[Complete Guide] What is ChatGPT 5? How has it evolved from GPT-4, and what has changed?

The evolution of AI shows no signs of stopping. On August 7, 2025, OpenAI unveiled its latest model, ChatGPT 5, once again sending shockwaves through the AI world. This is not just a version upgrade—it marks AI’s arrival at an entirely new level of intelligence.

If GPT-4 could be described as a brilliant “university student,” then GPT-5 can be considered a “PhD-level expert” mastering multiple specialized fields.

In this article, we’ll focus on the decisive differences between GPT-4 and GPT-5 that most users want to know about, exploring its groundbreaking new features, performance improvements, and practical applications in both work and daily life.

Experience ChatGPT-5

Key Points of This Article

• GPT-5’s biggest advancement is its enhanced deep reasoning capability, something GPT-4 lacked.
• True multimodal functionality has been implemented, integrating multiple types of information seamlessly.
• Hallucinations (inaccuracies) have been drastically reduced, boosting answer reliability.
• A new “thought routing” feature optimizes responses based on complexity.
• GPT-5 can now be practically applied in both professional and creative fields.
  

Contents

• The decisive differences between ChatGPT-5 and GPT-4
• Use cases of ChatGPT-5
• Experience ChatGPT 5 on OpenAI’s official site
• Experience GPT-5 right now with GitMind AI
• FAQs about ChatGPT-5

The Decisive Differences Between ChatGPT 5 and GPT-4

The key question users ask: What exactly has improved from GPT-4, and what can GPT-5 do now?

The answer lies in the shift from mere “generation” to “thinking.” GPT-5 doesn’t just produce answers from data—it now solves problems through logical reasoning.

Here’s a breakdown of the main differences:

• Revolutionary reasoning ability: GPT-5 can perform multi-step logical thinking for complex tasks, solving problems as if “thinking deeply” like a human.
• True multimodal integration: Beyond processing text, images, and audio individually, GPT-5 can seamlessly combine them for full understanding.
• Dramatic reduction in hallucinations: Its factual accuracy has greatly improved, reducing the risk of false information.
• New “thought routing” feature: GPT-5 automatically switches between fast responses and deep reasoning depending on the complexity of a question.

1. Reasoning Power: From Generation to Deep Thinking

GPT-4 already had strong reasoning, but it sometimes failed at complex logic puzzles or specialized problems. GPT-5 fundamentally revamps this ability, running multiple internal thought processes to follow multi-step logic and reach more accurate, reliable conclusions.

This leap boosts precision in tasks like debugging large codebases or answering expert-level legal and medical questions.

2. Multimodal Abilities: True Integration and Understanding

While GPT-4o (Omni) already offered multimodal capabilities, GPT-5 takes it further—seamlessly integrating text, images, and voice for real comprehension.

Example: You upload a photo of Shibuya Station and a Japanese voice memo saying, “Tell me the easiest meeting spot here.” GPT-5 analyzes the image, understands the audio, and instantly suggests “in front of Hachiko statue.” Something earlier models couldn’t achieve by handling each input separately.

3. Hallucinations and Reliability: Dramatic Improvement

AI “hallucinations”—plausible-sounding but false answers—were a major weakness in past models. GPT-5 drastically reduces these errors, especially in specialized fields, making its answers more trustworthy for practical use.

In today’s world where credibility matters, this evolution is crucial.

Use Cases: How Will ChatGPT-5 Change Our Work?

GPT-5 revolutionizes workflows and creativity:

• Programming & Web Development: More efficient generation of complex front-end code and debugging large-scale systems.
• Creative Writing & Marketing: Transforms vague ideas into well-structured writing and persuasive copy rivaling professional writers.
• Specialized Fields: Acts as a high-precision assistant in healthcare, law, and finance by leveraging its vast expert knowledge.

Experience ChatGPT 5 on OpenAI’s Official Website

Steps:

1. Visit OpenAI’s official site and log into your account.
2. From the model selector at the top, choose “ChatGPT 5.”
   (Note: In free plans, GPT-5 is automatically used without model selection.)
3. Enter a question or prompt into the chatbox and start experiencing GPT-5 immediately.

Experience GPT-5 Now with GitMind AI

For those who don’t want to wait, GitMind AI offers instant access. GitMind, known for mind maps and flowcharts, now integrates GPT-5 and other advanced models (Gemini, Claude, DeepSeek).

Steps:

1. Access the “Chat with ChatGPT” link.
2. Select the model you want (e.g., ChatGPT 5).
3. Start asking questions or sharing ideas to experience GPT-5’s power right away.

FAQ: Things You Should Know About ChatGPT-5

Q1: When is ChatGPT 5 available?
A: Released on August 7, 2025. Initially available for Plus and Team users, with free access to follow later with usage limits.

Q2: Is it free to use?
A: GPT-5 is included in ChatGPT’s existing pricing structure. Free users have limited access; full features are for paid plans.

Q3: Will GPT-4 be discontinued?
A: No. GPT-4 remains available and may even be better suited for some tasks, giving users flexibility to choose the right model.

Conclusion: The New Possibilities GPT-5 Brings to the AI Era

ChatGPT-5 isn’t just an upgrade—it redefines how humans and AI work together. With PhD-level intelligence, seamless multimodality, and high reliability, it has the potential to transform work, learning, and creativity. AI is no longer just a tool; it’s becoming a thinking partner that expands our minds and opens new possibilities.

As this new dawn of AI rises, how will you face it? Experience GPT-5 and take your first step as a creator of the future.