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Tom Chivers

Verified
London
As seen in: Semafor, Apple Podcasts, CNN, CNN en Español, MSN UK, Yahoo Entertainment, Yahoo Life, The Guardian, The Independent (UK), The Telegraph, Yahoo News and
"Far too nice to be a journalist": Terry Pratchett. Lead writer, Flagship. Semafor. chiversthomas(a)gmail. Third book, Everything is Predictable, out now!
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Articles

OpenAI’s new Astra model has private thoughts

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By Tom Chivers Verified
| Semafor Verified
OpenAI’s latest model, Astra, does more thinking beyond human oversight, boosting capabilities but raising concerns about loss of control. Existing frontier AI models use “chain of thought” reasoning: They write ideas down, in English, in a “scratchpad” to keep track. CoT boosts “interpretability” — meaning humans can follow their thinking.
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US President Donald Trump imposes 100% tariff on drones

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By Tom Chivers Verified
| Semafor Verified
US President Donald Trump imposed up to 100% tariffs on drones, targeting Chinese-made models in particular over national security concerns. China’s DJI alone accounts for more than 70% of the global market, and US law enforcement uses its devices to track wildfires and find missing persons. But drones are also increasingly vital for military purposes: Regulators effectively barred the sale of new models in December over national security concerns.
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Experts warn of threats of AI bioterrorism

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By Tom Chivers Verified
| Semafor Verified
Tech firms are scrambling to reduce the threat of AI-driven bioterrorism, the Financial Times reported. AI models are increasingly powerful bioscience tools, already speeding up drug discovery. But as with cybersecurity, those capabilities are dual-use: Information used to make a vaccine can also “create a bioweapon,” one Google DeepMind researcher told the FT, and any advances raise the risk of misuse.
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