AI Founder Weekly

A three-week-old model raised an $870M Series A

Diogo Almeida says his team launched a model, accidentally served trillions of tokens a day, and watched 29.4% of the Fortune 500 turn up. That was three weeks ago.

Real money

Diogo Almeida says 29.4% of the Fortune 500 showed up three weeks after launch

Diogo Almeida says his team launched a model, accidentally served trillions of tokens a day and had 29.4% of the Fortune 500 show up, plus raised a really big Series A from a16z, all inside three weeks. He doesn't name the company or share revenue.

Diogo Almeida
@CompleteSkeptic
X
it's been 3 weeks we would like to sleep now
Oct 9, 2026 · View on X

Read the full story

Marc Lou open-sources his Beehiiv replacement at $0.10 per 1,000 emails

Marc Lou open-sourced MailCheap, the self-hosted newsletter tool he vibe-coded last week, after people asked for it. He says it runs on Amazon SES at $0.10 per 1,000 emails, which is 92% cheaper than Beehiiv for him, and includes an editor, signup forms, a public archive and list cleanup.

Marc Lou
@marclou
X
Newsletter platforms charge per subscriber, when in fact the real cost is the number of emails sent.
Oct 9, 2026 · View on X

Read the full story

Rauch says 60% of Vercel deployments are now agentic, up from 3% in January

Guillermo Rauch posted Vercel's machine traffic numbers: 58.18% of traffic across the network is bot-originated over the last 30 days, against 32% in January 2024, and over 60% of deployments are agentic, up from about 3% in January 2026. He says up to 83% of pageviews on Vercel's own docs come from agents, and that the share climbs the more they optimize content for them.

Guillermo Rauch
@rauchg
X
I expect 'direct' human internet traffic to basically become a rounding error in coming years.
Oct 10, 2026 · View on X

Read the full story

Get the next one by email

Founders building with AI, every day. Real revenue, real pricing, real launches and what they would redo. No hype sludge. Every number links out.