Subj : ChatGPT ads 📱, Elon vs OpenAI ⚖️, building a social filesystem 👨‍💻 To : All From : TLDR Date : Mon Jan 19 2026 11:25 am --st2LjBCF Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable OpenAI plans to start testing ads for Free and Go tier users in the comin= g weeks. Plus, Pro, Business, and Enterprise users will not see ads=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 = =09=09TOGETHER WITH [TLDR] [4] TLDR 2026-01-19 REACH MILLI= ONS OF TECH PROFESSIONALS AT SCALE (SPONSOR) [4]=20 Over 6 million tech= professionals read TLDR including developers, product managers, marketer= s, designers and executives. Get in front of your target audience with an= ad placement just like this one! Learn more [4] about running a test cam= paign.=20 =F0=9F=93=B1=20 BIG TECH & STARTUPS OPENAI'S LONG-RUM= ORED INTRODUCTION OF ADS TO CHATGPT JUST BECAME A WHOLE LOT MORE CONCRETE= (2 MINUTE READ) [5]=20 OpenAI plans to start testing ads in the US for= Free and Go tier users in the coming weeks. Plus, Pro, Business, and Ent= erprise users will not see ads. The Go tier is a new $8 per month subscri= ption with access to GPT-5.2 Thinking. Ads will not influence the answers= that ChatGPT provides and will always be separated and clearly labeled.= Conversations will be kept private from advertisers. A screenshot of w= hat the ads will look like is available in the article.=20 MUSK SEEKS U= P TO $134 BILLION DAMAGES FROM OPENAI, MICROSOFT (3 MINUTE READ) [6]=20 = Elon Musk wants OpenAI and Microsoft to pay him damages in the range = of $79 billion to $134 billion as he claims OpenAI defrauded him by aband= oning its nonprofit roots and partnering with Microsoft. The court filing= says Musk is entitled to a chunk of OpenAI's current $500 billion valuat= ion as he donated $38 million in seed money when he helped found the star= tup in 2015. Musk also plans to seek punitive damages and possibly an inj= unction. OpenAI claims the lawsuit is baseless and is aimed at harassment= ..=20 =F0=9F=9A=80=20 SCIENCE & FUTURISTIC TECHNOLOGY GOING FOUN= DER MODE ON CANCER (52 MINUTE READ) [7]=20 Sid Sijbrandij, founder of G= itLab, got the news that he had cancer on November 18, 2022. He underwent= a brutal care regimen that involved surgical removal of his tumorous ver= tebrae and rounds of radiation and chemotherapy so intense that he requir= ed four blood transfusions to stay alive. After his cancer resurfaced in = 2024, he decided to go 'founder mode' on his cancer, assembling a team to= navigate his care journey. This article details the story of how he took= charge of his health.=20 HOW HUMAN SHOULD YOUR HUMANOID BE? (11 MINU= TE READ) [8]=20 While the humanoid form factor is likely to stay due to= its clear advantages, that doesn't mean that robots will still stay huma= n. Boston Dynamics' Atlas is an interesting look at a very different vi= sion of what a humanoid robot can and should be. Robots don't have to be = limited to what evolution resulted in. They can be engineered to have cap= abilities that far exceed humans.=20 =F0=9F=92=BB=20 PROGRAMMING, DES= IGN & DATA SCIENCE AI AGENTS STUCK IN PILOT PURGATORY? HERE'S WHY (SP= ONSOR) [9]=20 Over 70% of orgs are using AI agents, but only 11% of age= ntic use cases made it to prod in 2025. In this webinar [10], Camunda's C= TO joins automation experts to cover the proven controls that help AI a= gents progress. Secure your spot to learn how to move AI agents from pilo= t to prod. [10]=20 A SOCIAL FILESYSTEM (42 MINUTE READ) [11]=20 Fil= es represent personal creations, so they should live somewhere users cont= rol. File systems allow data to outlive the software used to create it. O= ther apps are able to open the same files