Benazir

@harpriiya @a16z @speedrun we all need hotbox!

I can finally talk about this!! Hotbox is backed by @a16z @speedrun :) I spent the last 14 months in Korea and now I’m back in SF, where it all began. My entire career exists because of social media. From early NeurIPS papers, to working on ranking algorithms, and then building viral playbooks for startups. The thing I kept coming back to is: every company has no choice but to become a media company. To distribute. To get attention. That is the next generation of entrepreneur’s biggest challenge. That’s the next single person unicorn’s moat. Hotbox is built for that next gen entrepreneur. Businesses run entirely on social now. Hotbox is the sales infra for the social economy. more to come. sign up on our waitlist & lmk if you’ll be at the a16z speedrun demo day 🤫

@audrlo go @quolabsai !!

we are launching tomorrow. stay tuned.

@Celesteamadon Hahahahah, good one!

Behind the scenes at Known HQ. Episode 2: Meet Rick - your line of defense against love bombing and catfishing

2 years ago we were exploring San Francisco for the first time, today we are backed by a16z @speedrun New to the city. No map. Just walking around taking it all in. We turned a corner and boom, there's the @a16z office. Neither of us said anything for a second. Then promise with @benaziration: "Let's walk through those doors one day as founders of a great company." We took a photo of the building and kept walking. March 2026: @siriusai is backed by a16z speedrun In between? We built Sirius from scratch. The retention platform for subscription brands. Talked to customers constantly. Threw out what didn't work. Bet harder on what did. Had weeks where we honestly weren't sure. Kept going anyway. The first photo is us. Inside Speedrun. March, 2026. The second one is that building. October, 2024. I still can't fully believe it. Two founders exploring a new city and somehow the city showed us exactly where we needed to go. If you're a founder out there grinding right now, seriously, keep going. You don't know what's waiting around the next corner. We're just getting started 🚀

@ChiefSnack @speedrun @a16z git commit -am "Promise kept. Shipping." git push origin a16z/speedrun

@michaelsshang Wowwwww!!!! 🔥🔥🔥🔥

𝐈𝐧𝐭𝐫𝐨𝐝𝐮𝐜𝐢𝐧𝐠 𝐒𝐨𝐮𝐥𝐋𝐢𝐧𝐤, 𝐀 𝐍𝐞𝐰 𝐄𝐫𝐚 𝐨𝐟 𝐂𝐨𝐦𝐩𝐚𝐧𝐢𝐨𝐧𝐬𝐡𝐢𝐩. A beautiful life, unfolding next to you. Try free at getsoullink.com

@custo_lejla 🔥❤️❤️❤️🔥

So excited to be working with you guys! And can't wait for the AI Faire this Friday 🚀

@siriusai @speedrun Can’t wait! 🔥🔥🔥

There’s a specific kind of magic that happens when you put builders who care in one room. We’re honored to be showing Sirius alongside some of the brightest companies at @speedrun See you at the AI Faire. RSVP link in thread below!

just move to SF

@elkelk Hard disagree, @intro worth it! 15 mins of targeted advice is cheaper than making a six-month mistake

If I found out that a founder I invested in was paying for 1:1s with random founders/partners off a twitter ad I am pulling all my funding

We’ve identified industrial-scale distillation attacks on our models by DeepSeek, Moonshot AI, and MiniMax. These labs created over 24,000 fraudulent accounts and generated over 16 million exchanges with Claude, extracting its capabilities to train and improve their own models.

Mr @TimDraper and I

Alysa Liu won the gold medal ❤️🇺🇸❤️ I genuinely loved her performance, felt real and so confident!

Moms are moms ❤️

@andrewchen Time to build! Amazing opportunity 🔥

a16z Speedrun Alpha, for pre-idea/pre-team/pre-everything founders it's time to bet on yourself, and figure out your startup idea. 2026 is well underway, crazy stuff happening in AI, and you're building agents/apps/whatever every night+weekend. You want to start a startup but you're working or still going to school. what if you're pre-idea, pre-product, pre-launch, and even a solo founder? You need time to cook The Alpha Fellowship is for you. alpha.a16zspeedrun.com details: - $20K equity-free upfront to start building - up to $250K investment when you finalize - automatic final interview for a16z speedrun, with up to $1M investment - 8-week, in-person experience with a kickoff retreat, founder AMAs, and small-group dinners alongside the a16z speedrun community - targeted to early-career highly technical founders - deadline to apply is March 6 We ALSO have a "startup track" for the Alpha Fellowship where you can get more founder experience by working for a portfolio company if you're not quite ready to found something. The Alpha Fellowship places top early-career engineers into full-time roles at fast-growing a16z speedrun and Andreessen Horowitz portfolio companies. For future founders, we provide capital before a team or idea even exists. We're looking for highly technical students and recent grads who don't want to wait to start building. Fellows take full-time roles at fast-growing portfolio companies - or, if you're ready to build now, receive capital to start your own company - kicking off with a two-month in-person fellowship. Fellows also have access to the a16z speedrun and EO Ventures communities and events. ... If this is you, want to meet you. If you have people to introduce us to, that would be amazing too. will have more to say, and lots of ideas coming up here. But excited to get this out! Excited to host y'all soon.

@afterlanie Twins!

i’m not even into astrology but i guess it’s almost pisces season

@benln @speedrun is the GOAT

Which accelerators should every pre-seed founder consider first these days?

@MartinGTobias distribution

Which one do you think matters more? - Funding - Idea - Execution - Timing

a hill i will die on: flow state > work-life balance