To : All

Subj : xAI raises $10B 💰, OpenAI's leaked memo 📝, context window architecture 🧑‍💻
To : All
From : TLDR
Date : Wed Jul 02 2025 10:48 am

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xAI has raised a combined $10 billion in debt and equity through
secured =
notes, term loans, and a strategic equity
investment=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 [TLDR] [4]

TLDR 2025-07-02

DELVE GENERATED $1M IN PIPELINE=
FROM TLDR NEWSLETTER ADS (SPONSOR)
[4]=20

Delve ran 4 ads across 2 T=
LDR newsletters and brought in 66 leads,
with a meaningful chunk from ent=
erprise. The result: $1M in attributed
pipeline and a 52x ROI.

This =
case study breaks down their strategy, results, and example ads.

Read =
the Delve case study. [4]

=F0=9F=93=B1=20

BIG TECH & STARTUPS

=
ELON MUSK'S XAI RAISES $10 BILLION IN DEBT AND EQUITY AS IT STEPS UP
CHA=
LLENGE TO OPENAI (3 MINUTE READ) [5]=20

xAI has raised a combined $10 b=
illion in debt and equity through
secured notes, term loans, and a strate=
gic equity investment. The
funding will give the startup more firepower t=
o build out
infrastructure and develop its Grok AI chatbot. xAI has alrea=
dy
installed 200,000 GPUs at its Colossus facility in Memphis, Tennessee.=

It plans to build a 1 million GPU facility outside of Memphis.=20

SA=
M ALTMAN SLAMS META'S AI TALENT-POACHING SPREE: =E2=80=98MISSIONARIES
WIL=
L BEAT MERCENARIES' (4 MINUTE READ) [6]=20

OpenAI CEO Sam Altman has hi=
nted that the company is evaluating
compensation for the entire research =
organization in response to Meta
CEO Mark Zuckerberg's recent AI talent-p=
oaching spree. He has
dismissed the recruiting efforts, saying that Meta'=
s actions will lead
to deep cultural problems down the road. Altman says =
that Meta failed
to get OpenAI's top people and that Meta had to go quite=
far down the
list.=20

=F0=9F=9A=80=20

SCIENCE & FUTURISTIC TECHNOL=
OGY

MODERNA SAYS MRNA FLU VACCINE SAILED THROUGH TRIAL, BEATING STAND=
ARD
SHOT (3 MINUTE READ) [7]=20

Moderna's mRNA-based seasonal flu vac=
cine was 27% more effective at
preventing influenza infections than a sta=
ndard flu shot in a study
that included nearly 41,000 people aged 50 and =
above. The new shot,
dubbed mRNA-1010, hit the highest efficacy target se=
t for the trial.
The positive results come in the wake of one of the wors=
t flu seasons
in years. An estimated 770,000 people in the US were hospit=
alized for
the flu during the 2024-2025 flu season.=20

TESLA UNVEILS =
ITS LFP BATTERY FACTORY, CLAIMS IT'S ALMOST READY (3
MINUTE READ) [8]=20
=

Tesla claims that its lithium-iron-phosphate (LFP) battery cell
facto=
ry in Nevada is nearly ready to start production. The company's
cheapest =
electric vehicles all utilize LFP cells, as does its entire
range of ener=
gy storage products - it currently heavily relies on
Chinese manufacturer=
s. Tesla aims to produce about 10 GWh of LFP
battery cells per year at th=
e new factory. The cells are expected to
be used in the Tesla Megapack, w=
hich is produced in the US.=20

=F0=9F=92=BB=20

PROGRAMMING, DESIGN & =
DATA SCIENCE

CONTEXT ENGINEERING REALIZED: CONTEXT WINDOW ARCHITECTUR=
E (4 MINUTE
READ) [9]=20

The Context Window Architecture (CWA) is a c=
onceptual reference
architecture aimed at bringing engineering discipline=
to every large
language model (LLM) prompt construction. It directly add=
resses
fundamental limitations with LLMs, including statelessness, cognit=
ive
fallibility, and ad-hoc prompting. The real value of an AI applicatio=
n
isn't just the LLM, but the system intelligently managing its context.=

Adopting CWA increases reliability, predictability, debuggability, and=

security; lowers maintenance requirements; creates clear control
point=
s for sensitive data, ethical guidelines, and compliance; and
provides a =
shared vocabulary and mental model for collaborative
development.=20

