Subj : GPT-5.2 🤖, Rivian autonomy 🛻, compound engineering 👨💻
To : All
From : TLDR
Date : Fri Dec 12 2025 11:23 am
--Woc67yw2
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GPT-5.2 has been released in three variants: Instant, Thinking, and
Pro. =
5.2 is designed to unlock more economic value for
people=C2=A0=E2=80=
=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=
=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=
=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=
=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=
=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=
=E2=80=8C=C2=A0=E2=80=8C=C2=A0=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=
=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=
=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=
=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=
=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=
=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0
=
Sign Up [1] |Advertise [2]|View Online [3]=20
=09=09TLDR=20
=09=
=09TOGETHER WITH [Wispr] [4]
TLDR 2025-12-12
THE AI VOICE TOOL T=
HAT HELPS YOU MOVE FASTER EVERYWHERE (SPONSOR) [4]
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It turns your v=
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BIG TE=
CH & STARTUPS
OPENAI RELEASES GPT-5.2 AFTER =E2=80=9CCODE RED=
=E2=80=9D GOOGLE THREAT ALERT (6
MINUTE READ) [5]=20
GPT-5.2 has been=
released in three variants: Instant, Thinking, and
Pro. 5.2 is designed =
to unlock more economic value for people. It
features a 400,000-token con=
text window and a knowledge cutoff date of
August 31. GPT-5.1 will remain=
available in ChatGPT for paid users for
three months. GPT-5.2 is OpenAI'=
s third major model release since
August.=20
GOOGLE ANNOUNCES EXPERIM=
ENTAL =E2=80=98DISCO' BROWSER WITH =E2=80=98GENTABS'
POWERED BY GEMINI 3 =
(2 MINUTE READ) [6]=20
Google Labs' Disco browser features a Gemini 3-p=
owered 'GenTab' that
can build interactive web applications to help users=
complete tasks.
It can look at open tabs and chat history to determine w=
hat tool best
serves a prompt. Every generative element ties back to the =
web and
will link to the original sources. The most compelling ideas from=
Disco may one day make their way into Chrome. A link to the waitlist
t=
o try Disco is available in the article.=20
=F0=9F=9A=80=20
SCIENCE &=
FUTURISTIC TECHNOLOGY
RIVIAN ANNOUNCES NEW AI TECH, CHIP, AND ROBOTA=
XI AMBITIONS (8 MINUTE
READ) [7]=20
Rivian has developed a custom chi=
p, a car computer, and new
artificial intelligence models to bring autono=
mous features to its
vehicles. The company plans to roll out a subscripti=
on in early 2026
that will provide continuously expanding capabilities po=
wered by
Rivian Autonomy Processors and autonomy computers. A near-future=
update will include a 'Universal Hands-Free' capability that will
enab=
le Rivian customers to drive hands-free on more than 3.5 million
miles of=
roads in North America.=20
AI HACKERS ARE COMING DANGEROUSLY CLOSE TO =
BEATING HUMANS (8 MINUTE
READ) [8]=20
AI hacking tools are now surpas=
sing some human hackers. Stanford's
Artemis AI bot beat all except one of=
the 10 professional penetration
testers in a test of its abilities. It f=
ound bugs at lightning speed
while running at under $60 an hour. However,=
about 18% of the bugs it
found were false positives. It also missed an o=
bvious bug that most of
the human testers spotted.=20
=F0=9F=92=BB=20
=
PROGRAMMING, DESIGN & DATA SCIENCE
CUT QA CYCLES FROM HOURS TO MIN=
UTES WITH AUTOMATED TESTING (SPONSOR)
[9]=20
If slow QA cycles are ho=
lding your team back from releasing faster,
try QA Wolf [10]. Their fully=
managed, AI-native service delivers 80%
AUTOMATED E2E TEST COVERAGE in w=
eeks and helps teams SHIP 5=C3=97 FASTER
by cutting QA cycles from hours =
to minutes. With unlimited parallel
runs, 24-hour test maintenance, and z=
ero flakes, teams like Drata [11]
have achieved 86% FASTER QA CYCLES.
=
Schedule a demo to learn more =E2=86=92 [12]
COMPOUND ENGINEERING:=
HOW EVERY CODES WITH AGENTS (13 MINUTE READ)
[13]=20
In traditional =
engineering, each feature makes the next feature
harder to build because =
of new edge cases, interdependencies, and
issues. In compound engineering=
, each feature makes the next feature
easier to build because compound en=
gineering creates a learning loop
for agents and team members so that eac=
h bug, failed test, or insight
gets documented and used by future agents.=
AI's knowledge of the
codebase grows along with it, making future develo=
pment work faster.
This post provides a high-level sense of how to start =
compound
engineering with AI.=20
AN SVG IS ALL YOU NEED (4 MINUTE REA=
D) [14]=20
SVGs are vector graphics in a simple XML format. They are su=
pported
on almost every device and platform. With embeddable scripts to m=
ake
them interactive, SVGs are way more capable than many people realize.=
It is entirely feasible to implement an entire data analysis pipeline
=
in an SVG. A completely self-contained SVG file can fetch data from a
ver=
sioned repository, process that data, and generate visualizations
without=
any server-side magic required.=20
=F0=9F=8E=81=20
MISCELLANEOUS
=
SOCIAL-MEDIA BAN IMPOSES BRAVE NEW WORLD ON AUSTRALIAN TEENS (8
MINUT=
E READ) [15]=20
Several social media platforms are now required to shut=
down the
accounts of teens under 16 in Australia under a new law intende=
d to
shelter children from the mental-health risks of life online. These=
companies are now required to take reasonable steps to enforce the new=
rules under threat of penalty. Parents and children won't be fined.
