Haydn Belfield (@haydnbelfield) 's Twitter Profile
Haydn Belfield

@haydnbelfield

Research Scientist (Frontier Planning) at @GoogleDeepMind.
Research Affiliate @Cambridge_Uni @CSERCambridge & @LeverhulmeCFI.
All views my own.

ID: 1444796238

linkhttp://www.haydnbelfield.com calendar_today20-05-2013 21:25:28

18,18K Tweet

5,5K Followers

2,2K Following

Michel (@justenmichel) 's Twitter Profile Photo

Applications close May 31st for Tarbell Grants! Journalists, we're still accepting pitches on five critical AI beats. Some possible story directions in 🧵

Applications close May 31st for Tarbell Grants! 

Journalists, we're still accepting pitches on five critical AI beats. 

Some possible story directions in 🧵
Matthijs Maas (@matthijsmmaas) 's Twitter Profile Photo

reminder that there is three more days to apply for our Institute for Law & AI and Future Intelligence Cambridge summer workshop (Aug 6-8) on Law-Following AI, where we'll explore the question of how to design agentic AI systems that reliably follow the law law-ai.org/event/workshop…

Julian (@mealreplacer) 's Twitter Profile Photo

🔥 We're hiring 🔥 Come work with me on the Open Philanthropy AI safety team! You'd make grants to projects aiming to make AI safer and more secure. You'd also do other cool stuff (see link below). $136k to $186k total comp. Ideally based in SF but open to other locations.

🔥 We're hiring 🔥

Come work with me on the <a href="/open_phil/">Open Philanthropy</a> AI safety team!

You'd make grants to projects aiming to make AI safer and more secure. You'd also do other cool stuff (see link below).

$136k to $186k total comp. Ideally based in SF but open to other locations.
Haydn Belfield (@haydnbelfield) 's Twitter Profile Photo

Richard Rhodes is such a master - this is his description of the first hydrogen bomb explosion - the Ivy Mike test. I feel like I can see the colours and feel the heat. -- Once the explosion broke through the casing, it expanded in seconds to a blinding white fireball more than

Richard Rhodes is such a master - this is his description of the first hydrogen bomb explosion - the Ivy Mike test. I feel like I can see the colours and feel the heat.

--

Once the explosion broke through the casing, it expanded in seconds to a blinding white fireball more than
AI Security Institute (@aisecurityinst) 's Twitter Profile Photo

We’ve written a safety case for safeguards against misuse, including a methodology for connecting the results of safeguard evaluations to risk estimates🛡️ This helps make safeguard evaluations actionable, which is increasingly important as AI systems increase in capability.

We’ve written a safety case for safeguards against misuse, including a methodology for connecting the results of safeguard evaluations to risk estimates🛡️

This helps make safeguard evaluations actionable, which is increasingly important as AI systems increase in capability.
Benjamin Hilton (@benjamin_hilton) 's Twitter Profile Photo

Come work with me!! I'm hiring a research manager for AI Security Institute's Alignment Team. You'll manage exceptional researchers tackling one of humanity’s biggest challenges. Our mission: ensure we have ways to make superhuman AI safe before it poses critical risks. 1/4

Demis Hassabis (@demishassabis) 's Twitter Profile Photo

Happy to share that we’re giving UK uni students access to our best models - including Gemini 2.5 Pro and NotebookLM. They’re amazing tools for research, writing, exam prep… I wish I’d had them while I was at uni :) Enjoy, and good luck with this exam season!

The Centre for Long-Term Resilience (@longresilience) 's Twitter Profile Photo

Are you passionate about AI and policy development? We’re looking for a dedicated individual to join our AI Policy Unit and help shape the future of AI policy. Interested? Apply by 9 June 2025 buff.ly/DsjCKnb

Charles Foster (@cfgeek) 's Twitter Profile Photo

It’s now common to talk of algorithmic progress via “How much extra compute does this innovation give you, in effect?” (i.e. compute multipliers). But in the current regime, I think the value-tracking question is “How much extra labor does this innovation give you, in effect?”.

It’s now common to talk of algorithmic progress via “How much extra compute does this innovation give you, in effect?” (i.e. compute multipliers). But in the current regime, I think the value-tracking question is “How much extra labor does this innovation give you, in effect?”.
Luke Frymire (@lukefrymire) 's Twitter Profile Photo

Shameless moment of appreciation for Epoch: we put out four research pieces today alone, and we’ve been averaging about one every other day lately. In my previous job, I worked on the same research for 1.5 years, and it is still not published a another 1.5 later.