Brad Bartelt

building something new

@mit

[frontrun @frontrunvc]

people who left @OpenAI, @spacexai, @stripe and @Tesla to build something new in stealth on X:

1/ @hyhieu226: ex-openai and xai technical staff, google brain researcher, imo silver medalist.

2/ @rochi5ha: 5 years engineering at rippling, then stripe.

3/ @bradbartelt: openai grove incubation, first employee at a16z-backed meridian.

4/ @nickperkins94: tesla battery engineer, then 7 years at form energy.

5/ @vivianphung: ex-instagram feed engineer, founded snowball tools, ceo of dora.

flagged on @frontrunvc stealth discovery lane. 🥷

[Jack Bartelt @jack_bartelt]

I joined Meta over the summer. Flip and I are so pumped to be working with @alexandr_wang and @alexschultz to ship personal super intelligence

[Brad Bartelt @bradbartelt]

welcome to x @jack_bartelt

[Brad Bartelt @bradbartelt]

@alexandr_wang thanks for the token reset, euler 🫶

[darshil @darshil]

quick chat with @sama at the 5.5 party

- 5.5 understands intent really well
- design still has some ways to go
- supports @McLarenF1 🤯🏎️
- best time to join the job market but dynamic

and ofc he likes mangoes 🥭

[Brad Lightcap @bradlightcap]

ryan and team worked extremely hard to make gpt-5.4 great for finance

it's much improved for financial modeling and analysis, integrates directly into excel, and connects to factiva, daloopa, s&p global, and many more

it does feel like a codex moment is coming here

[Brad Bartelt @bradbartelt]

congrats @m_franceschetti! @eightsleep is a rare example of a product where the hardware and software are so tightly coupled that it just feels like magic

[Brad Bartelt @bradbartelt]

We are based in New York and our team is 35+ strong; combining alumni from @AnthropicAI and @scale_AI with former investors and bankers from @GoldmanSachs, @BlackRock, PJT Partners, @jpmorgan, @Lazard, and @KKR_Co . We're hiring.

[Brad Bartelt @bradbartelt]

Spreadsheets power the global financial system. The work behind them is manual. @MeridianAgent is building the AI layer for finance.

We’ve raised $17M at a $100M valuation, led by @a16z and backed by researchers from @OpenAI and @AnthropicAI.

[Brad Bartelt @bradbartelt]

In December alone, we signed $5M in customer contracts. We are working with a top investment bank, as well as teams at @DecagonAI and others.

I joined @jhnling, @Gfang200, and @Zachkirshner as the first @MeridianAgent employee. In the early days, it was just the four of us building out of @OpenAI’s office in San Francisco.

[Brad Bartelt @bradbartelt]

build

[Marc Andreessen 🇺🇸 @pmarca]

LET’S GO.

[Marc Andreessen 🇺🇸 @pmarca]

THAT'S RIGHT.

[Brad Bartelt @bradbartelt]

@riggs_trenton @neil_white_ is this ai or @neil_white_

[Sam Altman @sama]

hot ai summer lfg

[Brad Bartelt @bradbartelt]

z fellows is based. real opportunities to grow and build.

apply now: https://t.co/CUaw38RmzA @zfellows_

[Cory Levy @cory]

"everything around that you call life was made up by people who were no smarter than you" - Steve Jobs

new z fellows cohort starting soon. interviewing now for it.

https://t.co/QoKEaGyKDL

[Jack Altman @jaltma]

Being “good at hiring” means either accurately betting on undiscovered talent or being good at persuading obvious talent.

[Brad Bartelt @bradbartelt]

@rapha_gl rapha for president

[Brad Bartelt @bradbartelt]

@sama did @jaltma take your phone again?

[Brad Bartelt @bradbartelt]

Thank YOU @aliciakeys 💙
So beyond happy my fiancé Jack and my engagement is included in the video! Memories, expression and love are so powerful ⭐️
#KEYSAlbum  #OldMemories

[Alicia Keys @aliciakeys]

Thank you for all the love 💙 here’s to more memories!

#OldMemories #KEYSAlbum