If they are indeed approaching IPO, that would be reason enough to not share incorrect numbers.
@lennysan
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Anthropic Reaches $30B ARR in Explosive Monthly Growth
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Breaking: Anthropic is now at $30B ARR. Up from $19B in February. That's $11B ARR added in one month. WAT.
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Anthropic Head of Growth: AI Requires More PMs, Not Fewer
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Narrative violation: Anthropic's Head of Growth says we'll need more PMs, not fewer.
— Lenny Rachitsky (@lennysan) 6 avril 2026
"While PMs and designers are getting leverage from AI, engineering is getting the most leverage right now. If you think about a default team with 5 engineers, 1 designer, 1 PM—with Claude Code,… https://t.co/dnF0CeuudT pic.twitter.com/LisCpN30SHNarrative violation: Anthropic's Head of Growth says we'll need more PMs, not fewer. "While PMs and designers are getting leverage from AI, engineering is getting the most leverage right now. If you think about a default team with 5 engineers, 1 designer, 1 PM—with Claude Code,
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Dark Factory Pattern: The Next Leap in AI Software Engineering
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I asked @simonw what the next leap in AI software engineering is likely to be.
— Lenny Rachitsky (@lennysan) 3 avril 2026
He explained the "dark factory" pattern where teams don't write any code or even look at their code. https://t.co/LWQPeaxml9 pic.twitter.com/2SmKC8bH4iI asked @simonw what the next leap in AI software engineering is likely to be. He explained the "dark factory" pattern where teams don't write any code or even look at their code.
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AI Coding Agents Reach Inflection Point in November 2025
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My biggest takeaways from @simonw
: 1. November 2025 was an inflection point for AI coding. GPT 5.1 and Claude Opus 4.5 crossed a threshold where coding agents went from “mostly works” to “almost always does what you want it to do.” Software engineers who tinkered over the -
Cognitive limits of using multiple AI coding agents
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"Using coding agents well is taking every inch of my 25 years of experience as a software engineer, and it is mentally exhausting.
— Lenny Rachitsky (@lennysan) 2 avril 2026
I can fire up four agents in parallel and have them work on four different problems, and by 11am I am wiped out for the day.
There is a limit on… https://t.co/LWQPeaxml9 pic.twitter.com/lPcKm9Lqoy"Using coding agents well is taking every inch of my 25 years of experience as a software engineer, and it is mentally exhausting. I can fire up four agents in parallel and have them work on four different problems, and by 11am I am wiped out for the day. There is a limit on
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Season Sponsors: WorkOS and Trustvanta Partnership Announcement
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Thank you to our season's sponsors: @WorkOS — Modern identity platform for B2B SaaS, free up to 1 million MAUs: https://
workos.com/lenny @TrustVanta — automate compliance, manage risk, and accelerate trust with AI: https://
vanta.com/lenny Also available on:
• Spotify: -
Coding Agents Demand Deep Software Engineering Experience
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"Using coding agents well is taking every inch of my 25 years of experience as a software engineer." Simon Willison (
@simonw
) is one of the most prolific independent software engineers and most trusted voices on how AI is changing the craft of building software. He co-created -
Setting Up OpenClaw: Hardware and Security Best Practices
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My top takeaways from @clairevo on all things 1. Install OpenClaw on a separate computer, not your main machine. Use an old laptop or buy a Mac Mini ($500-$600). Create a dedicated Gmail account and local admin account for your agent. Think of it like hiring an employee—you
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OpenClaw AI Agent Handles PLG Sales Automation
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One of my favorite usecases: @OpenClaw handling your PLG sales