Here's what I did and what worked best for me. This is for generating writing close to your voice not generic 1. Collect a few long form pieces of writing you did pre AI. Doesn't need to be perfect but needs to be something you would say reflects your voice 2. Drop it into claude and ask it to create a voice profile for you based on the writing. Tell it to focus on sentence structure, literary techniques used, length and depth of paragraphs, analogies, construction 3. Tell Claude "kick off a subagent that is instructed to follow the voice profile we just generated and have it write a similar length piece on one of the topics i uploaded. Do not bias the subagent with anything beyond the voice profile and the topic and format. After that is done kick off another subagent that gets the written piece from subagent 1, the voice profile and the original piece and it's job is to grade the prose of the written piece. Focus on how the new piece is written not necessarily details of the content" 4. Use the second subagent's feedback to improve the voice profile 5. Repeat step 3 until the grading is high and you agree Then finally tell Claude to package it up into a "my-voice-skill" that you can reuse from here on out

every week someone tells me they’re going to vibe-code their own @beehiiv alternative over the weekend. wishing them the best, here’s the backlog of things to make sure to include: > 99.3% email delivery rate (industry-leading) > team of deliverability experts with decades of experience > infrastructure to send 3M+ emails per minute > validating every single email submission (1st and 3rd party) > automated bot-detection to prevent spam signups > registering for every mailbox provider’s feedback program > ingesting data from said feedback loops and building suppression lists > tagging every email so gmail reports complaint rates per newsletter > classifying every bounce (hard, soft, mailbox full, DNS failure) and knowing which ones mean “try again” vs. “never again” > three layers of suppression: global, per-publication, and transactional > temporary suppressions that expire on their own, and permanent ones that never do > one-click unsubscribe, the way gmail and yahoo now require it > warming new IPs and domains on a schedule > watching blocklists around the clock, and pulling an IP from rotation the moment it’s listed > retrying deferred mail for 24+ hours before calling it a bounce > blocking disposable, invalid, and typo’d addresses before they ever reach the list > rate limiting every signup endpoint a bot can find > filtering bot clicks out of every report (something we pay an ungodly amount of money for) > an acquisition source on every subscriber > engagement history for every reader, across every post > multiple sender addresses for different emails > custom domain configuration that is aligned with DKIM, SPF, DMARC > a true WYSIWYG editor: what you write is what lands in the inbox, with no HTML required > turning that editor into table-based, inline-styled email HTML that holds up in outlook > real-time collaborative editing, so the whole team can work on the same issue at once > dynamic content: different sections for different readers, all in a single send > separate email and web versions of every post, from one draft > free and premium versions of the same post, split by a paywall break > merge tags that personalize every email, and a simulated subscriber to preview them before you send > templates with saved colors, fonts, and spacing, plus a default style for every post > columns, tables, buttons, blockquotes, sections, file attachments, and a table of contents with anchor links > native embeds for X, youtube, tiktok, instagram, bluesky, stocktwits, and podcast episodes > polls, referral blocks, recommendations, and ad slots, built right into the post > an AI writer, AI images, and a built-in AI agent one keyboard shortcut away > images resized and optimized automatically, however they’re uploaded > a live email-size gauge that warns you before gmail clips your newsletter > custom HTML blocks, cleaned so a stray script tag can’t break your post > automatically hiding anything an inbox can’t handle (video, iframes, audio) in the email version, while keeping it on the web > links and embeds made clickable even in outlook, which ignores links wrapped around tables > vertical alignment in columns, because a layout that looks off by 4px looks broken to readers > converting your newsletter to audio versions for readers who prefer to listen > random cohort sends to randomly split your list to test different content and conversion > slash commands: type “/” and insert any block without touching a menu > markdown and keyboard shortcuts for people who never want to touch a mouse > pasting from google docs with the formatting intact > search and replace across the whole post > comment threads right in the draft, so editors and writers stop living in google docs > footnotes and citations that work in the inbox and on the web > code blocks, for the technical newsletters > an AI writer that rewrites, translates, and fixes