=
I SHIPPED A MACOS APP BUILT ENTIRELY BY CLAUDE CODE (19 MINUTE READ)
[10]=
=20

Context is a native app for debugging MCP servers powered by Apple'=
s
SwiftUI framework. It was built almost completely by Claude Code. Of
=
the 20,000 lines in the project, less than 1,000 lines were written by
ha=
nd. This post explains how Context's developer chose their tools,
what th=
ose tools are good at and bad at, and how other developers can
leverage t=
hem to maximize the quality of their generated code output.
IDEs of the f=
uture will focus on enabling developers to prime context
for agents and s=
et up the feedback loops that are essential to helping
agents succeed wit=
h tasks.=20

=F0=9F=8E=81=20

MISCELLANEOUS

PAY UP OR STOP SCRAPI=
NG: CLOUDFLARE PROGRAM CHARGES BOTS FOR EACH
CRAWL (7 MINUTE READ) [11] =

Cloudflare is experimenting with a new feature that allows content=

creators to charge a fee to stop AI crawlers from scraping their
websi=
tes. The 'pay-per-crawl' feature is currently in a private beta -
any con=
tent creator interested in joining can sign up. It allows
publishers to s=
et a price for bots to pay before scraping content.
Publishers have the o=
ption to charge some bots while letting other
bots scrape for free.=20
=

CHINA IS QUICKLY ERODING AMERICA'S LEAD IN THE GLOBAL AI RACE (11
MIN=
UTE READ) [12]=20

Companies and organizations in Europe, the Middle Eas=
t, Africa, and
Asia are turning to large language models from Chinese com=
panies as
alternatives to offerings from the US. While US AI technology i=
s
widely seen as the industry's gold standard, Chinese companies offer
=
performance that is nearly as good at vastly lower prices. Leading
Chines=
e AI companies have open-sourced their models, which could
pressure rival=
s in the US to justify keeping their models private and
the premiums they=
charge for their services.=20

=E2=9A=A1=20

QUICK LINKS

CRAVING=
MORE AI IN YOUR INBOX? (SPONSOR) [13]=20

TLDR AI is your daily fix of =
LLMs, GenAI, and deep learning goodness.
Same TLDR format. Still free.
=

Subscribe now. [13]

X IS PILOTING A PROGRAM THAT LETS AI CHATBOTS =
GENERATE COMMUNITY
NOTES (3 MINUTE READ) [14]=20

AI-generated notes w=
ill go through the same vetting process as notes
submitted by humans to e=
ncourage accuracy.=20

INTRODUCING PAY PER CRAWL: ENABLING CONTENT OWNER=
S TO CHARGE AI
CRAWLERS FOR ACCESS (5 MINUTE READ) [15]=20

Cloudflare=
's Pay per crawl feature, currently in private beta, grants
domain owners=
full control over their monetization strategy.=20

GRAMMARLY ADDS SUPER=
HUMAN EMAIL APP TO EXPAND ITS AI PLATFORM. HERE'S
WHAT THAT COULD MEAN FO=
R YOU (2 MINUTE READ) [16]=20

Grammarly plans to create a new way of wo=
rking where AI agents
collaborate across communication tools.=20

FIGM=
A IS GOING PUBLIC (1 MINUTE READ) [17]=20

Figma will trade on the New Y=
ork Stock Exchange under the ticker
symbol 'FIG'.=20

ASK HN: IS YOUR =
COMPANY FORCING USE OF AI? (HACKER NEWS THREAD) [18]=20

Many workers ar=
e being encouraged to use AI tools, with only a few in
the thread reporti=
ng they are being forced to use the technology -
some companies are actua=
lly forcing non-use due to compliance or
security concerns.=20

WE'VE =
ISSUED OUR FIRST IP ADDRESS CERTIFICATE (4 MINUTE READ) [19]=20

Let's E=
ncrypt now offers certificates that cover IP addresses, valid
for only ab=
out six days.=20

Love TLDR? Tell your friends and get rewards!

Sha=
re your referral link below with friends to get free TLDR swag!=20

http=
s://refer.tldr.tech/1fd848fa/ [20]=20

=09=09 Track your referrals here. =
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nd engineers, you may want to ADVERTISE
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[email protected] and get
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If you have any comments=
or feedback, just respond to this email!=20

Thanks for reading,=20
Dan =
Ni [24] & Stephen Flanders [25]=20

Manage your subscriptions [26] to ou=
r other newsletters on tech,
startups, and programming. Or if TLDR isn't =
for you, please
unsubscribe [27].=20

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<div style=3D"display: none; max-height: 0px; overflow: hidden;">xAI has ra=
ised a combined $10 billion in debt and equity through secured notes, term =
loans, and a strategic equity investment =E2=80=8C =E2=80=8C&nbsp=
;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nbsp=
;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nbsp=
;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nbsp=
;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nbsp=
;=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 </div>

