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Fri. 10/28 – GPT-4.5
Feb 28, 2025
OpenAI introduces GPT-4.5, emphasizing it's not the final frontier model but a significant development in AI technology. Microsoft plans to shut down Skype, pushing users towards Teams, revealing the service's decline. Meanwhile, SEC declares most memecoins aren't securities, impacting the crypto landscape. In illicit transactions, stablecoins are now predominant. And in an innovative twist, NYC’s subway system is employing Google Pixels for more effective track maintenance, marking a leap in urban infrastructure efficiency.
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Quick takeaways
- OpenAI's GPT-4.5 demonstrates enhanced efficiency and knowledge but is not a major upgrade over previous models, reflecting infrastructure challenges.
- Microsoft's decision to retire Skype underscores a strategic shift towards Teams, prompted by declining user engagement and competition in communication services.
Deep dives
Launch of GPT 4.5 by OpenAI
OpenAI has introduced GPT 4.5, which they describe as their most knowledgeable model to date, emphasizing that it is not a frontier model. While it boasts enhanced writing capabilities, improved world knowledge, and a refined personality, its performance is reported to be below that of earlier models like O1 and O3 Mini. The substantial computational efficiency improvements are noted, with a tenfold increase over GPT-4, yet it does not introduce significant new capabilities. This rollout was somewhat staggered due to GPU shortages, highlighting OpenAI's rapid growth and the associated challenges in infrastructure development.
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