Phelim Bradley
@Phelimb
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CEO @Prolific https://t.co/hmoUnNjHDh
London, England
Joined February 2011
Fresh HUMAINE results are here. @GeminiApp 3 is still first, but @MistralAI Large 3 and @deepseek_ai v3.2 are making things interesting. Interestingly, Claude Opus 4.5 didn't dominate, but likely a signal that @AnthropicAI is prioritizing complex reasoning/coding over the
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The UK is the best place for AI talent in the world. We just need a vibe shift... Thank you to AI Minister @KanishkaNarayan for joining us and some of the UK's top AI founders for breakfast. Kanishka has been moving at a blistering pace rarely seen in govt since his
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🚨 New today in @ScienceMagazine !!🚨 We’re publishing the results of the largest AI persuasion experiments to date: 76k participants, 19  LLMs, 707 political issues We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more… 🧵:
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On @MLStreetTalk, Prolific CEO @Phelimb notes that maintaining the human element in AI development processes involves building a direct connection between those collecting data and the participants providing it. 🎥 Full episode here → https://t.co/CV56OXoMJq
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The biggest hoax in euro tech right now is that you need to move to the US to make it. Yes the bay area is great and defo a place to learn and over time build a team there as you scale. No doubt the 50y of tech expertise and talent density need to be leveraged. No place like it
The fastest growing company of all time is being built in Europe. Don't fall for the propaganda that you can't build amazing companies here. @vriparbelli is doing it with @synthesiaIO
@nicolasosharp is doing it with @attio
@alanchanguk is doing it with @fuseenergy
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The Prime Minister did a great thing commissioning John Fingleton’s nuclear review - and John has delivered a radical, detailed and grounded recipe for reigniting growth. We now need to implement all its recommendations asap. Pleased to sign this letter of support👇
Over 50 leading CEOs, entrepreneurs and experts are demanding the Government ACCEPT ALL the Nuclear Review recommendations. As the Budget approaches, this is how the PM and Chancellor can cut the cost of living and save British industry. Sign and share our letter 👇
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Important new paper from Sean Westwood on the risk of LLMs to modern online sampling. He shows that a tailored agent can now mimic a human participant in an online study, which is a stark warning and should be viewed as a call-to-arms to the research community to find new methods
AI presents a fundamental threat to our ability to use polls to assess public opinion. Bad actors who are able to infiltrate panels can flip close election polls for less than the cost of a Starbucks coffee. Models will also infer and confirm hypotheses in experiments. Current
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Very important paper from Sean Westwood demonstrating that agents can now effectively mimic human participants in online data collection. I'm more optimistic, though. These challenges are tractable. Ensuring we have high integrity, authentic, auditable data collection will force
prolific.com
Discover how Prolific's data quality system, Protocol, sets industry standards for authentic human data collection
AI presents a fundamental threat to our ability to use polls to assess public opinion. Bad actors who are able to infiltrate panels can flip close election polls for less than the cost of a Starbucks coffee. Models will also infer and confirm hypotheses in experiments. Current
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Very important paper from Sean Westwood demonstrating that agents can now effectively mimic human participants in online data collection. I'm more optimistic, though. These challenges are tractable. Ensuring we have high integrity, authentic, auditable data collection will force
prolific.com
Discover how Prolific's data quality system, Protocol, sets industry standards for authentic human data collection
AI presents a fundamental threat to our ability to use polls to assess public opinion. Bad actors who are able to infiltrate panels can flip close election polls for less than the cost of a Starbucks coffee. Models will also infer and confirm hypotheses in experiments. Current
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Here's a chart of the marginal tax rate for someone with two kids. They pay 53% tax on every ÂŁ they earn between ÂŁ60k and ÂŁ80k. 62% on every ÂŁ they earn between ÂŁ100k and ÂŁ125k. 9% more if they've a student loan (See all the detail in our calculator, pinned to my profile)
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This is important data: tech adoption is a huge driver of economic growth and we’re falling behind, even among startups👇
An interesting trend we're noticing at Stripe: US startups are pulling ahead of their peers elsewhere. These charts show averaged revenue growth for software startups in each location. US startups typically grow somewhat faster than those elsewhere. However, since mid-2023, US
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Very fun conversation with @ecsquendor !
Why Humans Are Still Powering AI - an excellent interview with @Phelimb on @MLStreetTalk
https://t.co/Pvpe5bw7GS cc @Prolific
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Matt’s full speech here. Very much worth 14 minutes of your time. As a friend said to me this morning: “it genuinely did make me feel hope”.
The UK is a great country with an extraordinary history. Our stagnation is real, but it's fixable and worth fixing. Enjoyed giving this talk at @lfg_uk last week and so encouraged by the optimistic responses I've had from people who are building a brilliant future for Britain 🚀
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Agree with @matthewclifford - the UK can and should be rich again. The next decade’s growth will come from a handful of tech companies being built today. Our choice is simple... capture the value from our world-class universities and startup ecosystem - or watch every great
"Whatever you care about, whatever your vision for this country, it will be much easier to achieve it if we make the UK rich again." @matthewclifford at LFG: Make or Break 🚀
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Read line by line this by @collision. Every Irish person should read it. It identifies cause, culprits & solutions. Make no mistake, Ireland is going backwards quickly % the world isn't waiting for us. Brilliant insights from a man who has done things. https://t.co/2UBbw6Ykwb
irishtimes.com
The Stripe co-founder looks at how the State can get out of the government-by-agency corner into which it has painted itself
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Good top three: 1. Planning reform to allow housebuilding 2. Environmental regulation reform to allow transport infrastructure 3. More cheap nuclear energy
NEW: Today we release the results of the @britishprogress Growth Survey. We asked over 100 economists and experts what the Government needs to do to fix productivity and drive growth. Here’s what they said: 🧵
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GDP up: 1.2% Triple lock up: 4.7% Someone help me budget this my public finances are dying.
NEWS. The State Pension is set to rise 4.7% next April. We know this as it is 'triple locked', ie rises by the higher of 2.5% or inflation or average earnings rise. The final figure has just come in, for earnings up to July and it's the highest of the three, at 4.7%. So based on
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We just launched HUMAINE: one of the largest & most rigorous human-driven AI benchmarks. 100K+ blind user evaluations on representative US and UK populations. Key finding: Model preference varies across different demographics, age groups, and evaluation metrics. Overall user
huggingface.co
Introducing HUMAINE: the LLM benchmark that puts real human experience first 🎯 21,352 human evaluators. 27 models. 22 demographic groups. 5 evaluation dimensions. In partnership with @huggingface. See insights below 🧵
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British NIMBYism is truly a sight to behold. “We are rejecting this solar farm, because one time I saw an electric vehicle on fire, which reminded me that decades ago a coal mining disaster killed lots of children”.
A solar farm that could have powered “all the households in Witney” has been refused permission by West Oxfordshire District Council. Councillors cited the risk of fire, one drawing parallels to the Aberfan disaster: “Until someone can guarantee it is safe, I can’t support it.”
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