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YC

Y Combinator Cast

03/11/25

@ Y Combinator

GPT-4.5 shows that scaling unsupervised learning continues to yield valuable improvements in accuracy, emotional intelligence, and creativity, even if these gains are now more incremental than before.

Video

GPT-4.5 = Big Model Energy | YC Decoded

@ Y Combinator

GPT-4.5 = Big Model Energy | YC Decoded

03/11/25

Related Takeaways

Y Combinator Cast

03/11/25

@ Y Combinator

GPT-4.5 is OpenAI's largest and most humanlike model to date, representing a significant step in scaling up unsupervised learning and achieving a deeper understanding of the world and human experience.

Y Combinator Cast

03/11/25

@ Y Combinator

GPT-4.5 is potentially more than 10 times the size of GPT-4, representing a step forward in both pre-training and post-training processes.

OpenAI Cast

04/11/25

@ OpenAI

User satisfaction shows that GPT-4.5 is smarter in subtle ways, demonstrating more common sense and understanding of nuance and context.

Y Combinator Cast

03/11/25

@ Y Combinator

According to OpenAI researchers, GPT-4.5 stands out for its emotional intelligence, allowing for deeper conversations and a better understanding of human needs and requests.

Y Combinator Cast

03/11/25

@ Y Combinator

Evaluations of GPT-4.5 rely on feedback from human testers to assess its performance in subjective areas like writing quality and emotional intelligence.

OpenAI Cast

04/11/25

@ OpenAI

In testing GPT-4.5, we found it has nuanced abilities that were unexpected, indicating it is more intelligent in ways that are hard to characterize ahead of time.

OpenAI Cast

04/11/25

@ OpenAI

The defining characteristics of the GPT paradigm are that you can predict the test loss, and it scales predictably, leading to greater intelligence in various intangible ways.

Y Combinator Cast

03/11/25

@ Y Combinator

GPT-4.5 excels at natural conversation, creative tasks, and complex planning, while also hallucinating far less than previous models.

Y Combinator Cast

03/11/25

@ Y Combinator

GPT-4.5 is more trustworthy for general inquiries compared to GPT-4, excelling in creative tasks like drafting emails, generating imaginative stories, and telling jokes.