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OpenAI has launched GPT-4.5, but they want you to know, this is not a frontier model, it’s a stepping stone. Skype enters the Deadpool. Memecoins are ok by the SEC. Most criminality in crypto is now done with stablecoins. And in the Weekend Longreads Suggestions, how the MTA is using Pixel phones to do subway maintenance.
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OpenAI has officially launched GPT-4.5, which is touted as its most knowledgeable model to date but is not termed a 'frontier model.' The model features enhanced writing capabilities and improved world knowledge while focusing on a 'stepping stone' philosophy. OpenAI emphasizes that GPT-4.5 has improved computational efficiency—over 10 times better than GPT-4. Despite this, it doesn't add new frontier capabilities, and the company has staggered its rollout due to GPU shortages. The model is available at a significantly higher cost compared to its predecessor, GPT-4, raising questions about accessibility and its performance on coding benchmarks.
In a major shift, Microsoft has announced that it will retire Skype on May 5, 2025, urging users to transition to Microsoft Teams. The decision marks a significant change for a platform that once dominated online communication. Microsoft cites the need to focus on Teams for innovation and simplification. Users have options to migrate their data or export their Skype contacts before the closure.
Meta is preparing to launch a standalone Meta AI app and trial a paid subscription service as part of its ambition to lead in the AI sector. Currently, Meta AI is embedded within existing apps, but a standalone app could facilitate deeper user interaction. Mark Zuckerberg publicly backed this idea, indicating a direction that fights to keep pace with competitors like OpenAI.
The SEC has clarified that most meme coins are not considered securities, thus removing the necessity for regulation under federal securities laws. This announcement aims to provide a clearer and potentially more favorable regulatory environment for meme coin transactions, especially in the wake of rising popularity and market volatility.
Data from Chainalysis reveals a staggering $40 billion in illicit crypto transactions in 2024, with a shift from Bitcoin to stable coins dominating the landscape. In 2021, Bitcoin represented 70% of these transactions, a figure that has significantly decreased as criminal activity has adapted to the advantages stable coins offer. This evolution indicates changing patterns in illicit financial activities within the cryptocurrency space.
Following investigations into internal leaks, Meta has terminated approximately 20 employees for sharing confidential information. The company is taking steps to mitigate leaks that have recently plagued its operations, especially in light of sensitive product plans and internal discussions. The crackdown on leaks suggests a tightening of security in response to growing public interest.
The episode wraps up with a noteworthy long read on how the MTA is leveraging Google Pixel smartphones for subway maintenance. This experiment has led to the identification of 92% of defect locations on subway tracks using relatively inexpensive technology. The project demonstrates how integrating modern tech with traditional inspection methods can streamline maintenance processes and improve service reliability.
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