to read or write data, and it's= up to the users' choice on what app to use. This is analogous to how the= AT protocol (the protocol behind Bluesky and other social apps) works. = ASCII CHARACTERS ARE NOT PIXELS: A DEEP DIVE INTO ASCII RENDERING (4= 2 MINUTE READ) [12]=20 This article details how a developer created a= n image-to-ASCII renderer. The resulting renderer converts 3D models and = still images into ASCII. The renderer is interactive, and you can move th= e 3D models around by dragging. The post is detailed and contains many = interactive examples explaining the work.=20 =F0=9F=8E=81=20 MISCELLA= NEOUS TLDR IS HIRING A SENIOR SOFTWARE ENGINEER, APPLIED AI ($200K-$3= 00K, FULLY REMOTE) [13]=20 We're hiring the first engineer on TLDR's = new Applied AI team. You'll build production AI agents and design modular= , composable Claude Skills to let non-technical teammates create their ow= n AI workflows. Learn more [14].=20 DON'T WASTE YOUR BACK PRESSURE (4= MINUTE READ) [15]=20 Agents have improved over the last year due to st= ructures that provide them with automated feedback and allow them to work= on longer-horizon tasks. This back pressure allows agents to identify = mistakes, and the feedback helps them align on tasks for much longer. Dev= elopers should think about how to build back pressure into their workflow= s. Afterwards, they can loop agents until they have stamped out all of th= e inconsistencies and issues.=20 AMERICA IS SLOW-WALKING INTO A POLYMAR= KET DISASTER (6 MINUTE READ) [16]=20 Prediction markets let people wa= ger on basically anything. These sites have recently boomed in popularity= and are creeping into the mainstream. They are transforming news into a = form of gambling. It is unclear whether these sites are meaningful predic= tors of anything, but the markets are manipulable.=20 =E2=9A=A1=20 = QUICK LINKS SAY GOODBYE TO THAT AWKWARD MEETING TRANSCRIPTION BOT (SP= ONSOR) [17]=20 Granola is AI that transcribes your meetings and enhance= s your notes - so you can give each call your full attention. The best pa= rt? There's no meeting bot. Try Granola free [18]=20 BREX'S AI HAIL M= ARY =E2=80=94 WITH CTO JAMES REGGIO (92 MINUTE READ) [19]=20 This post = discusses Brex's culture, how it facilitated an aggressive shift towards = a culture of AI fluency, and how Brex modernized its tech stack and appli= ed AI agents to streamline its business.=20 DOES AI MEAN THE DEMAND ON = LABOR GOES UP? (2 MINUTE READ) [20]=20 Increased productivity means the= re's more that you could be doing.=20 JQUERY 4.0.0 (20 MINUTE READ) [21= ]=20 jQuery 4.0.0 is the first major version release in almost 10 years= and includes some breaking changes.=20 TESLA AI5 CHIP NEARS COMPLETI= ON, ELON MUSK TEASES 9-MONTH DEVELOPMENT CADENCE (2 MINUTE READ) [22]=20 = Tesla plans to iterate rapidly, aiming for a nine-month design cycle.= HISTOMAT OF F/OSS: WE SHOULD RECLAIM LLMS, NOT REJECT THEM (18 MI= NUTE READ) [23]=20 Developers should define the rules LLMs operate un= der instead of rejecting and blocking them.=20 BRING BACK OPS PRIDE (= 14 MINUTE READ) [24]=20 Most companies are bad at ops, and this is beco= ming clear as AI adds more chaos to systems already defined by chaos.=20 = Love TLDR? Tell your friends and get rewards! Share your referral = link below with friends to get free TLDR swag!=20 https://refer.tldr.te= ch/66662a80/ [25]=20 =09=09 Track your referrals here. [26]=20 Want t= o advertise in TLDR? =F0=9F=93=B0 If your company is interested in re= aching an audience of tech executives, decision-makers and engineers, you= may want to ADVERTISE WITH US [27].