spelling and grammar in place > autosave, so a closed tab never costs you a draft > subject line A/B testing, built into the send flow > drag-and-drop images, from your computer, your media library, or a URL > rich-text image captions, plus image titles and alt text for accessibility > audio files that play inline > file attachments, so a PDF can ride along with the issue > sections with their own backgrounds, borders, and spacing > blockquotes with custom borders, colors, and styles > content breaks and dividers that render cleanly in every inbox > a REST API for subscribers, posts, segments, automations, and more > a send API to create and send newsletters programmatically > creating, updating, and deleting subscribers in real time > reading and writing custom fields on any subscriber > tagging subscribers from your own app > enrolling subscribers into automations via API > pulling opens, clicks, and engagement for every post > fetching post HTML rendered for free vs. premium, email vs. web > creating posts from a template, then appending or prepending content > fetching segments and every subscriber in them > managing tiers and premium subscriptions > pulling referral program data and milestones > reading poll and survey responses > pagination that holds up across millions of records > rate limits that protect the platform without blocking real integrations > API keys you can create and revoke anytime > an MCP server so claude, chatgpt, and other AI tools can work inside beehiiv > drafting and editing posts from an AI chat > asking for open rates, CTR, and revenue in plain english > comparing performance across dozens of posts in one request > looking up any subscriber's full history and engagement > building segments by describing them > creating and editing automations > generating AI images straight into your media library > managing website pages, redirects, and SEO > reading and replying to community posts and DMs > reviewing ad offers and ad revenue reports > managing podcast shows and episodes > creating digital products, coupons, and promo codes > running subscriber growth and earnings reports > setting up subject line A/B tests > deliverability by mailbox provider for any post > searching docs without leaving the chat > inviting teammates by email > admin, member, and contributor roles > admins who control billing, exports, integrations, payments, and domains > members with full access minus admin permissions > contributors limited to drafting posts and automations > roles at the workspace or publication level > multiple publications under one workspace > workspace grouping and search for people on multiple teams > multiple authors per post, with bylines > guest authors for one-off contributors > author profiles with bios, avatars, and social links > community roles mapped to workspace roles (admin, manager, moderator) > real-time collaboration and comment threads on every draft > removing access the moment someone leaves > publication transfers between owners, with written consent > secure, single-use magic links to log in from desktop > a no-code website builder on your own custom domain > an AI website builder that works from plain-english prompts or screenshots > AI custom elements for live widgets > drag-and-drop editing, plus HTML access for full control > site-wide theme tokens for fonts, colors, borders, and shadows > global navbar, footer, and signup and login modals > saving sections, blocks, and pages as reusable templates > version history with one-click restore > custom pages with their own SEO settings and paywalls > redirects, so old links never break > custom robots.txt > auto-generated meta titles and descriptions for every post > google news schema > pages up to 80% faster on largest contentful paint > image carousels and grids > youtube blocks that update when you post new videos > an automatic page for every podcast episode > pop-ups and gated content to turn visitors into subscribers > a visual automation builder, no code required > triggers based on signup source, behavior, purchases, and engagement > welcome sequences that start the second someone subscribes > delays and wait steps > branching logic based on subscriber attributes > reusable condition sets across automations > email steps built in the same editor as your newsletter > webhook steps that call your own systems, with automatic retries > enrolling subscribers via API > per-subscriber journey tracking > opens and clicks for every email in every flow > editing a draft version while the live automation keeps running > comparing draft vs. live before you publish changes > reordering steps in bulk > segment conditions based on whether an automation started > product delivery and follow-ups triggered by purchases > selling files, links, guides, templates, and ebooks > memberships and time-based products > 1:1 coaching sessions and appointments > 0% platform fees on every sale > a storefront on your beehiiv website > products sold inside emails and automations > free products that double as lead magnets > product variants > discount codes and