TLDR 2026-07-17

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One of SpaceXAI's goals is to get Grok to catch up to Anthropic's Claude. The company recently released a new coding tool and beefed up its sales team, but it is still running behind its competitors in many measures. It has been in a state of chaos over the past few months, making it difficult for outsiders to see where Elon Musk imagines the company heading. Many insiders considered the company unprepared for the scrutiny that comes with being a company, and now that it is public, SpaceXAI has less room to maneuver.

Google has months behind schedule on delivering Gemini 3.5 Pro. The company has been taking its time trying to improve its capabilities, particularly in coding. The delay has frustrated Google engineers, AI researchers, and managers, many of whom are concerned that the company risks losing an edge. The model is currently being tested with partners, and Google is productively engaged with the US government on model testing and broader frameworks.

Researchers restored hand movement and a sense of touch to a man paralyzed from the chest down using technology that partly rewired his nervous system. The 'double neural bypass' system combines a brain-computer interface, AI, and electrical stimulation of the spinal cord and brain to produce long-lasting changes. Many of the improvements were still present more than two years after treatment. The researchers are now planning larger trials and are testing the system for other conditions, including stroke.

The FDA has approved a pill that can lower cholesterol levels far beyond what can be achieved with statins. Made by Merck, enlicitide works by inhibiting a protein known as PCSK9. Its list price is $315 for a 30-day supply, and it will be available in a few weeks. Similar injectable drugs have been shown to reduce the incidence of heart attacks, strokes, and cardiovascular deaths by 20% in high-risk people - Merck is now conducting studies to see if its pill has the same effect.

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Bun was rewritten from Zig to Rust using Fable. A full rewrite would usually take too long, but the AI tool allowed it to be completed in 11 days. The project cost $165,000 with API pricing, consuming 5.9 billion uncached input tokens, 690 million output tokens, and 72 billion cached input token reads. The rewrite demonstrates how AI can now be cost-effective for codebase migrations when projects are well-engineered.

The world is short on people who can find the right problem, tell whether the machine solved it, and finish past where the machine stopped. Agents scale infinitely while humans don't. Anything gradable by someone else is getting automated. Seek taste and judgment on purpose, as they will stay durable and ungradable.

Microsoft CEO Satya Nadella has criticized Anthropic's limits on requests to Fable. He says the tool is too editorially controlled, and that its refusal to complete concern tasks doesn't make sense. The criticism is aimed at a valued Microsoft partner and client. Microsoft said in November that it was making a $5 billion investment in Anthropic, and Anthropic has agreed to spend $30 billion on Microsoft's Azure cloud.

Chinese leader Xi Jinping endorsed the building of open-source AI models during a speech that implicitly criticized US moves to protect its lead in AI semiconductors and models. He cast China as a champion of openness and equality, saying that the country should oppose overstretching the concept of national security in the field of AI. The US and China have taken different approaches to building AI models, with Silicon Valley building largely proprietary models while China has released many open-source models. Chinese AI executives have expressed concern that they will struggle to close the gap with the US due to restrictions on access to the world's best chips and chip-making equipment.

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Visa's new platform lets financial firms issue, move, and manage stablecoins.

Cosmos 3 Edge is a world model designed to help systems perceive and navigate physical environments in real time.

Linus Torvalds supports using AI tools to improve the long-standing open source project.

Dave Brown, one of the most senior executives at AWS, will report to Meta's head of infrastructure and focus on the firm's data center build-out.

TSMC's total commitment to its fast-growing footprint in Arizona is now $265 billion.

Block's role in the proposed Stripe/Advent/Block deal to buy PayPal hasn't received much attention in the press even though it is presumably a big part of the deal.