First: Co-Founder @Founders_Makers Next: Special Adviser to @RishiSunak Now: Head of Executive Digital Comms @Google

Joined June 2011
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Cassian Horowitz retweeted
I am hiring a couple of interns to join the Google AI Studio team across product, AI eng, vibe coding, developer experience, etc. Send me a DM with things you have built if you’re interested!
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Cassian Horowitz retweeted
Check now 😀
19 Nov 2025
I'm studying but I keep coming back to X every 2 minutes because I need to check if Google released Nano Banana Pro or not
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Cassian Horowitz retweeted
Geminiii
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That explains that then
On the anniversary of the sinking of the Titanic, we thought we'd answer a question that's often asked, "If they raised the Mary Rose, why not raise the Titanic?" Allow our scaled diagram to explain...
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From Westminister to Warsaw 👀
Od Anglików kopiuje spoty - a od @pisorgpl poglądy. Rafał #KopiujWklejowski2025
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And YouTube beats both…
📺 Netflix viewers overtake BBC One for first time telegraph.co.uk/news/2025/01…
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As good as any Christmas ad you’ll watch this year @stoolpresidente

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Great to speak to @MattChorley on why we were right to invite @elonmusk to the ai safety summit. How our 'in conversation' livestream came about (now on 25m views x.com/elonmusk/status/172018…) and whether or not Labour can ever win him back...

What’s @elonmusk really like? And why is he posting so much about British politics? Fascinating chat with @CassHorowitz who worked on the AI summit Plus @emilybell & @telliotter on how much notice we should take From 1:07 bbc.co.uk/sounds/play/m0025c…
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The Matt Hancock app was ahead of its time.
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It might not even have a building yet but DOGE already has an official X account. Giving 'digital first' government a whole new meaning...
Working overtime to ensure your tax dollars will be spent wisely!
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The Guardian coming off X gives me a good reason to post this all-time great ad of theirs from a few years back. For me their decision goes against the message in this ad - 'Hope is Power'
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Trump’s campaign tapped into the creator economy in a big way—live streamers, podcasters, you name it. His team knew exactly where to reach the audience they were after. Future campaigns around the world are sure to follow suit.
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A good idea that will no doubt face a lot of resistance in Whitehall In too many departments digital is still seen as an afterthought and as a result quality of strategy & output varies massively Centralising campaign digital a step in the right direction but lots more to do
EXC: A new digital unit is being launched by No 10 – the New Media Unit – as Morgan McSweeney moves to take central control of govt communications Based in the Cabinet Office, No10 hopes it can sidestep the “Westminster bubble” with a focus on platforms like Instagram and TikTok
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What a journey, thank you @RishiSunak
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Cassian Horowitz retweeted
23 May 2024
This is what this election is all about 👇
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