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color=3D"" style=3D"color: rgb(232, 192, 96) !important; --darkreader-inlin=
e-color:#e8c163; font-size:30px;">L</span><span data-darkreader-inline-colo=
r=3D"" style=3D"color: rgb(101, 195, 173) !important; --darkreader-inline-c=
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<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
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er" height=3D"20" style=3D"vertical-align:middle !important;" valign=3D"mid=
dle" width=3D"100%"><strong style=3D"vertical-align:middle !important; heig=
ht: 100%;">Together With </strong>
<a href=3D"https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tl=
dr.tech%2Fcase-studies%2Fdelve-drives-1m-in-attributed-pipeline-52x-roi-thr=
ough-tldr-ads%2F%3Futm_source=3Dtldr%26utm_medium=3Dnewsletter%26utm_campai=
gn=3Dprimary07022025/1/01000197cac0a10f-066c574e-b403-451d-8141-941825883d6=
7-000000/1V_2FiZhHCTVa-c3dlec4DJLotH1wrJCEWo8QxxWRIQ=3D412"><img src=3D"htt=
ps://images.tldr.tech/tldr50.png" valign=3D"middle" style=3D"vertical-align=
: middle !important; height: 100%;" alt=3D"TLDR"></a></td></tr></tbody></ta=
ble>

<table style=3D"table-layout: fixed; width:100%;" width=3D"100%"><tbody><tr=
><td style=3D"padding:0;border-collapse:collapse;border-spacing:0;margin:0;=
">
<div style=3D"text-align: center;">

<h1><strong>TLDR <span id=3D"date">2025-07-02</span></strong></h1>
</div>
</td></tr></tbody></table>

<table style=3D"table-layout: fixed; width:100%;" width=3D"100%"><tbody><tr=
id=3D"sponsy-copy"><td class=3D"container" style=3D"padding: 15px 15px;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Fadvertise.tldr.tech%2Fcase-studies%2Fdelve-drives-1m-in=
-attributed-pipeline-52x-roi-through-tldr-ads%2F%3Futm_source=3Dtldr%26utm_=
medium=3Dnewsletter%26utm_campaign=3Dprimary07022025/2/01000197cac0a10f-066=
c574e-b403-451d-8141-941825883d67-000000/KETN0H30MVJsKScFE0V3ngvpSTssti7MRt=
--3lY2boM=3D412">
<span>
<strong>Delve generated $1M in pipe=
line from TLDR newsletter ads (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Delve ran 4 ads across 2 TLDR newslette=
rs and brought in 66 leads, with a meaningful chunk from enterprise. The re=
sult: $1M in attributed pipeline and a 52x ROI.<p></p><p>This case study br=
eaks down their strategy, results, and example ads.</p><p><a href=3D"https:=
//tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2Fcase-st=
udies%2Fdelve-drives-1m-in-attributed-pipeline-52x-roi-through-tldr-ads%2F%=
3Futm_source=3Dtldr%26utm_medium=3Dnewsletter%26utm_campaign=3Dprimary07022=
025/3/01000197cac0a10f-066c574e-b403-451d-8141-941825883d67-000000/U7f_dpq4=
F3dz1cfxjdyoWjz2EutSHHfVnSRR6pQxZZk=3D412" rel=3D"noopener noreferrer nofol=
low" target=3D"_blank"><span>Read the Delve case study.</span></a>

</p>
</span></span></div>
</td></tr></tbody></table>
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<tr bgcolor=3D""><td class=3D"container">

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td style=3D"padding: 0px;">

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F=
=93=B1</span></div></div>
</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;">

<h1><strong>Big Tech & Startups</strong></h1>
</div>
</div>
</td></tr></tbody></table>

<table style=3D"table-layout: fixed; width: 100%;" width=3D"100%"><tbody><t=
r><td style=3D"padding:0;border-collapse:collapse;border-spacing:0;margin:0=
;" valign=3D"top">

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Fwww.cnbc.com%2F2025%2F07%2F01%2Felon-musk-xai-raises-10=
-billion-in-debt-and-equity.html%3Futm_source=3Dtldrnewsletter/1/01000197ca=
c0a10f-066c574e-b403-451d-8141-941825883d67-000000/ccQLNuMByR65jlPHYLzZnznF=
XPn6eGNWID4A0w57vCU=3D412">
<span>
<strong>Elon Musk's xAI raises $10 =
billion in debt and equity as it steps up challenge to OpenAI (3 minute rea=
d)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
xAI has raised a combined $10 billion i=
n debt and equity through secured notes, term loans, and a strategic equity=
investment. The funding will give the startup more firepower to build out =
infrastructure and develop its Grok AI chatbot. xAI has already installed 2=
00,000 GPUs at its Colossus facility in Memphis, Tennessee. It plans to bui=
ld a 1 million GPU facility outside of Memphis.
</span>
</span>
</div>
</td></tr></tbody></table>