=20 Want to work at TLDR? = =F0=9F=92=BC APPLY HERE [28], CREATE YOUR OWN ROLE [29] or send a fri= end's resume to jobs@tldr.tech and get $1k if we hire them! TLDR is one o= f INC.'S BEST BOOTSTRAPPED BUSINESSES [30] of 2025.=20 If you have an= y comments or feedback, just respond to this email!=20 Thanks for readin= g,=20 Dan Ni [31] & Stephen Flanders [32]=20 Manage your subscriptions = [33] to our other newsletters on tech, startups, and programming. Or if T= LDR isn't for you, please unsubscribe [34].=20 =20 Links: ------= [1] https://tldr.tech/signup?utm_source=3Dtldr [2] https://advertise.t= ldr.tech/?utm_source=3Dtldr&utm_medium=3Dnewsletter&utm_campaign=3Dadvertis= etopnav [3] https://a.tldrnewsletter.com/web-version?ep=3D1&lc=3D265280dc= -d4e0-11f0-a661-1b9fa34a893d&p=3Dc0902ba0-f51e-11f0-baf5-698ad8c80c74&pt=3D= campaign&t=3D1768821923&s=3Dec3396642d48bf1a89950295c8245c035f02230bb53f0ea= bc5dce0280381cef7 [4] https://advertise.tldr.tech/?utm_source=3Dtldr&utm_= medium=3Dnewsletter&utm_campaign=3Dprimary01192026 [5] https://simonwilli= son.net/2026/Jan/16/chatgpt-ads/?utm_source=3Dtldrnewsletter [6] https://= links.tldrnewsletter.com/TKDE48 [7] https://centuryofbio.com/p/sid?utm_so= urce=3Dtldrnewsletter [8] https://itcanthink.substack.com/p/how-human-sho= uld-your-humanoid-be?utm_source=3Dtldrnewsletter [9] https://bit.ly/4qmCY= DB?utm_source=3Dtldrnewsletter [10] https://bit.ly/4qmCYDB [11] https:/= /overreacted.io/a-social-filesystem/?utm_source=3Dtldrnewsletter [12] htt= ps://alexharri.com/blog/ascii-rendering?utm_source=3Dtldrnewsletter [13] = https://jobs.ashbyhq.com/tldr.tech/3b21aaf8-dea5-4127-be71-602d30e5001e?utm= _source=3Dtldrnewsletter [14] https://jobs.ashbyhq.com/tldr.tech/3b21aaf8= -dea5-4127-be71-602d30e5001e [15] https://banay.me/dont-waste-your-backpr= essure/?utm_source=3Dtldrnewsletter [16] https://www.msn.com/en-us/money/= markets/america-is-slow-walking-into-a-polymarket-disaster/ar-AA1Upfdb?utm_= source=3Dtldrnewsletter [17] https://www.granola.ai/?via=3Dadops-tldr-tec= h&dub_id=3DwdUSuVWDUCvA6Dm3&utm_source=3Dtldrnewsletter [18] https://www.= granola.ai/?via=3Dadops-tldr-tech&dub_id=3DwdUSuVWDUCvA6Dm3 [19] https://= www.latent.space/p/brex?utm_source=3Dtldrnewsletter [20] https://notes.ph= ilippdubach.com/0005?utm_source=3Dtldrnewsletter [21] https://links.tldrn= ewsletter.com/TVBlu6 [22] https://www.teslarati.com/tesla-ai5-chip-nears-= completion-elon-musk-teases-9-month-development-cadence/?utm_source=3Dtldrn= ewsletter [23] https://writings.hongminhee.org/2026/01/histomat-foss-llm/= ?utm_source=3Dtldrnewsletter [24] https://charity.wtf/2026/01/19/bring-ba= ck-ops-pride-xpost/?utm_source=3Dtldrnewsletter [25] https://refer.tldr.t= ech/66662a80/ [26] https://hub.sparklp.co/sub_e87ba9c7d7c0/1 [27] https= ://advertise.tldr.tech/?utm_source=3Dtldr&utm_medium=3Dnewsletter&utm_campa= ign=3Dadvertisecta [28] https://jobs.ashbyhq.com/tldr.tech [29] https:/= /jobs.ashbyhq.com/tldr.tech/c227b917-a6a4-40ce-8950-d3e165357871 [30] htt= ps://www.linkedin.com/feed/update/urn:li:activity:7401699691039830016/ [3= 1] https://twitter.com/tldrdan [32] https://twitter.com/SteveFlanders22= [33] https://tldr.tech/tech/manage?email=3Dtldrnewsletter%40synchro.net= [34] https://a.tldrnewsletter.com/unsubscribe?ep=3D1&l=3Dcfa2d55a-b7be-1= 1e8-a3c9-06b79b628af2&lc=3D265280dc-d4e0-11f0-a661-1b9fa34a893d&p=3Dc0902ba= 0-f51e-11f0-baf5-698ad8c80c74&pt=3Dcampaign&pv=3D4&spa=3D1768820497&t=3D176= 8821923&s=3D5144679caeb5b30a12e2d0d1462c9d0e7f1e69046a659e221432bcb6eaa91ff= f --st2LjBCF Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable TLDR
OpenAI pla= ns to start testing ads for Free and Go tier users in the coming weeks. Plu= s, Pro, Business, and Enterprise users will not see ads =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 

