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frank chu

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malloc did 1,000 allocations with 1 syscall

malloc did 1,000 allocations with 1 syscall

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4 min read

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10x faster k-means? I re-ran it and got 1.5x

10x faster k-means? I re-ran it and got 1.5x

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5 min read
$3.4B bought Anthropic 1.7 GW of gas turbines

$3.4B bought Anthropic 1.7 GW of gas turbines

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4 min read
NHTSA: most Waymo school-bus passes came after the fix

NHTSA: most Waymo school-bus passes came after the fix

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5 min read
12,000 engineers kept Claude Code. Bankers lost it

12,000 engineers kept Claude Code. Bankers lost it

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4 min read
8 hops from a license plate to an unlocked car door

8 hops from a license plate to an unlocked car door

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6 min read
Sequoia's $20B SpaceX stake met one board-seat wall

Sequoia's $20B SpaceX stake met one board-seat wall

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4 min read
1,600x is arithmetic, not an attack: I checked DeepMind RSA

1,600x is arithmetic, not an attack: I checked DeepMind RSA

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6 min read
56.6 GiB holds a 284B model: I audited the 64GB CPU claim

56.6 GiB holds a 284B model: I audited the 64GB CPU claim

Comments 1
5 min read
Nvidia cleared its CEO before the probe even started

Nvidia cleared its CEO before the probe even started

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5 min read
0 fixes for 61,747 stars: AutoGen after AI Frontiers died

0 fixes for 61,747 stars: AutoGen after AI Frontiers died

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4 min read
181 classes, 278 predicates: I counted Apple's family graph

181 classes, 278 predicates: I counted Apple's family graph

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4 min read
Data centers lost 40 of 41 votes — America PAC won 3 of 44

Data centers lost 40 of 41 votes — America PAC won 3 of 44

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5 min read
Binance bled $3.6B in hours, then its CFO left

Binance bled $3.6B in hours, then its CFO left

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3 min read
23-point split: 6 models tied at 74% fell apart on 17 lines

23-point split: 6 models tied at 74% fell apart on 17 lines

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5 min read
4 secrets in 12 beat both scanners — I planted them

4 secrets in 12 beat both scanners — I planted them

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6 min read
413 files, 1 badge: I re-ran Anthropic's memory test

413 files, 1 badge: I re-ran Anthropic's memory test

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6 min read
41 of 81 Firefox flaws: I checked OpenAI's count

41 of 81 Firefox flaws: I checked OpenAI's count

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7 min read
11 of 25 sudo checks differ: I ran Ubuntu's Rust sudo

11 of 25 sudo checks differ: I ran Ubuntu's Rust sudo

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6 min read
9.3 to root in 5 hops: I audited the Firecracker escape

9.3 to root in 5 hops: I audited the Firecracker escape

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5 min read
Muse's 2nd feature in 2 days builds your apps for you

Muse's 2nd feature in 2 days builds your apps for you

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3 min read
AI spend flatlined at +1.5% as Anthropic's $2T IPO shrinks

AI spend flatlined at +1.5% as Anthropic's $2T IPO shrinks

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4 min read
Paint's RCE fix has 2 build numbers. Only 1 is real

Paint's RCE fix has 2 build numbers. Only 1 is real

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4 min read
0.85ms writes: I re-ran Firenook's 40x claim on a 4-core VM

0.85ms writes: I re-ran Firenook's 40x claim on a 4-core VM

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4 min read
Astra did 40% less safety work — OpenAI's own report

Astra did 40% less safety work — OpenAI's own report

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4 min read
8 leaks pass Anthropic's 23-test email fix

8 leaks pass Anthropic's 23-test email fix

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5 min read
2 years of bank data: Claude reads your money now

2 years of bank data: Claude reads your money now

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4 min read
Kimi's 1.56 TB download lost 20 rows to Opus

Kimi's 1.56 TB download lost 20 rows to Opus

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5 min read
300 chars opened a locked musl account on try 2

300 chars opened a locked musl account on try 2

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4 min read
$350M: Dropbox's biggest deal ever is an AI storage bet

