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Microsoft-backed artificial intelligence (AI) startup OpenAI has launched GPT-5. During the keynote of the launch event, OpenAI’s CEO, Sam Altman highlighted the improved performance of GPT-5, describing it as smarter, faster, and less likely to make mistakes. GPT-5 offers an experience closer to speaking with a PhD-level expert, according to him. In a blog post, the company describes GPT-5 as uniting and exceeding previous OpenAI developments, including those related to reasoning, agents, and advanced math capabilities. OpenAI states that GPT-5 offers advancements in accuracy, speed, reasoning, context recognition, and problem-solving. Instead of requiring users to adjust settings manually, GPT-5 uses a real-time routing system to determine whether to prioritise speed or more in-depth responses based on the context.
Drawing a comparison with earlier versions, Altman said: “GPT-3 sort of felt like talking to a high school student,” while “GPT-4 felt like you’re talking to a college student. The company claims that this new model is a significant step toward integrating AI into businesses. The company suggests that its full capabilities will be realised when businesses begin applying it to new use cases. The update also introduces a more streamlined experience.
Unlike GPT-4, which focused mainly on generating responses to user queries, GPT-5 expands ChatGPT’s capabilities to include tasks like building basic software applications, managing calendar events, and drafting research summaries.
GPT-5 is OpenAI’s first “unified” model, designed to combine the reasoning strengths of the o-series with the quick response times of previous GPT models.
GPT-5 Now Accessible for ChatGPT Team and API Users
OpenAI has announced that customers using ChatGPT Team can now access GPT-5. The model will be available to Enterprise and Edu customers starting next week. Additionally, GPT-5 is currently accessible through the OpenAI API, allowing developers to begin integrating it into their applications. Soon, Team, Enterprise, and Edu customers will also have access to GPT-5 Pro, a version designed to provide enhanced reasoning capabilities for more accurate and detailed responses.
ChatGPT Plus subscribers ($20/month) can get higher GPT-5 usage limits than free users, while Pro users ($200/month) will receive unlimited access to GPT-5 and an enhanced GPT-5 Pro version with improved performance. OpenAI claims GPT-5 delivers strong all-around performance, slightly outperforming rivals like Claude Opus 4.1, Gemini 2.5 Pro, and Grok 4 in coding and science-related tasks, though it underperforms in some benchmarks. It has improved accuracy in health-related queries, hallucinating far less than previous models (1.6% vs 12.9% in GPT-4o). GPT-5 shows reduced hallucination overall (4.8% vs over 20% in earlier models) and is better at identifying unsafe queries while avoiding unnecessary rejections.
As part of the rollout, ChatGPT is also getting some interface updates. Users can now choose from four new response styles—Cynic, Robot, Listener, and Nerd—which aim to adjust how the assistant replies without needing specific instructions each time. It scores well on real-world coding ) and PhD-level science questions. Safety research suggests it’s also less deceptive, with improvements in honesty and transparency. However, performance is mixed on agentic benchmarks where it underperforms slightly on some tasks. Meta’s Secret AI Army: Top Talent Hired from OpenAI, Google & More AI Masterclass for Students.
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