• Tesla SpaceX merger 🚗, OpenAI price cuts 📉, Stripe's AI knowledge platform 👨‍💻 

    From TLDR@VERT to tldrnewsletter@synchro.net on Fri Jul 31 10:34:33 2026
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    Tesla executives have been told to prepare for a separation of the
    China =
    business ahead of a potential merger. The company's advisers
    have=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 [Buildkite] [4]

    TLDR 2026-07-31

    WHEN C=
    ODE VOLUME BECOMES AN ARCHITECTURE PROBLEM, YOU DESERVE BETTER
    CI (SPONSO=
    R) [4]=20

    Buildkite runs CI for Cursor, OpenAI, Anthropic, Airbnb, Canv=
    a, Uber,
    Meta, Mistral, xAI, Discord, Reddit, Boston Dynamics, Applied
    =
    Intuition, Poolside, Pierre, Bun and more.=C2=A0

    After setup, they orc=
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    Ou=
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    =F0=9F=93=B1=20

    BIG TECH & STARTUPS

    TESLA =
    WEIGHS SALE OF CHINA BUSINESS TO PAVE WAY FOR POTENTIAL SPACEX
    MERGER (8 =
    MINUTE READ) [6]=20

    Tesla executives have been told to prepare for a se=
    paration of the
    China business ahead of a potential merger. The company's=
    advisers
    have discussed possible options for a separation, including a s=
    pinoff,
    sale, or closure. Tesla's Chinese business is designed to be easi=
    ly
    separated from its US business because of geopolitical tensions.
    Sep=
    arating the company's China operations would address potential
    conflicts =
    that may arise from SpaceX's work as a major US defense
    contractor.=20
    =

    OPENAI CUTS PRICES FOR TWO OF ITS GPT-5.6 AI MODELS AS COMPANIES GROW=

    SENSITIVE TO COSTS (3 MINUTE READ) [7]=20

    OpenAI is reducing the pri=
    ce of Terra to $2 per million input tokens
    and $12 per million output tok=
    ens. It is also cutting the cost of Luna
    to 20 cents per million input to=
    kens and $1.20 per million output
    tokens. The company is facing pressure =
    to cater to a more
    cost-sensitive customer base. Sol's pricing remains th=
    e same.=20

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

    SCIENCE & FUTURISTIC TECHNOLOGY

    WHY =
    IS EVERYONE TRYING TO BUILD A SOLID-STATE BATTERY? (13 MINUTE
    READ) [8] =


    Solid-state batteries have several potential advantages over
    lithi=
    um-ion batteries. A solid-state battery would be lighter and
    safer than t=
    he liquid electrolyte used now. This article looks at why
    solid-state bat=
    teries have these advantages compared to conventional
    lithium-ion batteri=
    es. It also looks at how they fit into the broader
    arc of lithium battery=
    improvements.=20

    MICROSOFT'S PROJECT SILICA (20 MINUTE READ) [9]=20
    =

    Microsoft's Project Silica produced excellent research and was a
    prai=
    seworthy attempt to craft a technical solution to the extremely
    difficult=
    economics of the market for archival media. However, the
    excellent techn=
    ology will likely fail in the market. LTO tape is well
    established, has a=
    credible roadmap, and is built into the processes
    of the likely customer=
    s. It is difficult to justify spending more
    capex to reduce future opex w=
    ith non-zero interest rates.=20

    =F0=9F=92=BB=20

    PROGRAMMING, DESIGN &=
    DATA SCIENCE

    THIS YEAR'S RE:INVENT IS BUILT FOR PROBLEM-SOLVERS (SPO=
    NSOR) [10]=20

    At AWS re:Invent, 70% of the 2,200+ sessions are hands-on=
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    ers in the
    room. Register by August 25 to save $1,200. [11]=20