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Fwww.wired.com%2Fstory%2Fsam-altman-meta-ai-talent-poach=
ing-spree-leaked-messages%2F%3Futm_source=3Dtldrnewsletter/1/01000197cac0a1=
0f-066c574e-b403-451d-8141-941825883d67-000000/DrkBTt5sfXv2adgCqNy3XVkPvs_K=
uolgz25JRxZi8fk=3D412">
<span>
<strong>Sam Altman Slams Meta's AI =
Talent-Poaching Spree: =E2=80=98Missionaries Will Beat Mercenaries' (4 minu=
te read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
OpenAI CEO Sam Altman has hinted that t=
he company is evaluating compensation for the entire research organization =
in response to Meta CEO Mark Zuckerberg's recent AI talent-poaching spree. =
He has dismissed the recruiting efforts, saying that Meta's actions will le=
ad to deep cultural problems down the road. Altman says that Meta failed to=
get OpenAI's top people and that Meta had to go quite far down the list.
</span>
</span>
</div>
</td></tr></tbody></table>

</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F=
=9A=80</span></div>
</div>
</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;">

<h1><strong>Science & Futuristic Technology</strong></h1>
</div>
</div>
</td></tr></tbody></table>

<table style=3D"table-layout: fixed; width: 100%;" width=3D"100%"><tbody><t=
r><td style=3D"padding:0;border-collapse:collapse;border-spacing:0;margin:0=
;" valign=3D"top">

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Farstechnica.com%2Fhealth%2F2025%2F07%2Fmoderna-says-its=
-mrna-seasonal-flu-shot-is-27-better-than-current-vaccine%2F%3Futm_source=
=3Dtldrnewsletter/1/01000197cac0a10f-066c574e-b403-451d-8141-941825883d67-0=
00000/Zg-2sS5zE7J7kuBZc_G5WygRHXRGl-gBECk38bgj9V4=3D412">
<span>
<strong>Moderna says mRNA flu vacci=
ne sailed through trial, beating standard shot (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Moderna's mRNA-based seasonal flu vacci=
ne was 27% more effective at preventing influenza infections than a standar=
d flu shot in a study that included nearly 41,000 people aged 50 and above.=
The new shot, dubbed mRNA-1010, hit the highest efficacy target set for th=
e trial. The positive results come in the wake of one of the worst flu seas=
ons in years. An estimated 770,000 people in the US were hospitalized for t=
he flu during the 2024-2025 flu season.
</span>
</span>
</div>
</td></tr></tbody></table>

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Felectrek.co%2F2025%2F07%2F01%2Ftesla-unveils-lfp-batter=
y-factory-claims-almost-ready%2F%3Futm_source=3Dtldrnewsletter/1/01000197ca=
c0a10f-066c574e-b403-451d-8141-941825883d67-000000/yo_rsUo6WJpqMWTypfz_xY0n=
DCueOHEfLd0UlwU-3Y4=3D412">
<span>
<strong>Tesla unveils its LFP batte=
ry factory, claims it's almost ready (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Tesla claims that its lithium-iron-phos=
phate (LFP) battery cell factory in Nevada is nearly ready to start product=
ion. The company's cheapest electric vehicles all utilize LFP cells, as doe=
s its entire range of energy storage products - it currently heavily relies=
on Chinese manufacturers. Tesla aims to produce about 10 GWh of LFP batter=
y cells per year at the new factory. The cells are expected to be used in t=
he Tesla Megapack, which is produced in the US.
</span>
</span>
</div>
</td></tr></tbody></table>

</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F=
=92=BB</span></div></div>
</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;">

<h1><strong>Programming, Design & Data Science</strong></h1>
</div>
</div>
</td></tr></tbody></table>

<table style=3D"table-layout: fixed; width: 100%;" width=3D"100%"><tbody><t=
r><td style=3D"padding:0;border-collapse:collapse;border-spacing:0;margin:0=
;" valign=3D"top">

