Alex Renzin

Software engineer @OpenAI. Political junkie. Dog lover. Amateur investor. Proud immigrant.

[Alex Renzin @lithdash]

@SawyerMerritt They added the steering wheel?

[Alex Renzin @lithdash]

@DJSnM @Robotbeat How that does that show that fp64 is the right benchmark for supercomputers in 2026?

[Alex Renzin @lithdash]

@Robotbeat Any GPU training cluster is a supercomputer though, and 30MW not exactly large by today’s standards.

[Alex Renzin @lithdash]

@Robotbeat You need a benchmark, but you should update your benchmark as the shape and purpose of the sustems you’re measuring and comparing changes

[Alex Renzin @lithdash]

@Robotbeat And that may be a type of a supercomputer, but not the definition of one

[Alex Renzin @lithdash]

@Robotbeat ok but but fp64 perf is a pretty arbitrary and no longer relevant definition of a supercomputer

[Alex Renzin @lithdash]

@lithdash It's a legitimate list of top supercomputers. It tests a certain kind of computational capability that is relevant for scientific simulations (nuclear bombs, etc).

[Alex Renzin @lithdash]

@Robotbeat I mean the list of top supercomputers

[Alex Renzin @lithdash]

@talbroda @khoslaventures @vkhosla @SStrohband @SamirKaul1 @rabois Congrats Tal!

[Alex Renzin @lithdash]

@tszzl regulatory capture by Big Cell

[Alex Renzin @lithdash]

@DeryaTR_ Except aviation became safer mostly due to systemically investing failures, institutionalizing the fixes, and implementing appropriate regulations. Pretty much what “pacing” is advocating.

[Alex Renzin @lithdash]

@TaylorLorenz A lot of (if not most) people at OpenAI

[Alex Renzin @lithdash]

@tszzl I’m allowed to own an semi-auto rifle but not a machine gun

[Alex Renzin @lithdash]

@deanwball They’re “optimists” in the same way someone closing his eyes while stepping on the gas is an optimist

[Alex Renzin @lithdash]

@Rebel44CZ Completely incorrect

[Alex Renzin @lithdash]

It’s hard to overstate how dumb these guys are

[@jason @Jason]

All the regulations being floated by frontier model companies must be viewed through the lens of them losing tokens to Open-Source models.

The timing of these regulations seems to line up perfectly with Open Source closing the gap significantly (but not completely) — and @nvidia going all in on open source in the last 60 days.

If we’re gonna regulate, why don’t we require that last year’s frontier models and weights be open-sourced?

[Alex Renzin @lithdash]

@RichardHanania Expect a year+ gap between capabilities and economy-wide deployment

[Alex Renzin @lithdash]

@Miles_Brundage ah yes, a great example of a situation well handled

[Alex Renzin @lithdash]

@AndrewPerpetua Ok let me rephrase - what are things that your version of AI can do which current models commonly known as AI can’t?

[Alex Renzin @lithdash]

@AndrewPerpetua You’re literally inventing your own definition of AI that no one else subscribes to and then calling others in the field lost. Maybe consider you’re out of your depth on this one.

[Alex Renzin @lithdash]

@AndrewPerpetua So there is no practical difference then?