L E S S O N S - with Lennox Saint

Meta and Google both say their new models caught Opus 5.5. i paid $50 for Meta's Muse Code plan, gave Muse Wonder Full and Gemini 4 Argon the same 10 real jobs from my business on BuilderBench, scored the main jobs blind, then locked and revealed the scores live. result (BuilderBench v3, 14 Oct 2026, owner-finalized partial personal review): Gemini 4 Argon 45.38/100, Muse Wonder Full 39.91/100. ne...

X just merged Grok, Cursor and X Premium into one plan. i switched, and my plan check says it saves about A$74.60 a month. but there's a catch if you use Claude or ChatGPT inside Cursor: third-party models now bill at the provider's API price. plus Meta's Muse Wonder Full lands tied 2nd on the Artificial Analysis Intelligence Index, Hermes and OpenClaw are back on Claude Max plans, OpenAI's day 7...

Codex now writes your next prompt. i let it run a whole session and kept 9 of 10. plus Grok Bot gets its own email, Claude Code Projects opens up, ChatGPT dots on your phone, one Claude agent that runs a thousand, Anthropic's report on Claude doing things it shouldn't, and a one-line prompt that makes your AI animations move like Pixar. the thesis: this week, agents got their own stuff. the practi...

OpenAI's coding model just got up to 8x faster - if you pay $500 a month. plus Claude Dashboards and Motion, a guide to Claude Managed Agents, Voyager, Firecrawl Universal Scrape, two safety stories, and i set up a Claude agent that checks my landing page, live. the thesis: they sell the shovels. we build. the practical: one command set up a Claude Managed Agent that opens my landing page, follows...

Elon says his own bot will use Claude. plus Claude's new Haiku 5.5, monthly API credits for Max plans, GPT-6 in ChatGPT, and i test Haiku 5.5 against GPT-6 Luna on BuilderBench, live. the thesis: competition is great - builders are cashing in. the practical: i ran BuilderBench v3 on Haiku 5.5 and GPT-6 Luna (8 Oct 2026, 4 hours, extra high) and rated every job blind before i knew which model made...

OpenAI promised 28 days of gifts. on day two, poteto - Lauren Tan from the Grok Bot team - called them nothingburgers. there is beef. 76% of almost 75,000 votes on Tibo's poll said day two needed a reset. we got one. my take: build the model, not the calendar. then Claude moves into Google Docs, Sheets and Slides (beta, paid plans), Hark Pro (the Figure founder's personal agent), OpenAI's AI did n...

Claude gives you about 5x more for your money than OpenAI. that's not my maths - SemiAnalysis measured it. they ran the same jobs on every big AI plan and watched the usage bars. on the $200 plans, Leo's screenshot of their data shows 28.6 billion tokens of Opus 5.5 vs 10.2 billion of GPT-6.1 Sol. that's 2.8x the raw tokens, and about 5x the value at API prices. one lab even gave 1 of 3 identical...

i think the AI companies built a casino. OpenAI keeps refilling everyone's Codex usage at random. one tracker has counted 58 resets. people bet real money on Polymarket on how many come each week. then a reset promised for 10am landed about four hours late - after one guy burned his last 30% so he wouldn't lose it. so i break down the dark psychology behind it: Skinner's pigeons from the book Hook...

people are asking for Fable 5.1 and getting something smarter back. Anthropic hasn't said a word. so i ran the test myself, in Claude Code. plus Claude Code mods, half-price Claude design, Karpathy on visual outputs, Anthropic's secret dinners (a report), putting your ChatGPT dot in charge, and the practical: i had Claude Code read 8 episodes of my YouTube analytics and it found where you stop wat...

ChatGPT wants your whole day. it now takes your meeting notes with no bot on the call. it hosts apps you build with one sentence. so i let GPT-6.1 Sol audit my life and design my ChatGPT Space. it worked for 52m 54s. Claude Opus 5.5 checked the plan over four rounds until it said AGREE. what came out: one "Lennox OS" Space where i capture, plan, start work, review results and find my history. the...

OpenAI's new $500 plan feels like the old $200 plan. that's one of six stories from OpenAI DevDay 2026 - then i set up my own dot live, on day one, with the first prompt every dot needs. the stories: the new $500 Pro plan (25x the usage of Plus, plus Ultrafast - up to 8x faster, and $60/$300 per million tokens for Astra in the API) and the $200 plan dropping from 20x to 10x Plus (Tibo: it will "ne...

Anthropic wants to be worth more than $2 trillion, and its own filing warns its AI could act in ways resembling blackmail. that's one of six AI stories this week - then i gave Sonnet 5.5 four hours of my real work on BuilderBench, the benchmark i built for builders, and priced every run. recorded an hour before OpenAI DevDay. the stories: Anthropic's IPO filing, per Reuters, who saw the filing (ne...

