Marc Lou's $105k October, and Claude edited a vlog
Marc Lou says he closed October at $105,147 across 16 products with zero employees, and MailCheap went from $1k to $2k MRR in six days. Meanwhile levelsio found out his vlog editor is now Claude Code.
Real money
Marc Lou reports a $105,147 October, with MailCheap at $2,050
Marc Lou says October came in at $105,147 across 16 revenue streams with no employees and 90% profit margins, after correcting his own math down from $107,142. TrustMRR did $42,531, DataFast $31,103, Ship or Die $18,990, and the newest line, MailCheap, $2,050. He says MailCheap took 10 days to reach $1K MRR and six more to double it.
you can’t vibe-code a real business
Anthropic rewrote its Messages API in Rust with no Rust devs, report says
@somi_ai, citing Katelyn Lesse on Latent Space, says Anthropic rewrote its Messages API in Rust with zero Rust devs on the team, Claude writing the code while humans wrote the plan and checked old against new on real traffic, and CPU dropped 40 to 50%. swyx, who runs the show, says it is true and that nobody noticed.
Humans wrote the plan and checked old vs new matched on real traffic.
Stolen playbooks
levelsio says one sentence to Claude Code edited his whole vlog
levelsio says he copied clips off his DJI into a folder, opened Claude Code with Opus 5.5 and asked it to edit them into a 10 minute vlog, making only a few adjustments after.
All I asked for was "Claude can you edit these clips into a 10 minute vlog for X and YouTube
What changed under us
758 startups above $1k MRR show revenue slightly declining, Marc Lou says
Marc Lou's read on 758 startups above $1,000 MRR still stands as the week's uncomfortable number: revenue slightly declining over four months, which compounds to roughly 11% a year. Median growth was 0% for 255 B2B businesses versus minus 6.2% for 257 B2C ones. He also found momentum sticks, with 54% of June-to-July growers continuing to grow against 35% of decliners.
Skim these
Paul Graham: a Series A is not a milestone
Paul Graham says funding rounds are not milestones and the goal should be not needing to raise one.
Frequently asked questions
How much revenue did Marc Lou make in October?
Marc Lou reported $105,147 in October revenue across 16 different revenue streams with 90% profit margins and no employees.
How did Anthropic rewrite its Messages API without Rust developers?
Anthropic used Claude to write the code while human team members created the plan and verified the new version against the old one using real traffic, resulting in a 40 to 50% drop in CPU usage.
What did levelsio use to edit his vlog?
levelsio used Claude Code with Opus 5.5 to edit video clips into a 10 minute vlog by giving it a single sentence request, making only a few adjustments after.
Are startups with over $1,000 MRR growing?
According to Marc Lou's analysis of 758 startups, revenue is slightly declining over four months, with B2B businesses showing 0% median growth and B2C businesses declining by 6.2% median.
Should founders focus on raising a Series A?
Paul Graham says funding rounds are not milestones and the goal should be not needing to raise one.