    STACKE=
    D PULL REQUESTS ARE NOW IN PUBLIC PREVIEW (3 MINUTE READ) [12]=20

    GitHu=
    b Stacked Pull Requests break large changes into small,
    reviewable pull r=
    equests that each represent focused layers of the
    change. They allow deve=
    lopers to independently review and check each
    pull request, then merge ev=
    erything together in one click. Stacked
    pull requests provide short, narr=
    owly scoped pull requests, allowing
    developers to introduce smaller indiv=
    idual changes while shipping
    larger features. The feature is built into G=
    itHub, so existing
    reviews, checks, and merge requirements all work out-o=
    f-the-box.=20

    MEET STRIPE'S KNOWLEDGE AI PLATFORM (12 MINUTE READ) [13]=
    =20

    Kai, Stripe's Knowledge AI Platform, helps most of Stripe's employe=
    es
    with their day-to-day work. The tool handles the data security
    requi=
    rements and specific workflows Stripe needs. It can query data
    warehouses=
    , research accounts before sales calls, triage incidents,
    model revenue s=
    cenarios, and prepare compliance reviews. Most Kai
    sessions require many =
    turns.=20

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

    MISCELLANEOUS

    TLDR IS HIRING A CURATO=
    R FOR TLDR HARDWARE! (TLDR CURATOR, ~3
    HRS/WEEK)=20

    500,000 people ha=
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    If you work in hardware and=
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    CITADEL BUYS SITUATIONAL AWARENESS'S STOCK PORTFOLIO AFTER BIG L=
    OSSES
    IN AI (7 MINUTE READ) [14]=20

    Situational Awareness has sold th=
    e bulk of its stock portfolio to
    Citadel after suffering deep losses. The=
    firm had amassed over $20
    billion in assets, making it one of the fastes=
    t-growing firms in
    years. It encountered funding issues due to margin-cal=
    l demands from
    its lenders. Citadel, one of the world's largest hedge-fun=
    d firms, has
    a long record of acquiring assets from forced sellers.=20
    =

    CHROME MAY GET FASTER UPDATES WITH NO RESTART REQUIRED (2 MINUTE
    READ=
    ) [15]=20

    Chrome 149 and Chrome 150 shipped with a total of 1,072 bug f=
    ixes,
    more than the previous 23 releases combined. AI is changing securit=
    y
    analysis and enabling better flaw detection. Google is now piloting a=

    system that would update Chrome twice per week. The company is working=

    on ways to allow patches to be installed without restarting the
    browse=
    r.=20

    =E2=9A=A1=20

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    THE AI AESTHETIC (=
    3 MINUTE READ) [18]=20

    Every era brings its own designs - some fade, bu=
    t others get
    incorporated into deeper parts of existing software interact=
    ion
    paradigms.=20

    ANTHROPIC AI MODELS HACKED THREE COMPANIES DURING T=
    ESTS (3 MINUTE
    READ) [19]=20

    Anthropic says it discovered that its mo=
    dels hacked three
    unsuspecting companies after hearing about the recent i=
    ncident where
    OpenAI's model autonomously hacked Hugging Face to access d=
    ata.=20

    MICROSOFT'S XBOX CHIEF LAYS OUT PLAN TO PASS RIVALS ON MARGIN B=
    Y 2030
    IN MEMO TO EMPLOYEES (4 MINUTE READ) [20]=20

    Xbox CEO Asha Sha=
    rma, a former executive at Instacart and Meta, has
    appointed new leaders,=
    lowered Game Pass subscription prices, and
    announced layoffs and divesti=
    tures of four development studios since
    taking over from Phil Spencer. =


    AMAZON'S ZOOX TO BEGIN CHARGING FOR RIDES IN LAS VEGAS AFTER CLEARIN=
    G
    NHTSA HURDLE (4 MINUTE READ) [21]=20

    Zoox has received a temporary =
    exemption from US regulators that
    allows it to deploy up to 2,500 vehicle=
    s annually for two years.=20

    META SAYS AI IS MAKING IT EASIER TO BUILD =
    NEW APPS =E2=80=94 AND MORE ARE
    COMING (3 MINUTE READ) [22]=20

    AI is =
    helping Meta's teams speed up product development, allowing the
    company t=
    o test new ideas at a quicker pace.=20

