrate it into AI-powered tools, while businesses can use it for automation and customer service.

What is the Future of AI After ChatGPT 4.5?

This version sets the stage for even more powerful AI models. Future developments could include:

• Better logical reasoning for advanced problem-solving.
• More features for handling video and audio inputs.
• AI-powered automation for decision-making in different industries.

OpenAI continues refining its models, making artificial intelligence more practical for everyday use. It announced that ChatGPT 5 might come within weeks or months. 

Why Does ChatGPT 4.5 Matter?

ChatGPT 4.5 brings a more refined AI experience with stronger accuracy, improved contextual awareness, and advanced features. It is useful for businesses, developers, writers, and researchers looking for smarter AI-powered solutions.

With real-time web browsing, image processing, and better conversational abilities, this model represents a major leap in artificial intelligence. As AI technology evolves, future models will continue to push the boundaries of what is possible.