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Highlights OpenAI introduces GPT-4.5 with improved accuracy, fewer hallucinations and better emotional intelligence. However, the company maintains that it's not the most advanced model. GPT-4.5 is more conversational, concise and natural-sounding, encouraging dialogue rather than just providing answers. Initially available to Pro users with wider access planned for ChatGPT Plus, Team subscribers, Enterprise and Education users soon. OpenAI Unveils its smarter and more Conversational model, GPT-4.5. (Image credit - Open AI on X) OpenAI has officially launched GPT-4.5, its latest and most refined ChatGPT model yet. While it brings better accuracy, fewer hallucinations and improved emotional intelligence, OpenAI clarifies that GPT-4.5 is not its most advanced model for now. Today we’re releasing a research preview of GPT-4.5—our largest and best model for chat yet. Rolling out now to all ChatGPT Pro users, followed by Plus and Team users next week, then Enterprise and Edu users the following week. pic.twitter.com/br5win5OEB — OpenAI (@OpenAI) February 27, 2025 Announcing the new mode and acknowledging that it is different, Open AI CEO Sam Altman wrote on X (formerly Twitter), “this isn’t a reasoning model and won’t crush benchmarks. it’s a different kind of intelligence and there’s a magic to it i haven’t felt before. really excited for people to try it!” GPT-4.5 is ready! good news: it is the first model that feels like talking to a thoughtful person to me. i have had several moments where i've sat back in my chair and been astonished at getting actually good advice from an AI. bad news: it is a giant, expensive model. we… — Sam Altman (@sama) February 27, 2025 Here’s all we know so far. GPT-4.5 - Smarter, More Natural Model OpenAI acknowledges that its model lineup can be confusing and GPT-4.5 doesn’t change that. While it’s the newest model, OpenAI’s o3 reasoning model remains its most powerful. The company describes GPT-4.5 as a research preview rather than a frontier model. A bigger change is expected later this year with the release of GPT-5, which aims to combine fast chat responses with deeper reasoning without switching models. OpenAI new model GPT-4.5. (Image credit - Open AI on X) For now, GPT-4.5 replaces GPT-4o, bringing more accuracy, fewer hallucinations and better emotional intelligence. OpenAI highlights that GPT-4.5 is more conversational, it may encourage dialogue rather than just providing answers. It’s also more concise and natural-sounding, making conversations flow better. For now, GPT-4.5 is available to Pro users on the $200/month plan. However, more users will get access soon. The plans with the timeline are as follows - Next week: ChatGPT Plus ($20/month) & Team subscribers Following week: Enterprise & Education users Check out Live Stream - Ex-OpenAI Leaders Are Building New AI Startups While OpenAI continues to push forward, several of its former key figures have left to create their own AI startups, many of which are attracting massive investments. One of the most notable ventures is Thinking Machines Lab, founded by Mira Murati, OpenAI’s former Chief Technology Officer. She has brought along more than 30 AI experts from OpenAI, Meta, and Google DeepMind. Co-founders include Lilian Weng, who previously served as OpenAI’s Vice President of AI Safety, and John Schulman, a former researcher at Anthropic. Describing its focus areas, Thinking Machines Lab mentions, “While AI capabilities have advanced dramatically, key gaps remain. The scientific community’s understanding of frontier AI systems lags behind rapidly advancing capabilities. Knowledge of how these systems are trained is concentrated within the top research labs, limiting both the public discourse on AI and people’s abilities to use AI effectively. And, despite their potential, these systems remain difficult for people to customize to their specific needs and values. To bridge the gaps, we’re building Thinking Machines Lab to make AI systems more widely understood, customizable and generally capable. Emphasis on human-AI collaboration. Instead of focusing solely on making fully autonomous AI systems, we are excited to build multimodal systems that work with people collaboratively.” “More flexible, adaptable, and personalized AI systems. We see enormous potential for AI to help in every field of work. While current systems excel at programming and mathematics, we’re building AI that can adapt to the full spectrum of human expertise and enable a broader spectrum of applications,” it further adds. The company is focused on multimodal AI with practical applications and is reportedly raising $1 billion at a $9 billion valuation. Another major startup is Safe Superintelligence (SSI), co-founded by Ilya Sutskever, OpenAI’s former Chief Scientist. He is joined by Daniel Levy, an ex-OpenAI researcher, and Daniel Gross, who previously led Apple’s AI projects. SSI raised $1 billion in September 2024 and is now reportedly seeking another $1 billion at a staggering $30 billion valuation. SSI explains its purpose: “Building safe superintelligence (SSI) is the most important technical problem of our time. We have started the world’s first straight-shot SSI lab, with one goal and one product: a safe superintelligence. It’s called Safe Superintelligence Inc.” “SSI is our mission, our name, and our entire product roadmap, because it is our sole focus. Our team, investors, and business model are all aligned to achieve SSI. We approach safety and capabilities in tandem, as technical problems to be solved through revolutionary engineering and scientific breakthroughs. We plan to advance capabilities as fast as possible while making sure our safety always remains ahead,” it adds. Meanwhile, Eureka Labs was founded by former OpenAI scientist and Tesla AI director Andrej Karpathy, and is working on an AI-native educational platform. Karpathy, a founding member of OpenAI, has been developing Eureka Labs since 2024, aiming to reshape the future of AI-driven education. Announcing its mission, Eureka Labs writes, “How can we approach an ideal experience for learning something new? For example, in the case of physics one could imagine working through very high quality course materials together with Feynman, who is there to guide you every step of the way. Unfortunately, subject matter experts who are deeply passionate, great at teaching, infinitely patient and fluent in all of the world’s languages are also very scarce and cannot personally tutor all 8 billion of us on demand.” With these former OpenAI leaders branching out, the competition to define the next wave of AI advancements is more intense than ever. FAQS Q1. What improvements does GPT-4.5 bring over previous models? Answer. GPT-4.5 brings better accuracy, fewer hallucinations, and improved emotional intelligence. Q2. Is GPT-4.5 the most advanced model by OpenAI? Answer. No, GPT-4.5 is not OpenAI's most advanced model. The o3 reasoning model remains the most powerful. Q3. How is GPT-4.5 described in terms of conversational abilities? Answer. GPT-4.5 is more conversational, concise, and natural-sounding, encouraging dialogue rather than just providing answers. Q4. When will GPT-4.5 be available to a wider audience? Answer. Initially available to Pro users, GPT-4.5 will soon be accessible to ChatGPT Plus, Team subscribers, Enterprise, and Education users. Also Read: OpenAI Launches O3 Mini: A Fast and Affordable AI for STEM and Coding Also Read: ChatGPT on WhatsApp to Read Voice Notes and Analyse Images – Here’s How to Use It

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