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<div style="display: none; max-height: 0px; overflow: hidden;">Muse Spark is the first AI model in Meta's Muse family. Spark is proprietary, but some of the other models in the Muse family will be open source </div>
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<h1><strong>TLDR <span id="date">2026-04-09</span></strong></h1>
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Developer tool sprawl is real. You've got one tab for logs, another for metrics, half a dozen for cloud services, and somewhere in there is the code you're actually trying to ship.<p></p><p>🫣 Stop playing hide-and-seek with your tools. <a href="https://ad.doubleclick.net/ddm/trackclk/N572608.5847589TLDRMEDIALLC/B34062638.443026475;dc_trk_aid=629341585;dc_trk_cid=247236615;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;gdpr=${GDPR};gdpr_consent=${GDPR_CONSENT_755};gpp=${GPP_STRING_755};gpp_sid=${GPP_SID};ltd=;dc_tdv=1" rel="noopener noreferrer nofollow" target="_blank"><span>Microsoft Azure</span></a> brings together everything you need to build and run software in a single workspace.</p>
<p>Goodbye, hunting for the right dashboard. Hello, one unified view—and a faster path to innovation.</p>
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<strong>Meta's Superintelligence Lab unveils its first public model, Muse Spark (3 minute read)</strong>
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Muse Spark is the first AI model in Meta's Muse family. Spark is proprietary, but some of the other models in the Muse family will be open source. Muse Spark can get information from content posted on social media to link posts to locations or trending topics. Its standard thinking mode ranks comparably or better than competing models from leading AI labs. However, there are still performance gaps in long-horizon agentic systems and coding workflows. Meta Stark is available in the Meta AI app and website, as well as Meta's API for selected partners. It will be available to Meta's other platforms in the coming weeks.
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US nuclear startup Antres aims to achieve criticality for its reactor before the 4th of July this year. The California-headquartered startup is developing microreactors. After the demonstration of its Mark0 reactor, the company will work on achieving electricity generation for its Mark1 demonstration next year. The Department of Energy is aiming to achieve criticality in at least three advanced nuclear reactors before Independence Day this year as part of its Reactor Pilot Program.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<span>
<strong>My Quest to Solve Bitcoin's Great Mystery (68 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The identity of Bitcoin's creator, Satoshi Nakamoto, has been a mystery for 17 years. Nakamoto left behind a huge corpus of texts, and this was expanded during a recent trial where an imposter was sued for falsely claiming to be Bitcoin's creator. This article contains an investigation that leads to the conclusion that Adam Back is Satoshi Nakamoto. Back is a British cryptographer and a leading figure in the Bitcoin movement.
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<strong>Cast Adrift, Meta Employees Have No Idea Who the ‘Token Legend' Is Anymore (2 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Meta had an internal system called Claudeonmics that tracked employees' token usage. It ranked the top 250 employees and gave them badges for high rankings. Meta's staff reportedly used up about 60 trillion tokens in just 30 days, with the person in the top spot racking up 281 billion tokens. Meta has shut down the tracking system due to the data being shared externally.
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<div style="text-align: center;"><span style="font-size: 36px;">⚡</span></div></div>
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<h1><strong>Quick Links</strong></h1>
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<strong>AI adoption-only metrics are vanity metrics. Here's how to measure AI impact (Sponsor)</strong>
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Two Allstacks research reports break AI measurement into what matters: productivity patterns, quality signals, and business outcomes. Download them now for <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.allstacks.com%2Fai-roi-whitepapers%3Futm_medium=media-buy%26utm_source=linkedin%26utm_campaign=tl-dr-april-2026%23download/2/0100019d71c0c588-7fec3c76-bf41-49e2-a70c-2cac3d01e058-000000/EzapED3mvO4mtWtHVTIrBBauW2deMwS9o2r-MRJhCD8=452" rel="noopener noreferrer nofollow" target="_blank"><span>4 standards that connect AI usage to ROI.</span></a>
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<strong>How to get your company AI pilled (17 minute read)</strong>
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Ramp got 99.5% of its team active on AI tools by being obsessed over every employee embracing the new technology.
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<strong>For the first time ever, Amazon is cutting old Kindles off from the Kindle Store (2 minute read)</strong>
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Older Kindle e-readers will no longer be able to buy or download books from the Kindle store starting on May 20.
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<strong>We're missing a much bigger point on Mythos (1 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Mythos wasn't trained specifically for cybersecurity, it's just good at it because it's good at everything.
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<strong>TLDR is hiring a Senior Software Engineer, Applied AI ($250k-$350k, Fully Remote)</strong>
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TLDR's Applied AI team is tasked with making every process at TLDR legible to code, runnable by anyone, and composable into larger workflows. Join a small, fast moving team using the latest AI tools with an unlimited token budget. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2F3b21aaf8-dea5-4127-be71-602d30e5001e/1/0100019d71c0c588-7fec3c76-bf41-49e2-a70c-2cac3d01e058-000000/THC63qywssBZTRUkE6qbpbWduAc6Crisv-1UGjSdSYM=452" rel="noopener noreferrer" target="_blank"><span>Learn more</span></a>.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fpolypane.app%2Fblog%2Fthe-intl-api-the-best-browser-api-youre-not-using%2F%3Futm_source=tldrnewsletter/1/0100019d71c0c588-7fec3c76-bf41-49e2-a70c-2cac3d01e058-000000/gTfWb3P1_jZJJ0IWgYDwHRQP8tdlFYEKpzEIVlgDYdY=452">
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<strong>The Intl API: The best browser API you're not using (13 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The Intl API can handle almost all formatting requirements directly in the browser with zero kB of download and no JS bundle parsing required.
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<strong>Vera (Website)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Vera is a programming language designed for large language models that addresses common model mistakes by making everything explicit and verifiable.
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<strong>AI Adoption by the Numbers (20 minute read)</strong>
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Serving tech, legal, and healthcare buyers is clearly fertile ground right now, but there likely won't just be one 'winner' in each category.
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