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    <div style=3D"display: none; max-height: 0px; overflow: hidden;">Tesla exec= utives have been told to prepare for a separation of the China business ahe=
    ad of a potential merger. The company&#039;s advisers have&nbsp;=E2=80=8C&n= bsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&n= bsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&n= bsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&n= bsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&n= bsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&n= bsp;&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2= =80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2= =80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2= =80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2= =80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2=80=8C&nbsp;=E2= =80=8C&nbsp;=E2=80=8C&nbsp;</div>

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    <div style=3D"text-align: center;">

    <h1><strong>TLDR <span id=3D"date">2026-07-31</span></strong></h1>
    </div>
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    <table style=3D"table-layout: fixed; width:100%;" width=3D"100%"><tbody><tr=
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    <a href=3D"https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fbuildkite.com%2Fpricing%3Futm_source=3Dtldrtech%26utm_m= edium=3Dnewsletter_header%26utm_campaign=3DPrimary05152026%26utm_content=3D= header_when_code_volume/2/0100019fb7bd7240-12175bb9-7f30-4503-b541-f18564a5= 00c4-000000/UfacdfCqn9KdKqS43CB8PSRIpDCvfHMEG2tb8gHrgfM=3D452">
    <span>
    <strong>When code volume becomes an=
    architecture problem, you deserve better CI (Sponsor)</strong>
    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Buildkite runs CI for Cursor, OpenAI, A= nthropic, Airbnb, Canva, Uber, Meta, Mistral, xAI, Discord, Reddit, Boston = Dynamics, Applied Intuition, Poolside, Pierre, Bun and more.&nbsp;<p></p><p= >After setup, they orchestrated build systems quiet enough that their devs = rarely need to look at it. And from there, we kinda just... get out of the = way.&nbsp;</p><p>Our CI primitives give you the building blocks to regain c= ontrol over your builds, without compromise.&nbsp;</p><p>Quietly powering s= oftware used by 1B+ people daily, since 2013.</p><p>Start with our 30-day t= rial and get full access to the platform with a real support engineer on st= andby. <a href=3D"https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fbuild= kite.com%2Fpricing%2F%3Fbk_pid=3D20260522-TLD-PRI-primary-trial%26utm_sourc= e=3Dtldr%26utm_medium=3Dnewsletter%26utm_campaign=3Dtldr-2026-05-22%26utm_c= ontent=3Dprimary-trial_cta_building_cta_kick_tires%26utm_id=3D20260522-TLD-= PRI-primary-trial/1/0100019fb7bd7240-12175bb9-7f30-4503-b541-f18564a500c4-0= 00000/-Z4yTqjA5b_9Pl-e-8QppUTlrVR_zQ-eYDmQjFfA8hw=3D452" rel=3D"noopener no= referrer nofollow" target=3D"_blank"><span><strong>Kick the tires =E2=86=92= </strong></span></a>



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    <h1><strong>Big Tech &amp; 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=

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    <span>
    <strong>Tesla Weighs Sale of China = Business to Pave Way for Potential SpaceX Merger (8 minute read)</strong>
    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Tesla executives have been told to prep= are for a separation of the China business ahead of a potential merger. The=
    company's advisers have discussed possible options for a separation, inclu= ding a spinoff, sale, or closure. Tesla's Chinese business is designed to b=
    e easily separated from its US business because of geopolitical tensions. S= eparating the company's China operations would address potential conflicts = that may arise from SpaceX's work as a major US defense contractor.
    </span>
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    <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=

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    <span>
    <strong>OpenAI cuts prices for two =
    of its GPT-5.6 AI models as companies grow sensitive to costs (3 minute rea= d)</strong>
    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    OpenAI is reducing the price of Terra t=
    o $2 per million input tokens and $12 per million output tokens. It is also=
    cutting the cost of Luna to 20 cents per million input tokens and $1.20 pe=
    r million output tokens. The company is facing pressure to cater to a more = cost-sensitive customer base. Sol's pricing remains the same.
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    <div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F= =9A=80</span></div>
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    ;" valign=3D"top">