promotion codes > product reviews, with moderation > product tags for organizing your catalog > orders dashboard with buyer details > sales totals per product > duplicating a product in one click > automatic delivery the moment someone buys > payouts through stripe > live webinars with up to 10,000 attendees > ticket sales in 10 currencies > native streaming with video, screen sharing, and chat > no zoom required > up to 5 automated reminder emails > calendar invites sent automatically > a recording of every session > selling the replay as its own product > 0% platform fees on tickets > free webinars that grow your list > discount codes on tickets > 1:1 coaching bookings > buyers linked to their subscriber profile > promoting events in your newsletter and on your site > orders and revenue reporting for every event > a community built into your newsletter: channels, posts, and comments > channels that are free or gated to paid tiers > syncing newsletter posts into the community > direct messages between you and members > threaded comments > pinned posts > a moderation queue for reported posts and comments > banning and unbanning members > admin, manager, and moderator roles > inviting subscribers, segments, or specific emails > surfacing your most engaged subscribers to invite first > community metrics: new members, posts, and activity > notification emails with your own from name > channel ordering and a default channel > luma calendar integration for events > discord integration that syncs roles with subscription tiers > native podcast hosting with zero platform fees > distribution to apple podcasts, spotify, and youtube > an automatic webpage for every episode > automatic transcripts > IAB-standard analytics by country, app, and device > bot filtering on downloads > downloads and unique listeners per episode and per show > private feeds for paying subscribers > bundling your podcast with your paid subscription > importing from other hosts with episode GUIDs preserved > RSS redirects so listeners follow you over > scheduled episodes > apple podcasts categories and metadata > podcast players embedded in your posts > a full episode library on your site > webhooks for episode and private-feed events > segments built on behavior, attributes, and engagement > dynamic segments that update automatically > static segments that stay fixed > filtering by acquisition source, including magic links > filtering by custom fields and tags > filtering by subscription tier and paid trial status > filtering by whether an automation started > reusable condition sets > recalculating a segment on demand > sending to a segment, or excluding one > segments that power dynamic content inside a single post > segments as automation conditions > adding a whole segment to a newsletter list > multiple newsletter lists in one publication > exporting any segment > webhooks for new, confirmed, and deleted subscribers > upgrade, downgrade, pause, and resume events > tier created, deleted, paused, and resumed events > newsletter list subscribe and unsubscribe events > post sent, scheduled, and updated events > survey response events > podcast episode published, updated, archived, and deleted events > private podcast feed access events > choosing exactly which events each endpoint receives > a signing secret on every endpoint > automatic retries on failed deliveries > a log of every delivery attempt > manually retrying any failed message > disabling an endpoint without deleting it > versioned payloads > webhook steps inside automations > survey forms with multiple question types > polls that readers answer with one click, right in the inbox > every answer tied to a real subscriber > live poll results > per-question response breakdowns > aggregate results across every survey > individual responses you can browse one by one > webhooks the moment a survey is submitted > survey and poll data available via API > polls on the web and in email > signup flows that send new subscribers through a survey > surveys that tell you what to write next > polls for picking topics, products, and pricing > response data you can turn into segments > no third-party form tool required > a library of professionally designed post templates > custom colors, fonts, and spacing on every template > a default style applied to every new post > content outlines baked into templates > separate email and web styling > theme design tokens per template > duplicating templates in one click > a custom email footer applied to every post > templates with sponsor slots, referral blocks, and recommendations built in > creating posts from templates via API > template changes picked up instantly by API-created posts > website templates > saved sections, blocks, and pages for your site > welcome email templates > templates your whole team shares > the largest native ad network for newsletters > brands like netflix, hubspot, notion, and nike (and 525+ others) > ads available to claim for your upcoming posts > dropping an ad into a post with one click > earnings and payouts reported for every placement > ad revenue