CTO: We lost our strongest backend engineer today.
Founder: The one handling infra and outages?
CTO: Yes.
Founder: Did a bigger company hire him?
CTO: No.
Founder: Then why quit?
CTO: He said he was exhausted.
Founder: From the workload?
CTO: Not exactly. From watching the same database bottleneck, same queue lag, same deployment mistakes come back every month.
Founder: That happens in fast moving teams.
CTO: He agreed. What he could not accept was that every fix was temporary because nobody wanted to slow down and clean the system properly.
Founder: We had deadlines.
CTO: He had standards.
Founder: So he left because the work was hard?
CTO: No. He left because he was not doing engineering anymore. He was just containing damage.
The best engineers do not hate hard problems.
They hate preventable problems that management keeps normalizing.
Dirty industry secret: nobody really knows the best way to use AI for software development 📢
- 24 months ago, we copy-pasted from ChatGPT
- 18 months ago, we jumped between ask mode and agent mode
- 12 months ago, we told AI "you are a senior developer"
- 9 months ago, we built MCPs
- 6 months ago, we switched to plan mode
- today, we're obsessed with skills
All of this (and much more) are just early experiments and temporary hacks in a very young and quickly evolving field.
So when someone says their workflow is the optimal one, they're confused at best.
Stay curious, stay open, stay in control and stick to the fundamentals, and you'll come on top in this amazing tech revolution. Enjoy the ride!
🚨 MICROSOFT ABOUT TO SUE OPENAI & AMAZON
>be microsoft
>invest $1B in openai
>gets exclusive azure cloud deal
>invest another $10B+
>gets rights to 49% of profits +IP
>Azure goes brrrrrr
>Altman lies to board, quietly launches ChatGPT
>board fires him for being a lying manipulative snake
>Satya goes to war for Altman. saves his entire career
>Altman retvrns in 5 days
>immediately purges everyone who purged him
>full control. no oversight. thanks Satya!
>fast forward to 2025
>OpenAI restructures from non-profit to PBC
>MSFT $13.8B is now worth $135B. 10x return
>plus 27% of OpenAI
>but gives up cloud exclusivity + profit share
>KEEPS API clause
>all API calls contractually MUST route through Azure
>Satya thinks life is good lol
>5 months later
>Sam Altman becomes strong enough to betray you
>"raises $110B round"
>doesn't need satya daddy's money anymore
>announces $50B deal with AMAZON
>$138B in AWS cloud commitments
>amazon and openai claim they built some cope called a "Stateful Runtime Environment"
>Microsoft lawyers hmmm
>Altman: it's not what it looks like. i can totally explain
>so it's technically not an API call because it's "stateful"
>and it's a... "Runtime Experience"
>totally di!erent thing
>pls ignore the TCP packets lol
>Microsoft engineers look at the SRE architecture
>"THIS IS NOT TECHNICALLY POSSIBLE without violating the contract."
*Satya finds out he's been cucked*
Microsoft exec literally tells FT: "We know our contract. We will sue them if they breach it."
>AWS quietly gives employees a memo on which words are legally safe lmao
>can say: "powered by" or "enabled by" or "integrates with" OpenAI
>cannot say: "enables access to" or "calls on" ChatGPT
>also cannot suggest frontier models are "available on AWS"
Microsoft: "If Amazon and OpenAI want to take a bet on the creativity of their contractual lawyers, I would back us, not them."
Scam Altman strikes AGAIN.
My CTO friend texted me: "Your gstack is crazy. This is like god mode. Your eng review discovered a subtle cross site scripting attack that I don't even think my team is aware of. I will make a bet that over 90% of new repos from today forward will use gstack."
#تحدي_مرسال
كل سنة و انتم طيبين، ان شاء الله زي كل سنة مشاركين في تحدي مرسال.
كل لايك وشير في خلال ٢٤ ساعة ان شاء الله حيبقى قصادها تبرع بدولار لم��سسة مرسال @Mersalcharity
تقبل الله منا و منكم صالح الأعمال
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Here are my Opus 4.5 thoughts after ~2 weeks of use.
First some general thoughts, then some practical stuff.
--- THE BIG PICTURE ---
THE UNLOCK FOR AGENTS
It's clear to anyone who's used Opus 4.5 that AI progress isn't slowing down.
I'm surprised more people aren't treating this as a major moment. I suspect getting released right before Thanksgiving combined with everyone at NeurIPS this week has delayed discourse on it by 2 weeks. But this is the best model for both code and for agents, and it's not close.
The analogy has been made that this is another 3.5 Sonnet moment, and I agree. But what does that mean?
Every few generations we get a major model unlock - a moment that unlocks a new way of working. GPT-4 was the unlock for chat, Sonnet 3.5 was the unlock for code, and now Opus 4.5 is the unlock for agents. Thanks to Opus 4.5, agents can now work reliably on increasingly longer time horizons and get real-world work done on your behalf.
Opus 4.5 is like a Waymo. You tell it "take me from A to B", and it takes you there. After a few of these experiences your brain realizes "oh. ok. we live in this world now". And then you're hooked.
From that moment on, you'll never work the same way again.
THE YEAR OF AGENTS
2025 has been touted as the year of agents, and Opus 4.5 + Claude Agent SDK is the pairing that makes that phrase true.
The Claude Agent SDK is the best open secret in AI right now. An agent's harness matters almost as much as its model. If you have a bad harness, then you may as well have a bad model. With the SDK you get a world-class agentic harness out-of-the-box which you can now pair with Opus 4.5 to build real-world agents that actually work.
I'm reminded of Alan Kay's quote "People who are really serious about software should make their own hardware". The agent version of this is "people who are serious about models should make their own harness". Anthropic clearly believes this, and it's working. The pairing of these tools is magic.
I would describe myself as being "unhobblings-pilled", and the Claude Agent SDK + Opus 4.5 is the next major unhobbling. There's now another OOM of new latent economic value stuck in this combo, and it's the job of builders to get it out.
If you were bearish on agents, now is the time to turn bullish.
"ALL OF THIS IS REAL"
"You know what's crazy? That all of this is real". This was Ilya's opening line about the state of AI in his Dwarkesh interview, and I echo that sentiment. I can't believe that Opus 4.5 is real.
There have been several times as Opus 4.5's been working where I've quite literally leaned back in my chair and given an audible laugh over how wild it is that we live in a world where it exists and where agents are this good.
Nat Friedman has this great question on his website: "Where do you get your dopamine?"
Increasingly, I get mine from Claude.
LONG ANTHROPIC
I saw a post yesterday where someone said that Opus 4.5 was the most important thing to happen to them in their professional career. This will be true for more people going forward.
Every year for the past 3 years, Anthropic has grown revenue by 10x. $1M to $100M in 2023, $100M to $1B in 2024, and $1B to $10B in 2025. In Dario's recent DealBook interview he expressed that he wasn't sure if that 10x pattern would hold for 2026.
While he's probably right, I do expect Anthropic's revenue at the end of next year to be much higher than everyone expects. It wouldn't surprise me if they passed OpenAI in valuation by early 2027.
Opus 4.5 is too good of a model, Claude Agent SDK is too good of a harness, and their focus on the enterprise is too obviously correct.
Claude Opus 4.5 is a winner.
And Anthropic will keep winning.