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YC

Y Combinator Cast

03/11/25

@ Y Combinator

OpenAI revealed GPT-4.5 as a model capable of reasoning and systematically thinking through complex problems, clearly surpassing GPT-4 in mathematics, coding, and logical tasks.

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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

A model that combines the knowledge and intuition of GPT-4.5 with advanced reasoning capabilities would be exceptionally powerful, making GPT-4.5 a crucial bridge towards that future.

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

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

The era of choosing between broad understanding and powerful reasoning may soon come to an end, as GPT-4.5 provides a glimpse into a future where AI systems combine the best of both paradigms.

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.

Y Combinator Cast

01/24/25

@ Y Combinator

The longer models like GPT-3 are able to think through complex problems, the better they perform.

Y Combinator Cast

03/11/25

@ Y Combinator

Sam Altman has suggested that unsupervised pre-training models like GPT-4.5 and specialized reasoning-focused models will converge into a unified architecture, which we might see in GPT-5.

Garry Tan

01/24/25

@ Y Combinator

OpenAI's release of GPT-2 in November 2019 marked a significant milestone with 1.5 billion parameters, followed by GPT-3, which was over 100 times larger and more capable than its predecessor.

OpenAI Cast

04/11/25

@ OpenAI

The initial goal for GPT-4.5 was to create a model that is ten times smarter than GPT-4, which we ultimately achieved through a complex process.