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<div style="display: none; max-height: 0px; overflow: hidden;">Elon Musk became the world's first trillionaire on Friday after shares of SpaceX rose 20% from their initial public offering price of $135 </div>
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<h1><strong>TLDR <span id="date">2026-06-15</span></strong></h1>
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<strong>Anthropic shuts down Fable, Mythos models following Trump admin directive (2 minute read)</strong>
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Anthropic has shut off access to its Mythos 5 and Fable 5 models. The US Commerce Department has issued a directive that subjects the new models to export controls restricting their use anywhere outside of the US. Anthropic says the only way to ensure compliance is to completely cut access until the issue is resolved. Access to other Anthropic models is not affected.
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<strong>Elon Musk Becomes the World's First Trillionaire (9 minute read)</strong>
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Elon Musk became the world's first trillionaire on Friday after shares of SpaceX rose 20% from their initial public offering price of $135. Musk was already the world's richest person, claiming the title from Jeff Bezos in 2021 with a net worth of over $185 billion. His worth is now equivalent to more than 3% of the US gross domestic product. It is five million times as large as that of the typical US family.
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<strong>Nuclear clocks tick for the first time (3 minute read)</strong>
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Chinese and European research teams working independently have both achieved building a working nuclear clock. Both exploit the nucleus of a thorium-229 atom to keep time with extraordinary precision. Building a working nuclear clock has so far proven to be challenging, as the required laser light sits in a part of the spectrum that is technically challenging to generate and control. The Chinese team used a more powerful laser, while the European team worked with a crystal containing a higher concentration of the thorium nuclei.
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<strong>New CRISPR Technique Selectively Shreds Cancer Cells, Including “Undruggable” Cancers (5 minute read)</strong>
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Researchers have created a new CRISPR-based approach that can selectively destroy cells carrying a mutation in a tumor suppressor found in nearly half of cancers and up to 70% to 90% of cases of some of the most difficult-to-treat cancers. The new approach harnesses CRISPR's ability to find cells with specific mutations and uses its cutting ability to selectively destroy those cells. Making treatments for different cancers using this technique is faster than making a small molecule drug or antibody therapy. Delivery remains a challenge, but a combination of therapies may prove useful for some cancers.
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Think of this <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fsentry.io%2Fresources%2F201-series%2F%3Futm_source=tldr%26utm_medium=paid-community%26utm_campaign=brand-fy27q2-201workshop%26utm_content=newsletter-secondary-201-workshop-register/2/0100019ecaf3a0c0-eafc3d17-4b42-4078-a860-987c3e3f26a4-000000/cvU_gCB-0otG9GmJPWNq7EJde1hAVzivHVmxnrXv7s4=452" rel="noopener noreferrer nofollow" target="_blank"><span>three-part workshop series</span></a> as Sentry 201. Session 1 covers integrations & sampling, Session 2 tackles debugging with traces, logs, & metrics, and Session 3 is on agentic workflows using the Sentry MCP, CLI, and Seer. Tap into all the value Sentry offers starting June 24. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fsentry.io%2Fresources%2F201-series%2F%3Futm_source=tldr%26utm_medium=paid-community%26utm_campaign=brand-fy27q2-201workshop%26utm_content=newsletter-secondary-201-workshop-register/3/0100019ecaf3a0c0-eafc3d17-4b42-4078-a860-987c3e3f26a4-000000/rPCxwHy_1Qj_TXEO8cxZ0MZpN_g1gE-566HUwUlN6xs=452" rel="noopener noreferrer nofollow" target="_blank"><span>Save your spot</span></a>
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<strong>Ponytail (GitHub Repo)</strong>
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Ponytail is an AI senior developer. It produces efficient code at low cost and at fast speeds. Ponytail works with every model. Examples and benchmark comparisons are available in the repository.
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<strong>The Log Is the Agent (11 minute read)</strong>
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While the model, runtime, and loop matter, those things aren't the agent. The agent is the history of events that make up its data. This log allows agents to be reconstructed correctly and resumed. The concept of agents as logs unlocks a whole set of capabilities that make even advanced agent use cases easier to reason about and build into everyday applications.
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<strong>TLDR is hiring a Senior PMM ($180k-$225k base + $40-50k annual target bonus, Fully Remote)</strong>
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We're hiring a senior PMM to own product marketing at TLDR. You'll define our positioning, build out sales enablement, and lead every launch. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2F4028e55e-b0f0-433c-8f61-8886d7e07c29/1/0100019ecaf3a0c0-eafc3d17-4b42-4078-a860-987c3e3f26a4-000000/MiRosavmJFsGXVbfGiqqPF7LA1EB8H0_plV4rKzwBrU=452" rel="noopener noreferrer" target="_blank"><span>Learn more</span></a>.
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<strong>Apple's New Siri Is Just Good Enough to Ease Its AI Crisis (13 minute read)</strong>
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Apple's Siri now works the way it's supposed to. The latest update doesn't do anything revolutionary or innovative, but it shows how Apple has finally entered the modern AI market. The new Siri is roughly competitive with where the leading chatbots were about six months ago. Apple's preinstalled functionality is now competent enough that many users won't need competing AI services.
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