Dex @dexbythirdlayer
The AI browser copilot. YCW25. By https://t.co/tp48I0vBul joindex.com SF Joined January 2025-
Tweets51
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Followers482
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Following16
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Likes112
Can’t blame @browsercompany for getting so scared after the browser wars dropped yesterday that they quit. I’d like to personally apologize to all the designers and engineers who are now fated to crumble slowly into b2b SaaS…. jokes aside how ironic that the company behind…
Can’t blame @browsercompany for getting so scared after the browser wars dropped yesterday that they quit. I’d like to personally apologize to all the designers and engineers who are now fated to crumble slowly into b2b SaaS…. jokes aside how ironic that the company behind… https://t.co/j2nmRKqMqK
$1 browser extension vs. $1B AI browser. 2 founders vs. 100s of engineers. Who do you think won? We had @Im_Rich_Zou & Martina run the same prompt on Comet vs. Dex by ThirdLayer (YC W25) @dexbythirdlayer The space is heating up fast 😋 🚨Try it yourself at…
We hosted the first & largest performative male contest in SF, with 1000+ turnout, 2M+ online views, featuring performative.lol, the computer vision model + AI rater I built to rate your performity as the first AI judging round. Huge love to our main sponsors for powering…
The #1 question I get from younger founders going into YC is this: “If you could do YC over again, what would you do differently?” Here’s what I’d tell myself Day 0 👇
Paul graham said the best startup ideas have 3 things in common. They’re something that: - the founders themselves want - they themselves can build - few others realize are worth doing look at me on last week’s leaderboard as #1 dex power user 😎 think we just might have all…
Research used to mean: – 15+ tabs – 3 papers half-read – A spreadsheet you lie to yourself about finishing Now it’s: 15+ tabs → Dex → summaries, plain-English breakdowns, spreadsheets auto-filled in minutes. Work smart or keep drowning in tabs. Your call.
Cold emails with 0% response rates? We solved that. Dex finds real connections, automates research, and sends personalized outreach at scale. Get your time back.
wow. this is peak enablement. was able to draft dozens of enriched custom outbound emails with 1 prompt in under 1-2 min. our ops intern sent 300 personalized alumni emails this morning in ~15 min. no need to set up crms, clay, email, linkedin automations at all. lmk if…
What if you could get 5 hours of your life back every week? Come hang at ThirdLayer (YC W25) HQ and see how AI is about to change the way you work. We're keeping it small and intentional. Expect: ⚡ Discussions on agent infrastructure and proactive UX ⚡ Live demo of Dex v0 —…
why is AI - stuck in chat? - fixated on one-shotting tasks? - always booking flights/making dinner plans? Introducing Dex v0. The world's first AI browser copilot. The bottleneck is not the model. (our CTO disagrees) It’s the lack of imagination. @dexbythirdlayer - actually…
Wake up babe new Perplexity Comet system prompt just dropped
Dex can pull any information from your LinkedIn tabs into Google Sheets, search missing columns, and add more notes. In the exact format you desire. We’re currently testing out more workflows — if you have an interesting use case or want early access, comment below/DM.…
I quit my internship at the largest investment bank in Latin America to join a bunch of dropouts building startups. Why? Steve Jobs inspired me to stay hungry (and so did Regina Lin, as she starves her interns). @dexbythirdlayer is rebuilding the internet, intelligence first.
5 Startups Drew Major VC Buzz 🔥 - @cline (🔥 featured 4× in 90 days) - @dexbythirdlayer (🔥 featured 8× in 90 days) - Beyond Work (🔥 featured 7× in 90 days) - @_amankishore (🔥 featured 4× in 90 days) - @unltdindustries (🔥 featured 5× in 90 days)
📈 BUSINESS OPERATIONS • @NimbicAI: Automatically write internal docs with code commits • opusense.com: AI for field inspection reports • @dexbythirdlayer: Multimodal AI browser copilot • @StampMail: AI-native email client
Armand Iorgulescu @armandiorg
7 Followers 21 Following consistently curious and stubbornly optimistic @harvard
Shichao @wshichao
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Ivan Glushenkov @conffused_soul
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Mischa @MischaLamoureux
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Next Generation Consu... @NextGenCon21
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Connor Jewiss @connorjewiss
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Oleg Viatkin @notolegv
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Nishanth PS @nishanthps
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georgi's listening to... @georgiisat
1K Followers 4K Following i’m not a poet, i’m just a woman 🏳️🌈 🩷💜💙💚💛☀️ tostaccino's official ambassador - libra - swiftie ❤️🔥- building the apple of medtech from 0 🩵🚀 AIKEAAS
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Hans @Hans365days
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Harshit Satija @harshitsatija
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Daniel @d2ac__
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charlie @rcweston
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7K Followers 3K Following Writing about narratives on crypto projects. Currently exploring @megaeth_labs | OB @azuki | holder @pudgypenguins
Daniel Martinez @coderpr0grammer
1K Followers 373 Following 🇨🇦🇨🇴 18, kicked out of high school for building ai for teachers @vibegrade. Backed by @ycombinator
Raghav Pillai @rag_pil
427 Followers 254 Following i like building cool things. founder @speck_ai (yc w24), former @anduriltech @amazon
Kevin Gu @gukevinr
52 Followers 146 Following building @dexbythirdlayer (yc w25) / prev math & stat @harvard / @jumptrading @meta
Julia Alvarenga @juliaalvarengas
116 Followers 20 Following econ + cs @ harvard | growth @ thirdlayer (yc w25)
Martin @2019martinlee
74 Followers 106 Following ex - @apple @netflix | @ycombinator startups | @usccinema alum | @martinstartupmedia Road to $100K MRR
Product Hunt 😸 @ProductHunt
555K Followers 528 Following The place to find your new favorite product 🚀 Get new products in your inbox: https://t.co/uLj6s6LIgw
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parth @parth220_
1K Followers 1K Following Spiritual Ronin | agent whisperer @hud_evals, yc w25, human @earth | 👨🏽💻⚡️🌱
Andrej Karpathy @karpathy
1.4M Followers 1K Following Building @EurekaLabsAI. Previously Director of AI @ Tesla, founding team @ OpenAI, CS231n/PhD @ Stanford. I like to train large deep neural nets.
Regina Lin @reggitales
929 Followers 255 Following ceo @dexbythirdlayer • math & cse @harvard • building interfaces to expedite thought to action
Roman Tesliuk @RomaTesla
4K Followers 401 Following Designing at @elevenlabsio. Building https://t.co/nozre3RTEp, https://t.co/tpJ9p3peOE & https://t.co/vwnA4rldfNTrends for United States
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