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OpenAI describes GPT-5 as their “most intelligent, fastest, and most helpful model yet.” If the aim was to put expert-level intelligence into everyone’s pocket, they might have just achieved it.
What Sets GPT-5 Apart?
GPT-5 exhibits significant improvements in various areas compared to earlier versions, particularly in mathematics, programming, visual comprehension, and healthcare. OpenAI states that it is also “much better” at following instructions and makes fewer hallucinations. The model is more honest, with responses that are 45% less likely to contain factual inaccuracies than GPT-4o. It communicates its actions and capabilities more clearly, especially in complex or poorly defined tasks.
Beyond performance enhancements, GPT-5 functions as a unified platform that automatically determines how best to handle your queries. This eliminates the need to choose the right AI for specific tasks, thanks to a “real-time router” that makes the selection for you. If you found the differences between GPT-4, GPT-4o, and GPT-4o mini confusing, GPT-5 manages all of that seamlessly.
Currently available in three versions—regular, mini, and nano—GPT-5 also includes a more advanced reasoning model called GPT-5 Thinking for tackling difficult problems. There’s also a GPT-5 Pro version, which replaces the previous OpenAI o3‑pro, available exclusively for ChatGPT Pro subscribers. The model leans toward a more engineering-focused problem-solving approach, often emphasizing technical details over general context. It not only understands the data better but also makes better use of it than previous GPT iterations.
While the improvements may not be immediately obvious in every response, GPT-5 generally produces fewer errors and demonstrates more nuanced understanding. Tasks like solving math problems, generating code, or creative writing will become more reliable, with outputs that feel less like AI and more like human-crafted work.
Visual Evidence of GPT-5 in Action
Source: OpenAI
GPT-5 is presently offered in three variants—regular, mini, and nano. A more advanced reasoning version, GPT-5 Thinking, is utilized for complex problems, and a GPT-5 Pro edition (replacing OpenAI o3‑pro) is available for ChatGPT Pro subscribers. The model reflects a more engineering-driven problem-solving style, often prioritizing technical accuracy over broad contextual understanding. Output differences tend to improve gradually, with responses featuring fewer mistakes and enhanced sophistication. In creative tasks, responses feel less artificial and more natural.
The model has also become less agreeable, a change that previously prompted GPT-4o to revert to a previous version. It now uses fewer emojis and offers more subtle, thoughtful follow-ups compared to GPT-4o. Additionally, GPT-5 introduces four new preset personalities—Cynic, Robot, Listener, and Nerd—that users can toggle and customize at any time.
Who Can Use GPT-5?
For the first time, GPT-5 is accessible to all ChatGPT users immediately. The rollout covers ChatGPT Plus, Pro, Team, and Free accounts, with enterprise and educational access expected next week. Moving forward, GPT-5 will be the default in ChatGPT, replacing previous models like GPT‑4o, OpenAI o3, OpenAI o4-mini, GPT‑4.1, and GPT‑4.5.
The main distinction between free and paid versions lies in usage limits. ChatGPT Plus subscribers enjoy significantly higher usage caps, while Pro users have unlimited access, including the GPT-5 Pro model. Interestingly, the chatbot sometimes appears confused about which model it’s running; when asked whether it’s GPT-5 or GPT-4o on a free account, it claimed to be GPT-4o and suggested GPT-5 wasn’t publicly available yet.
Source: MakeUseOf
This likely will persist for a few days or weeks as OpenAI gradually introduces GPT-5 worldwide. Besides ChatGPT, GPT-5 is also integrated into Codex, OpenAI’s AI-powered coding tool. Microsoft has announced plans to roll out GPT-5 across its ecosystem, including Office 365, Copilot, GitHub Copilot, and Azure AI.
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