Au=
stralia isn't alone in its effort - Malaysia, the EU, New Zealand,
Florid=
a, and other regions are also discussing similar restrictions.=20
DISNE=
Y TO INVEST $1 BILLION IN OPENAI AND LICENSE CHARACTERS FOR USE
IN CHATGP=
T, SORA (7 MINUTE READ) [16]=20
Disney is investing $1 billion into Ope=
nAI. The three-year licensing
deal will allow OpenAI's users to generate =
videos with Disney's
characters and properties in them. The agreement inc=
ludes provisions
that limit what Disney characters can do in generated vi=
deos. The
partnership is the result of nearly two years of talks between =
the two
companies.=20
=E2=9A=A1=20
QUICK LINKS
COINBASE READY=
TO LAUNCH PREDICTION MARKETS, TOKENIZED STOCKS (2
MINUTE READ) [17]=20
=
Coinbase plans to launch the prediction markets and tokenized
equitie=
s at a showcase on December 17.=20
ANTHROPIC'S VISION ADVANTAGE IS A LO=
T LIKE APPLE'S FROM THE 2010S (2
MINUTE READ) [18]=20
Apple created a=
n ecosystem where the tech got out of the way and let
people create and w=
ork.=20
MY FAMILY'S EMBRYO SELECTION PROCESS (15 MINUTE READ) [19]=20
=
Herasight is a startup that offers embryo forecasts on disease risk
a=
nd IQ.=20
GET 30% OFF SEMRUSH ONE TO MONITOR YOUR BRAND EVERYWHERE PEOP=
LE ARE
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CRYPTO MOGUL DO KWON SENTENCED TO 15 YEARS IN PRISON FOR $40 BILLION=
STABLECOIN FRAUD (4 MINUTE READ) [21]=20
Do Kwon's offense caused re=
al people to lose $40 billion in real
money.=20
HARDWARE IS A FRUIT (=
20 MINUTE READ) [22]=20
Hardware is the nature layer, a firm base that =
creates room for
freedom and experimentation at the higher layers.=20
=
THE POLYGLOT NEUROSCIENTIST RESOLVING HOW THE BRAIN PARSES LANGUAGE
(15 =
MINUTE READ) [23]=20
There is evidence of a language network in the hum=
an brain with
similarities to large language models.=20
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eedback, just respond to this email!=20
Thanks for reading,=20
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--Woc67yw2
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TLDR
GPT-5.2 ha=
s been released in three variants: Instant, Thinking, and Pro. 5.2 is desi=
gned to unlock more economic value for people =E2=80=8C =E2=80=8C=
=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C=
=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C=
=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C=
=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C=
=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=
=80=8C
Google announces experiment=
al =E2=80=98Disco' browser with =E2=80=98GenTabs' powered by Gemini 3 (2 mi=
nute read)
Google Labs' Disco browser features a G=
emini 3-powered 'GenTab' that can build interactive web applications to hel=
p users complete tasks. It can look at open tabs and chat history to determ=
ine what tool best serves a prompt. Every generative element ties back to t=
he web and will link to the original sources. The most compelling ideas fro=
m Disco may one day make their way into Chrome. A link to the waitlist to t=
ry Disco is available in the article.
|
|
Science & Futuristic Technology
|
Rivian announces new AI tec=
h, chip, and robotaxi ambitions (8 minute read)
Rivian has developed a custom chip, a c=
ar computer, and new artificial intelligence models to bring autonomous fea=
tures to its vehicles. The company plans to roll out a subscription in earl=
y 2026 that will provide continuously expanding capabilities powered by Riv=
ian Autonomy Processors and autonomy computers. A near-future update will i=
nclude a 'Universal Hands-Free' capability that will enable Rivian customer=
s to drive hands-free on more than 3.5 million miles of roads in North Amer=
ica.
|
AI Hackers Are Coming Dange=
rously Close to Beating Humans (8 minute read)
AI hacking tools are now surpassing som=
e human hackers. Stanford's Artemis AI bot beat all except one of the 10 pr=
ofessional penetration testers in a test of its abilities. It found bugs at=
lightning speed while running at under $60 an hour. However, about 18% of =
the bugs it found were false positives. It also missed an obvious bug that =
most of the human testers spotted.
|
|
Programming, Design & Data Science
|
Compound Engineering: How E=
very Codes With Agents (13 minute read)
In traditional engineering, each featur=
e makes the next feature harder to build because of new edge cases, interde=
pendencies, and issues. In compound engineering, each feature makes the nex=
t feature easier to build because compound engineering creates a learning l=
oop for agents and team members so that each bug, failed test, or insight g=
ets documented and used by future agents. AI's knowledge of the codebase gr=
ows along with it, making future development work faster. This post provide=
s a high-level sense of how to start compound engineering with AI.
|
An SVG is all you need (4 m=
inute read)
SVGs are vector graphics in a simple XM=
L format. They are supported on almost every device and platform. With embe=
ddable scripts to make them interactive, SVGs are way more capable than man=
y people realize. It is entirely feasible to implement an entire data analy=
sis pipeline in an SVG. A completely self-contained SVG file can fetch data=
from a versioned repository, process that data, and generate visualization=
s without any server-side magic required.
|
|
Social-Media Ban Imposes Br=
ave New World on Australian Teens (8 minute read)
Several social media platforms are now =
required to shut down the accounts of teens under 16 in Australia under a n=
ew law intended to shelter children from the mental-health risks of life on=
line. These companies are now required to take reasonable steps to enforce =
the new rules under threat of penalty. Parents and children won't be fined.=
Australia isn't alone in its effort - Malaysia, the EU, New Zealand, Flori=
da, and other regions are also discussing similar restrictions.
|
|
|
|
|
|
--Woc67yw2--
.