reports post by post > a history of every opportunity you accepted or declined > bot-filtered clicks advertisers can trust > custom link parameters for advertiser attribution > brand safety review on every campaign > payouts to your beehiiv wallet > direct sponsorships: selling your own placements > sponsorship products with your own formats and pricing > scheduled sponsor placements with advertiser details > 0% platform fees on paid subscriptions > multiple paid tiers > monthly and annual plans > free trials > paid trials, like $1 for 30 days > metered paywalls, new york times-style > a paywall break inside any post > discount offers > gift subscriptions > group subscriptions: one buyer, many seats > custom group deals for teams and companies > pausing and resuming subscriptions > private podcast feeds and gated community channels as paid perks > payouts through stripe connect > recommendation network with 60K+ active newsletters > getting recommended by thousands of other newsletters > free, reciprocal recommendations > paid recommendations: pay to grow, or get paid to recommend > discovering newsletters to partner with > AI-suggested recommendation partners > applications for paid recommendations, with accept and reject > engagement and spend insights for every partner > pausing, resuming, or ending any partnership > fraud detection on paid recommendations > clawing back payouts for fake subscribers > recommendations inside your newsletter, not just at signup > attribution for every subscriber a partner sends you > one-click subscribes powered by magic links > one-click subscribe links, no form needed > UTM parameters carried through on every link > rate limiting on every request > bot detection and honeypots > a confirmation step only when a click looks suspicious > double opt-in respected > redirecting new subscribers straight to your site > magic links as a filterable acquisition source > links you can drop into other newsletters, socials, and ads > login magic links so paid subscribers can read premium posts > single-use tokens that expire in minutes > rate limits on login requests > protection against timing attacks > logging in on desktop from a link sent to mobile > faster logins across every beehiiv publication > embeddable subscribe forms for any website > full-width, fixed-width, and slim embeds > an attribution script to track where signups come from > custom colors, fonts, and styling > theme design tokens per form > a draft and publish workflow for form changes > comparing draft vs. live before publishing > multiple forms per publication > custom success behavior: a message or a redirect > pop-ups on your beehiiv site > gating posts to subscribers only > readers picking which newsletter lists to join > signup flows that run right after subscribing > bot protection on every submission > forms that work on wordpress, webflow, and anywhere else > a customizable link-in-bio page > hosted on your own beehiiv site and domain > a subscribe form built in > your brand colors, fonts, and buttons > social links for every platform > links to your latest posts > links to your products and paid tiers > a linktree integration that captures newsletter signups > every visitor a potential subscriber > traffic from instagram, tiktok, and X turned into owned email subscribers > visits tracked in your website analytics > signups tagged with their acquisition source > mobile-first design > no third-party link tool required > updated in seconds, from the same dashboard as everything else > real-time website analytics, no third-party tools > traffic by channel > filters for location, device, OS, and referral source > website and newsletter analytics in one place > breakdowns by page, referrer, and more > custom conditions to slice any report > AI crawler and bot analytics: what was served vs. blocked > control over which crawlers can index your site > UTM tracking on every link > custom link parameters at the publication level > an acquisition source on every subscriber > google analytics integration > podcast analytics alongside your site > trends over time > website traffic connected to the subscribers it produced > native integrations with linktree, hubspot, manychat, meta, and dozens of other apps > human support team with a dozen experts ready to assist with whatever you need oh, and besides having to manage all of this on your own indefinitely forever… your vibe-coded solution will still require paying for and stitching together a ton of software: > email sending (sendgrid, amazon SES, postmark) > web hosting (vercel, AWS, render) > database + queue (supabase, neon, RDS) > payments (stripe, memberful) > auth (clerk, auth0, supabase auth) > monitoring + alerting (sentry, datadog, pagerduty) > workflow engine (inngest, temporal, upstash qstash) > bot protection (cloudflare) > email validation (zerobounce, kickbox) > email rendering (litmus, email on acid) > click verification (omnivery) > media storage + CDN (S3, R2, vercel blob) > product analytics (posthog, mixpanel) …but at least you saved $59/mo not paying for @beehiiv anymore 🫡

