GPT-4.5: OpenAI’s Latest AI Model
GPT-4.5 has Launched
On Thursday morning, OpenAI ominously announced it would host a livestream in 4.5 hours, a hint at its latest and greatest model. During the livestream, OpenAI unveiled GPT-4.5 in a research preview, which the company claims is the "largest and most knowledgeable model yet."
Key Features and Improvements
OpenAI said users should experience an overall improvement when using GPT-4.5, meaning fewer hallucinations, stronger alignment to their prompt intent, and improved emotional intelligence. Overall, interactions with the model should feel more intuitive and natural than with preceding models, mostly because of its deeper knowledge and improved contextual understanding.
Unsupervised Learning and Reasoning
Unsupervised learning, which increases word knowledge and intuition, and reasoning were the two methods driving the model’s improvements. Even though this model does not offer chain-of-thought reasoning, which OpenAI’s o1 reasoning model does, it will still provide a higher level of reasoning with less of a lag and other improvements, such as social cue awareness.
Benchmarks
Across some of the major benchmarks used to evaluate these models, including Competition Math (AIME 2024), PhD-level Science Questions (GPQA Diamond), and SWE-Bench verified (coding), GPT-4.5 outperformed GPT-4o, its preceding general-purpose model.
Security
As always, OpenAI reassured the public that the models were deemed safe enough to be released, stress testing the model and detailing these results in the accompanying system card. The company also added that with every new release and increase in model capabilities, there are opportunities to make the models safer. For that reason, with the GPT-4.5 release, the company combined new supervision techniques with RLHF.
Availability
GPT-4.5 is in research preview for Pro users for now, accessible via the model picker on web, mobile, and desktop. If you don’t want to shell out the $200 for a Pro subscription, OpenAI shared it will begin rolling out GPT-4.5 to Plus and Team users next week, and then to Enterprise and Edu users the week after.
Conclusion
GPT-4.5 is the latest addition to OpenAI’s lineup of AI models, and it promises to be a significant improvement over its predecessors. With its improved emotional intelligence, deeper knowledge, and contextual understanding, GPT-4.5 is poised to revolutionize the way we interact with AI models.
FAQs
Q: What are the key features and improvements of GPT-4.5?
A: GPT-4.5 features improved emotional intelligence, stronger alignment to prompt intent, and reduced hallucinations. It also offers improved contextual understanding and deeper knowledge.
Q: How does GPT-4.5 differ from previous models?
A: GPT-4.5 does not offer chain-of-thought reasoning, but it provides a higher level of reasoning with less of a lag and other improvements, such as social cue awareness.
Q: Is GPT-4.5 available to all users?
A: No, GPT-4.5 is currently available in research preview for Pro users only. OpenAI will roll it out to Plus and Team users next week, and to Enterprise and Edu users the week after.
Q: Is GPT-4.5 safe?
A: OpenAI has deemed GPT-4.5 safe enough to be released, and it will continue to improve its safety features with each new release.