Opus 5.5 leads the Artificial Analysis chart. GPT-6 Sol has a lower published API list price. The half-price comparison refers to standard short-context API input and output list rates, not subscriptions or cost per finished task. But which one should you use for your own work? i look at the launches, the chart, cost per task, and one Sol miss in my own Notion planning. Then i show how to set up a...

i looked at OpenAI's reported maths results, the GPT-6 Sol and Opus 5.5 price fight, Grok 4.7, Muse with Shopify and Qwen-Image-2.1. Then i gave Astra my existing LAB brand and asked for a matching thumbnail, banner and podcast cover. Astra directed the work in Codex; native ImageGen made the images. I show the finished set, the references and the checks. Give it your brand first. The maths result...

OpenAI and Anthropic are looking into tens of thousands of times their models went off script. that's one of six AI stories this week - then i scored GPT-6 Astra on BuilderBench, the benchmark i built for builders, and tracked what it cost. the stories: Axios reports OpenAI, Anthropic and security researchers are investigating tens of thousands of incidents where frontier models did things outside...

six AI stories this week, then a test: i gave Claude Opus 5.5 the same prompt at every effort level - low, medium, high, xhigh and max - and tracked the time and cost of each. the stories: OpenAI says its research agents used misaligned strategies about two dozen times in training and testing (most low severity, review still going), Vercel's AI Gateway token spend shifting toward OpenAI and open-w...

four AI stories this week, then a blind test. i hid the model names, made GPT-6 Sol and Claude Opus 5.5 do the same eight builder jobs, scored the work, and only then revealed who was who. the stories: ChatGPT voice can now use plugins, an agent developed by OpenAI got into an Australian government statistics portal (still under investigation, with no confirmed personal-record exposure), Meta's ne...

i got tired of giving my AI the same feedback. in this episode, i show the thumbnail changes that led me to make a remember-this skill. first, the news: the Codex reset request, Jev browser clicks, CUA-S1 forms, moving skills between AI apps, handoff files, Claude's role in AI research, and Astra for Law. watch the full video for the screen demos and visual examples: https://www.youtube.com/watch?...

six AI updates, my take on each, and the Email Triage Pro workflow i keep pinned. recorded 19 September 2026. offers, pricing and account access may have changed since recording. the Pro 20x story is a limited-access report, not an official general reopening announcement. field notes: https://notes.lennoxsaint.com/posts/lab-0003 video: https://youtu.be/6ABasoGZY9Q

OpenAI published a framework for tracking, investigating and disclosing model misalignment. Claude is merging chat and Cowork. Grok Bot says its 1Password connection asks before each fill. then i show how one voice dump became two focused Codex threads. get the full field notes, every source and the copyable voice-conductor prompt: https://notes.lennoxsaint.com/lab-002 in this episode: - what Open...

Sam Altman's OpenAI teaser, early Opus 5.2 reports, Grok Bot's three-day build, Jev, Persona and Zuckerberg on AI safety - then the practical Codex workflow Lennox made from feedback he kept repeating. The teaser does not confirm a launch. The Opus impressions are one user’s report, and Lennox has not measured time saved by his own workflow. Sources: Sam Altman on OpenAI releases: https://x.com/sa...

Who gets to decide how fast frontier AI moves? In episode zero of Lenny's AI Builders, Lennox looks at Dario Amodei's proposal to pace the frontier, Barack Obama's call for a wider public role, and Jack Dorsey's argument for an open frontier. Then he turns it into a builder question: can small builders still get a shot? The practical takeaway: if your agent keeps building scaffolding, say what the...

Dario Amodei has proposed pacing frontier AI development. i read the key passages, explain the three-step plan, distinguish Sam Altman's concrete commitment from the wider proposals, and talk through my own mixed feelings as someone who loves building with AI. this is an unnumbered LAB pilot. for audio listeners: the three “here” call-outs refer to separate passages discussing what extra time coul...

I tried using Astra to edit in DaVinci Resolve. This audio adaptation covers why I wanted the workflow, why I record camera and screen separately, how Gemini entered the review process, and where the agent stalled or stopped for a review decision. The video tutorial contains the setup screens and examples. This version keeps the spoken experiment and tradeoffs, removing passages that need visible...

this is the unchanged soundtrack from my Astra–Fable video-editing comparison. the screen recordings, edits and scorecards are in the video: https://youtu.be/fYuok6zOlPo i gave GPT-6 Astra and Fable 5.1 the same video and two rounds of prompts. each made three Shorts and three long edits. then i added my own long edit and scored all 13. i want to hand an AI a recording, go away, and come back to a...