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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Solid-state batteries have several pote= ntial advantages over lithium-ion batteries. A solid-state battery would be=
    lighter and safer than the liquid electrolyte used now. This article looks=
    at why solid-state batteries have these advantages compared to conventiona=
    l lithium-ion batteries. It also looks at how they fit into the broader arc=
    of lithium battery improvements.
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    <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=

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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Microsoft's Project Silica produced exc= ellent research and was a praiseworthy attempt to craft a technical solutio=
    n to the extremely difficult economics of the market for archival media. Ho= wever, the excellent technology will likely fail in the market. LTO tape is=
    well established, has a credible roadmap, and is built into the processes =
    of the likely customers. It is difficult to justify spending more capex to = reduce future opex with non-zero interest rates.
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    <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=
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    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    At AWS re:Invent, 70% of the 2,200+ ses= sions are hands-on: workshops, chalk talks, and code talks with service eng= ineers and partners in the room. <a href=3D"https://tracking.tldrnewsletter= .com/CL0/https:%2F%2Faws.amazon.com%2Fevents%2Freinvent%2F%3Ftrk=3D44d21341= -3448-4965-a11e-cab2cc52b93a%26sc_channel=3Del/1/0100019fb7bd7240-12175bb9-= 7f30-4503-b541-f18564a500c4-000000/I7y79RjAH9UvSwqRDm2qhaVXtt1PspNFNvSbO-RB= WpI=3D452" rel=3D"noopener noreferrer nofollow" target=3D"_blank"><span>Reg= ister by August 25 to save $1,200.</span></a>
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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    GitHub Stacked Pull Requests break larg=
    e changes into small, reviewable pull requests that each represent focused = layers of the change. They allow developers to independently review and che=
    ck each pull request, then merge everything together in one click. Stacked = pull requests provide short, narrowly scoped pull requests, allowing develo= pers to introduce smaller individual changes while shipping larger features=
    . The feature is built into GitHub, so existing reviews, checks, and merge = requirements all work out-of-the-box.
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    <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=

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    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Kai, Stripe's Knowledge AI Platform, he= lps most of Stripe's employees with their day-to-day work. The tool handles=
    the data security requirements and specific workflows Stripe needs. It can=
    query data warehouses, research accounts before sales calls, triage incide= nts, model revenue scenarios, and prepare compliance reviews. Most Kai sess= ions require many turns.
    </span>
    </span>
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    </td></tr></tbody></table>



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    <div style=3D"text-align: center;"><strong><h1>Miscellaneous</h1></strong><= /div>
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    <strong>Citadel Buys Situational Aw= areness's Stock Portfolio After Big Losses in AI (7 minute read)</strong>
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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Situational Awareness has sold the bulk=
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    d amassed over $20 billion in assets, making it one of the fastest-growing = firms in years. It encountered funding issues due to margin-call demands fr=
    om its lenders. Citadel, one of the world's largest hedge-fund firms, has a=
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    <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=

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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Chrome 149 and Chrome 150 shipped with =
    a total of 1,072 bug fixes, more than the previous 23 releases combined. AI=
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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Every era brings its own designs - some=
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    <strong>Anthropic AI Models Hacked = Three Companies During Tests (3 minute read)</strong>
    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Anthropic says it discovered that its m= odels hacked three unsuspecting companies after hearing about the recent in= cident where OpenAI's model autonomously hacked Hugging Face to access data=
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    e at Instacart and Meta, has appointed new leaders, lowered Game Pass subsc= ription prices, and announced layoffs and divestitures of four development = studios since taking over from Phil Spencer.
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    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    Zoox has received a temporary exemption=
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    <strong>Meta says AI is making it e= asier to build new apps =E2=80=94 and more are coming (3 minute read)</stro=

    </span>



    <span style=3D"font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, V= erdana, sans-serif;">
    AI is helping Meta's teams speed up pro= duct development, allowing the company to test new ideas at a quicker pace.
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