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Fmrhillsman.com%2Fposts%2Fcontext-engineering-realized-c=
ontext-window-architecture%2F%3Futm_source=3Dtldrnewsletter/1/01000197cac0a=
10f-066c574e-b403-451d-8141-941825883d67-000000/TOw5ARZ9ZrpwuZXVteO5m9Xgwu1=
WfEJja6B2Jlxd848=3D412">
<span>
<strong>Context Engineering Realize=
d: Context Window Architecture (4 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
The Context Window Architecture (CWA) i=
s a conceptual reference architecture aimed at bringing engineering discipl=
ine to every large language model (LLM) prompt construction. It directly ad=
dresses fundamental limitations with LLMs, including statelessness, cogniti=
ve fallibility, and ad-hoc prompting. The real value of an AI application i=
sn't just the LLM, but the system intelligently managing its context. Adopt=
ing CWA increases reliability, predictability, debuggability, and security;=
lowers maintenance requirements; creates clear control points for sensitiv=
e data, ethical guidelines, and compliance; and provides a shared vocabular=
y and mental model for collaborative development.
</span>
</span>
</div>
</td></tr></tbody></table>

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Fwww.indragie.com%2Fblog%2Fi-shipped-a-macos-app-built-e=
ntirely-by-claude-code%3Futm_source=3Dtldrnewsletter/1/01000197cac0a10f-066=
c574e-b403-451d-8141-941825883d67-000000/cs7DmFBb13XD6ig-FCiYq_BAQ_QmGvjC5X=
QKDg1G1Yk=3D412">
<span>
<strong>I Shipped a macOS App Built=
Entirely by Claude Code (19 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Context is a native app for debugging M=
CP servers powered by Apple's SwiftUI framework. It was built almost comple=
tely by Claude Code. Of the 20,000 lines in the project, less than 1,000 li=
nes were written by hand. This post explains how Context's developer chose =
their tools, what those tools are good at and bad at, and how other develop=
ers can leverage them to maximize the quality of their generated code outpu=
t. IDEs of the future will focus on enabling developers to prime context fo=
r agents and set up the feedback loops that are essential to helping agents=
succeed with tasks.
</span>
</span>
</div>
</td></tr></tbody></table>

</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F=
=8E=81</span></div></div>
</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><strong><h1>Miscellaneous</h1></strong><=
/div>
</div>
</td></tr></tbody></table>

<table bgcolor=3D"" style=3D"table-layout: fixed; width: 100%;" width=3D"10=
0%"><tbody><tr><td style=3D"padding:0;border-collapse:collapse;border-spaci=
ng:0;margin:0;" valign=3D"top">

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Farstechnica.com%2Ftech-policy%2F2025%2F07%2Fpay-up-or-s=
top-scraping-cloudflare-program-charges-bots-for-each-crawl%2F%3Futm_source=
=3Dtldrnewsletter/1/01000197cac0a10f-066c574e-b403-451d-8141-941825883d67-0=
00000/ezkhmMfVwtFpJJcFuasOBor0TThTXwrBR95C872P-NY=3D412">
<span>
<strong>Pay up or stop scraping: Cl=
oudflare program charges bots for each crawl (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Cloudflare is experimenting with a new =
feature that allows content creators to charge a fee to stop AI crawlers fr=
om scraping their websites. The 'pay-per-crawl' feature is currently in a p=
rivate beta - any content creator interested in joining can sign up. It all=
ows publishers to set a price for bots to pay before scraping content. Publ=
ishers have the option to charge some bots while letting other bots scrape =
for free.
</span>
</span>
</div>
</td></tr></tbody></table>

<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi=
dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
;">
<div class=3D"text-block">
<span>
<a href=3D"https://tracking.tldrnewsletter.=
com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2FfXunbH/1/01000197cac0a10f-06=
6c574e-b403-451d-8141-941825883d67-000000/HCVGfs2gWfQAt4J1vRuEj_ueeKLNcdVTi=
5J3JtdL5R8=3D412">
<span>
<strong>China Is Quickly Eroding Am=
erica's Lead in the Global AI Race (11 minute read)</strong>
</span>
</a>
<br>
<br>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V=
erdana, sans-serif;">
Companies and organizations in Europe, =
the Middle East, Africa, and Asia are turning to large language models from=
Chinese companies as alternatives to offerings from the US. While US AI te=
chnology is widely seen as the industry's gold standard, Chinese companies =
offer performance that is nearly as good at vastly lower prices. Leading Ch=
inese AI companies have open-sourced their models, which could pressure riv=
als in the US to justify keeping their models private and the premiums they=
charge for their services.
</span>
</span>
</div>
</td></tr></tbody></table>

</td></tr></tbody></table>

<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa=
cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi=
ng-top: 0px; padding-bottom: 0px;">
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Figma will trade on the New York Stock =
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Let's Encrypt now offers certificates t=
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