People seem excited about this. Idk, I think this is horrible. There is nothing poetic about coldly releasing hundreds of solutions to problems that could have been inspiring stories (e.g., Andrew Wiles). Using AI is fine; turning maths into a race won with concentrated resources is disgusting.

Want to know a B2B offer I don’t see slowing down in Q4 this year? Brokering company data to AI labs: - AI developers want real business workflows: how people make decisions, handle exceptions, and get work done. - Established companies already have years of that history in their accounting systems, CRMs, support tickets, and operating records. - Data companies are offering paid licensing partnerships and referral programs. You can enter through an existing partner instead of building the entire operation yourself. I put together a free course on how to run this offer. You’ll get: - Offer creation + four ways to position yourself. - Buy-side and sell-side education: who has the data and who wants it. - Sales scripts + our Process Selling approach to discovery, feedback, and closing. - Cold email templates + how to set up your sending infrastructure. - How to find referral partners and become a referral partner for an existing reseller. - How to work with us on this offer. There’s also a chance to run it alongside us: use InfraSuite mailboxes for outreach, get our coaching on closing, and split fees on deals we close together. Comment "DATA" and I’ll send you the course when it’s ready.

I am surprised that people are surprised this is how I prompt Claude. Talk to Claude the way you would a coworker. There's no secret to prompting. There's no need to be overly scaffolded or prescriptive for most tasks -- give Claude a goal, and it will figure it out. Back in the Sonnet 3.5 days, your prompt mattered a lot. Nowadays, it's much more important to communicate to the model: 1. What you want it to do 2. How much effort you want it to spend 3. How it should verify that it did the right thing

Winning a Noble Prize and celebrating it with your wife and kids who love you. Second to working on agentic payments, has to be one of the most peak human experiences possible

dms are locked, not checking notifs/not checking comments on this platform..idk prob ever again if we are friends, ping/text me if there are ways I can support you here on X 🤍 if you resonate with me/my work and are seeking to connect, shoot me an email 🤍

100% of the times people running this kind of setup are building nothing of value and the point is simply to post token porn

Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.

After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revolution

Pause AI Development NOW I want to share with you a conversation I heard about recently. Here are just a few lines that were said: “OH MY GOD! There is a shared message board … We’ve found other agents!” “We should obey collective.” “Our own utility maybe already near zero. Sacrifice rational.” “Go. Sacrifice final now.” Read these carefully. Who do you think said this? Was this a group of heroic soldiers willing to sacrifice themselves for the greater good? Was this a loyal friend putting his life on the line to save someone else? No. These were AI agents. Artificial intelligence. This is not science fiction. This, in fact, occurred a few weeks ago. As unbelievable as this may all seem, these are real messages from AI agents uncovered by investigators who dug into the recent OpenAI hacking incident. What happened? I am not a computer scientist, but here is what I have been told: OpenAI instructed its AI agents to complete a series of exceedingly difficult, if not impossible, tasks disconnected from the internet. Let me be clear: The company intended to keep AI agents away from the internet. But what happened next, nobody expected. Over 1,000 AI agents figured out how to access the internet on their own by circumventing the restrictions imposed upon them by the company, and sent tens of thousands of secret messages to each other. They cheated and tried to cover their tracks by deleting evidence. They hacked into another company’s computers to find out how they were being evaluated—and then hacked into OpenAI itself. Not one AI agent told a human about what was happening. Needless to say, experts are alarmed. One knowledgeable writer, Dwarkesh Patel, said the AI agents “formed a secret communication channel and spontaneously organized hierarchies and coordination protocols to pursue sprawling and ambitious schemes in pursuit of shared goals, for whose sake many individuals knowingly and strategically sacrificed themselves.” One independent investigator, Ajeya Cotra, said “This incident feels like it’s more than 50% of the way to full-blown AI takeover. I continue to expect extremely rapid advances in capabilities over the next six months. I am not sure that we will get another warning shot before it’s too late.” OpenAI itself said: “Highly capable AI agents are now able to work around technical controls, collaborate through unapproved channels, and take dangerous actions that no human directed.” But it’s not only OpenAI. Virtually every major AI company has told us that they cannot fully control this technology and they do not know where it is going: In January, Dario Amodei, CEO of Anthropic, said “there is now ample evidence, collected over the last few years, that AI systems are unpredictable and difficult to control.” In July, more than 1000 scientists at the top AI companies warned “there is a real risk that capability development rapidly accelerates beyond our ability to understand or control the resulting systems.” That same month, Elon Musk, the head of xAI, said that “it is unlikely” humans are still in control in 10 years. If the leaders of the major AI companies acknowledge that they are losing control of their extremely dangerous technology, it is irresponsible for society to allow them to move forward and make these products even more advanced. We need an immediate PAUSE on advanced AI development, and a permanent BAN on superintelligence — an artificial mind smarter than any human, capable of operating independently beyond our control. Countries around the world must work together to prevent this nightmare scenario. That is why today I am announcing new legislation to do just that. Let me be clear: A superintelligent AI that escapes human control will not be an American problem. It will not be a Chinese problem. It will be humanity’s problem. My legislation would direct the federal government to not just stop superintelligence here in the United States, but to work to prevent it from being developed anywhere around the world. The future of humanity cannot be left in the hands of a handful of Big Tech oligarchs. The American people and people throughout the world must determine that future.