$350M: Dropbox's biggest deal ever is an AI storage bet

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3 min read
DuckDuckGo's 1.7% share pitches schools an AI-free search

DuckDuckGo's 1.7% share pitches schools an AI-free search

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3 min read
19 MB proves a 400B model reply at 72x cost

19 MB proves a 400B model reply at 72x cost

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5 min read
7 Go jsonv2 breaks I verified in Go 1.27

7 Go jsonv2 breaks I verified in Go 1.27

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4 min read
Google walked back 1 bundle, kept Search's AI bundle

Google walked back 1 bundle, kept Search's AI bundle

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3 min read
3 of 4 weight games guessed from raw numbers

3 of 4 weight games guessed from raw numbers

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3 min read
213 Chrome fixes: 130 were found in-house

213 Chrome fixes: 130 were found in-house

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3 min read
$3.2T hidden AI debt grew 90% in 6 months

$3.2T hidden AI debt grew 90% in 6 months

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4 min read
3 of 10 colors failed Safari's dark-mode contrast bar

3 of 10 colors failed Safari's dark-mode contrast bar

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4 min read
Postman installed itself into Codex and Claude

Postman installed itself into Codex and Claude

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4 min read
Apple's 18+ AI rule changes nothing for the big apps

Apple's 18+ AI rule changes nothing for the big apps

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3 min read
0 contributions: NVIDIA's 2,036-star ontology audit

0 contributions: NVIDIA's 2,036-star ontology audit

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4 min read
1-hour timezone gap broke Canada's Microsoft calendars

1-hour timezone gap broke Canada's Microsoft calendars

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5 min read
7.38M users: SpaceX isn't buying customers, it's buying time

7.38M users: SpaceX isn't buying customers, it's buying time

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3 min read
0 of 40 HN links died in 13 months. That's the wrong sample

0 of 40 HN links died in 13 months. That's the wrong sample

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4 min read
Ubuntu's 9.8 TCP flaw: still unpatched 17 days after Debian

Ubuntu's 9.8 TCP flaw: still unpatched 17 days after Debian

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3 min read
7.9% to 48.1%: LLM rewrote Qwen weights, no training

7.9% to 48.1%: LLM rewrote Qwen weights, no training

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4 min read
11 of 11 JS cost gaps overlap: I re-ran the tables

11 of 11 JS cost gaps overlap: I re-ran the tables

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6 min read
61% more Postgres backports: I recounted the delay

61% more Postgres backports: I recounted the delay

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4 min read
$173M ads, one AI rebrand: OpenAI data centers

$173M ads, one AI rebrand: OpenAI data centers

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3 min read
0 of 17 third-party scripts had integrity checks

0 of 17 third-party scripts had integrity checks

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3 min read
15 of 15 hidden instructions survived every PDF extractor

15 of 15 hidden instructions survived every PDF extractor

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3 min read
95% replaced: Binance reopens after $6.3B heist

95% replaced: Binance reopens after $6.3B heist

Comments 1
4 min read
2 phrases run VOLTA's fallback, tested on 24 replies

2 phrases run VOLTA's fallback, tested on 24 replies

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4 min read
9.8 TCP flaw, 2-line fix: I audited my own kernel

9.8 TCP flaw, 2-line fix: I audited my own kernel

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4 min read
xAI's 35 turbines just lost their 'mobile' loophole

xAI's 35 turbines just lost their 'mobile' loophole

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3 min read
50% of CPU time was memory stalls, so I re-ran the test

50% of CPU time was memory stalls, so I re-ran the test

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3 min read
510 bytes boot a neural network that dreams dmesg

510 bytes boot a neural network that dreams dmesg

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4 min read
OpenAI cut its funding target by a third. I did the shortfall math.

OpenAI cut its funding target by a third. I did the shortfall math.

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3 min read
Northflank is the ninth AI platform breached in October. I read its status page like a timeline.

Northflank is the ninth AI platform breached in October. I read its status page like a timeline.

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4 min read
A public ChatGPT share could run code as you. I checked the two parts that made it possible.

A public ChatGPT share could run code as you. I checked the two parts that made it possible.

Comments
5 min read
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