TLDR

Together With 3D"TLDR"

TLDR 2026-01-19

Reach millions of tech prof= essionals at scale (Sponsor)

Over 6 million tech professionals read = TLDR including developers, product managers, marketers, designers and execu= tives. Get in front of your target audience with an ad placement just like = this one! Learn more abo= ut running a test campaign.
=F0=9F= =93=B1

Big Tech & Startups

OpenAI's long-rumored intro= duction of ads to ChatGPT just became a whole lot more concrete (2 minute r= ead)

OpenAI plans to start testing ads in th= e US for Free and Go tier users in the coming weeks. Plus, Pro, Business, a= nd Enterprise users will not see ads. The Go tier is a new $8 per month sub= scription with access to GPT-5.2 Thinking. Ads will not influence the answe= rs that ChatGPT provides and will always be separated and clearly labeled. = Conversations will be kept private from advertisers. A screenshot of what t= he ads will look like is available in the article.
Musk Seeks Up to $134 Billi= on Damages From OpenAI, Microsoft (3 minute read)

Elon Musk wants OpenAI and Microsoft to= pay him damages in the range of $79 billion to $134 billion as he claims O= penAI defrauded him by abandoning its nonprofit roots and partnering with M= icrosoft. The court filing says Musk is entitled to a chunk of OpenAI's cur= rent $500 billion valuation as he donated $38 million in seed money when he= helped found the startup in 2015. Musk also plans to seek punitive damages= and possibly an injunction. OpenAI claims the lawsuit is baseless and is a= imed at harassment.
=F0=9F= =9A=80

Science & Futuristic Technology

Going Founder Mode On Cance= r (52 minute read)

Sid Sijbrandij, founder of GitLab, got = the news that he had cancer on November 18, 2022. He underwent a brutal car= e regimen that involved surgical removal of his tumorous vertebrae and roun= ds of radiation and chemotherapy so intense that he required four blood tra= nsfusions to stay alive. After his cancer resurfaced in 2024, he decided to= go 'founder mode' on his cancer, assembling a team to navigate his care jo= urney. This article details the story of how he took charge of his health.
How Human Should Your Human= oid Be? (11 minute read)

While the humanoid form factor is likel= y to stay due to its clear advantages, that doesn't mean that robots will s= till stay human. Boston Dynamics' Atlas is an interesting look at a very di= fferent vision of what a humanoid robot can and should be. Robots don't hav= e to be limited to what evolution resulted in. They can be engineered to ha= ve capabilities that far exceed humans.
=F0=9F= =92=BB

Programming, Design & Data Science

AI agents stuck in pilot pu= rgatory? Here's why (Sponsor)

Over 70% of orgs are using AI agents, b= ut only 11% of agentic use cases made it to prod in 2025. In this webinar, Camunda's CTO joins automation exp= erts to cover the proven controls that help AI agents progress. Secure your= spot to learn how to move AI agents from pil= ot to prod.
A Social Filesystem (42 min= ute read)

Files represent personal creations, so = they should live somewhere users control. File systems allow data to outliv= e the software used to create it. Other apps are able to open the same file= s to read or write data, and it's up to the users' choice on what app to us= e. This is analogous to how the AT protocol (the protocol behind Bluesky an= d other social apps) works.
ASCII characters are not pi= xels: a deep dive into ASCII rendering (42 minute read)

This article details how a developer cr= eated an image-to-ASCII renderer. The resulting renderer converts 3D models= and still images into ASCII. The renderer is interactive, and you can move= the 3D models around by dragging. The post is detailed and contains many i= nteractive examples explaining the work.
=F0=9F= =8E=81

Miscellaneous

<= /div>
TLDR is hiring a Senior Sof= tware Engineer, Applied AI ($200k-$300k, Fully Remote)

We're hiring the first engineer on TLDR= 's new Applied AI team. You'll build production AI agents and design modula= r, composable Claude Skills to let non-technical teammates create their own= AI workflows. Learn more.
Don't waste your back press= ure (4 minute read)

Agents have improved over the last year= due to structures that provide them with automated feedback and allow them= to work on longer-horizon tasks. This back pressure allows agents to ident= ify mistakes, and the feedback helps them align on tasks for much longer. D= evelopers should think about how to build back pressure into their workflow= s. Afterwards, they can loop agents until they have stamped out all of the = inconsistencies and issues.
America is slow-walking int= o a Polymarket disaster (6 minute read)

Prediction markets let people wager on = basically anything. These sites have recently boomed in popularity and are = creeping into the mainstream. They are transforming news into a form of gam= bling. It is unclear whether these sites are meaningful predictors of anyth= ing, but the markets are manipulable.
=E2=9A= =A1

Quick Links

Say goodbye to that awkward= meeting transcription bot (Sponsor)

Granola is AI that transcribes your mee= tings and enhances your notes - so you can give each call your full attenti= on. The best part? There's no meeting bot. Try Granola free<= /a>
Brex's AI Hail Mary =E2=80= =94 With CTO James Reggio (92 minute read)

This post discusses Brex's culture, how= it facilitated an aggressive shift towards a culture of AI fluency, and ho= w Brex modernized its tech stack and applied AI agents to streamline its bu= siness.
Does AI mean the demand on = labor goes up? (2 minute read)

Increased productivity means there's mo= re that you could be doing.
jQuery 4.0.0 (20 minute rea= d)

jQuery 4.0.0 is the first major version= release in almost 10 years and includes some breaking changes.
Tesla AI5 chip nears comple= tion, Elon Musk teases 9-month development cadence (2 minute read)

Tesla plans to iterate rapidly, aiming = for a nine-month design cycle.
Histomat of F/OSS: We shoul= d reclaim LLMs, not reject them (18 minute read)

Developers should define the rules LLMs= operate under instead of rejecting and blocking them.
Bring Back Ops Pride (14 mi= nute read)

Most companies are bad at ops, and this= is becoming clear as AI adds more chaos to systems already defined by chao= s.

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