sam🍇

Building open source AI tools for entrepreneurs, and Agashic AI.

[sam🍇 @samrexford]

@vrexec where do I apply tho

[sam🍇 @samrexford]

fable nerf'd me over some basic UI stuff in a dashboard

[sam🍇 @samrexford]

i wonder if we'll look back at Fable being the true take off moment

[Taelin @VictorTaelin]

this is my personal singularity moment

this post may sound like a paid ad. I only wish. I'm concerned, more so than happy. the world is changing, and, among the scenarios where AI goes terribly wrong, inequality is the most realistic, yet, the one Anthropic seems to be the least concerned about. I'm glad OpenAI is taking the opposite stance: *personal AGI for everyone*. I think this is a commendable position in the times we live. but who am I in the queue of the bread?

anyway, Fable is here, so I'll just report my first-hour experience

first of all, all my pet prompts are solved.
→ λ-calculus puzzles
→ bug questions
→ one-shot apps
all are trivial to it.

I don't have anything harder other than my
ongoing work

so, in the last several days, I've been toying with HVM5, a new interaction net evaluator with a faster loop.

after writing the first version, I left 32 GPT-5 agents working for ~20 hours each. this resulted in up to 2x speedups, but the file size increased by 2-fold and quality decreased significantly.

I then simplified the whole thing into an even simpler core, and left Opus 4.8 and GPT 5.5 optimizing it for 8 hours. Opus got a legit 6% - 34% speedup in most benches. GPT got better results, but, sadly, an unusable file.

I then asked Fable to optimize it.

2 hours later, it landed a 1770% speedup in one case, 100%+ in other 4, and 22% in average. yes, in 2 hours it outperformed me, opus 4.8 and a swarm of gpt 5.5 agents, by one order of magnitude.

that could not possibly be legit. "it must be hardcoding the benchmarks" (GPT trauma). so I read its explanation and what it did was, indeed, the most high impact optimization one could try first. seems like HVM5 was wasting a lot of time garbage-collecting unused branches of pattern-match nodes. I had optimized that for static mats, but not for dynamic mats. skill issue. Fable figured how to do it for these, resulting in a massive speedup in some benches

but wait, is that *correct*? I'm not sure yet, it is credible, but this is the kind of thing that is very easy to get wrong on interaction nets. the problem is, when I was ready to start auditing Fable's solution so I could tell whether it was buggy or legit, it interrupted me to tell me it had found a massive bug on the code *I* had written.

... wait, what?

so... for garbage collection purposes, I stored a bit on lambda term pointers that meant "the variable bound by this lambda has been freed, so, its lambda must free whatever argument it is applied to". that's fine. yet, on duplicator nodes, I also used the same bit to mean "one of the duplicated variables was freed, so, treat this dup as a passthrough no-op". so, if a lambda entered a duplicator, it would mistake the lambda's collection bit for its own, resulting in corrupted interaction!

that's a mouthful, why I'm writing this?

just so you can appreciate the sheer absurdity of what just happened. I didn't ask it to find bugs. I asked it for an optimization. and even if I did ask it to find bugs, this bug is so astonishingly subtle and specific, identifying it takes mastering the domain to an extent that it beyond even me. I'd easily need hours or days to fix it, *if* I ever came across it. chances are it would just go unnoticed. and Fable found it and fixed it like it was nothing, while it was busy adding a 17x speedup to a file that neither I, nor Opus 4.8, nor a fleet of GPT 5.5 managed to barely make 2x faster.

oh and there is also another tab where it is also ripping through Bend's codebase and finishing everything I had to do

I don't know what to say anymore

this isn't about Anthropic or OpenAI, this is about our collective future as a species. the world is changing, and we need to be aware of it, and discuss how to handle this change.

receipt below . . .

[sam🍇 @samrexford]

Breath of the Mythos

[Matt Shumer @mattshumer_]

Fable has solved 3D worldbuilding... utterly insane. This is all completely custom-built ThreeJs, running in the browser.

[sam🍇 @samrexford]

@dangreenheck this is slop? a year ago ppl would have lost their minds over this

[sam🍇 @samrexford]

@naw103 good call thx dude

[sam🍇 @samrexford]

my boy is just cookin past his context window

[sam🍇 @samrexford]

trust me bro source was correct

[sam🍇 @samrexford]

Anthropic releasing Mythos sibling "Fable" tomorrow, per our source (trust-me-bro)

[sam🍇 @samrexford]

oh shit

[Claude @claudeai]

Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.

Its capabilities exceed those of any model we’ve ever made generally available.

[sam🍇 @samrexford]

@itsyukinariyo

[sam🍇 @samrexford]

My claude code funnel builder plugin got 60 stars on github

Chat, have i made it yet?

https://t.co/GvSzM9IaWs

[sam🍇 @samrexford]

Anthropic releasing Mythos sibling "Fable" tomorrow, per our source (trust-me-bro)

[sam🍇 @samrexford]

VibeHackers are cloning CEOs' voices from public podcasts and videos to trick finance teams into executing fraudulent wire transfers (Over 53% of org's targeted according to the article.. that's ... a lot).

https://t.co/Fg1QzrzLXj

[sam🍇 @samrexford]

cd "happy life" && while true; do bash "happy wife"; sleep 1; done

[Armin Ronacher ⇌ @mitsuhiko]

@aarondfrancis Wake up. Bring kids to school/daycare. Work. Put kids to bed. Love your wife. Loop

[sam🍇 @samrexford]

we can delete meta from this

'ango' doesn't sound as good unfortunately

[Kr$na @krishdotdev]

It's not FAANG anymore.

It's MANGO.

[sam🍇 @samrexford]

@xkaidus am i ngmi?

[sam🍇 @samrexford]

@swogx just a tiny OSS minnow in a sea of whales <3

(someone already forked it and reused it w/out any attribution too! hell fuck'n yeah!!)

[sam🍇 @samrexford]

@ashergmi hahah thank you

Wen openAI acquisition offer?? wen

[sam🍇 @samrexford]

imma use em dashes whenever tf i please tyvm—i kinda like them, so does chat

[sam🍇 @samrexford]

@theCTO I can build a custom version of this for you reach out if you want to discuss