2026-W39

lovable acquires sutro, maker of slang, as

Thursday, September 24, 2026Sent to 567 subscribers

This Week in AI

Lovable Acquires Sutro, Maker of SLang, as Founder Halgas Joins to Lead Technical Evangelism

Lovable announced on September 18, 2026 that it acquired Sutro, the company behind the SLang programming language and a zero-infra backend platform. Sutro founder Tomas Halgas and three engineers – Max Gfeller, Tony Zhan, and Hirad Arshadi – are joining Lovable, with Halgas set to lead technical evangelism. Financial terms were not disclosed. The deal follows Lovable's $400 million Series C and a Salesforce partnership.

Developer

LangChain's Paid Media Agent Took Paid Ads From 0 to 20% of Marketing Pipeline in Six Months

LangChain published a case study on its internal Paid Media Agent, which it says took paid media from 0 to 20% of marketing pipeline in six months, cut cost per qualified lead 30% from June to August and saved about $5K per month by moving analysis in-house. The long-running Slack agent combines ad-platform and warehouse data, posts weekly reports and PDFs, and proposes keywords, targeting and ad copy. LangChain open-sourced the agent and will host a webinar on September 23.

AI Models

42 Mathematicians Urge Royal Society to Warn Government and Media About AI Existential Risk

Forty-two mathematical fellows, including Fields Medal winners Martin Hairer, Peter Scholze, and Wendelin Werner, have signed an open letter urging the Royal Society to warn the UK government and media about existential risks from advanced AI. The letter follows recent breakthroughs in which leading models solved open research problems, including a Millennium Problem. None of the signatories are affiliated with AI companies. The group warns that AI labs' estimates of existential risk above ten percent must not be dismissed as hype, and that by the time the situation becomes obvious to the public, it may be too late to act.

Developer

Steve Yegge Shuts Down Gas Town After Failing to Build Anything Else With It

Steve Yegge shut down Gas Town, his ultra-vibed coding agent orchestrator, after admitting he never built anything else with it despite heavy subscription spend. Databricks reported a 60% coding spend increase after rolling out GPT-6 Astra to 3,500 engineers, OpenAI published a misalignment disclosure framework with six case reports, and Xiaomi ran MiMo-V2.6 RL training in public with live telemetry.

Developer

Anthropic Opens Beta of Claude Code Project Experience to Select Pro and Max Subscribers

Anthropic has opened a beta of a new project experience for Claude Code, its agentic coding tool, letting Claude scope, delegate, coordinate, review, and assemble work across multiple sessions on its own. Announced September 17, 2026, the update reaches only select Claude Pro and Max subscribers at first, with access widening over the coming week and other plans to follow. Existing projects keep working as before and will be upgraded as the rollout expands.

Industry

Three AI CEOs Urge Slowdown on Frontier Models as Critics Point to Profits, Not Safety

Dario Amodei, Sam Altman and Elon Musk spent a weekend urging the AI industry to slow frontier model development, citing safety. Critics note the same companies face hacking incidents, accounting that flatters results, and productivity gains that have not appeared in corporate earnings, arguing the slowdown push protects market position rather than the public.

Research

Anonymized Records Let Medical AI Recognize Returning Patients, Study Finds

A Germany-UK study finds anonymized patient records in medical datasets can teach AI models to recognize returning patients, shifting predictions toward their old health state and sometimes causing missed diagnoses. Testing four datasets, researchers found prediction changes exceeding 70 percentage points, with effects persisting over 25 years. Differential privacy is evaluated as a safeguard.

Product Launch

Meta Puts Muse on the Mac, Ten Days After Its US Debut

Meta released a Mac app for its Muse personal AI agent on September 18, 2026, ten days after the product's US debut on iOS, Android, and muse.ai. The desktop build organizes files, fills forms, and pulls from Messages, Calendar, and Notes, with cross-device continuity via WhatsApp. Muse runs on Muse Spark inside an isolated Muse Secure VM, with Sentinel approving internet access, Link by Stripe payments, and a planned Muse Confidential VM later in 2026.

Developer

LangChain's Paid Media Agent Cuts Weekly Reporting Cost 40x and Runtime 13x

LangChain published a blog post on September 13, 2026 detailing its internal Paid Media Agent, which cut the cost of its weekly reporting workflow by 40x and made it 13x faster. The open-sourced agent runs in Slack every Monday, combining ad-platform data with warehouse pipeline data, and moved calculations from the model into deterministic Python code. Runtime dropped from 18 minutes to 85 seconds.

AI Models

Mistral AI to Power Firefox Smart Window as Mozilla Extends Its AI Push to France and North America

Mozilla announced on September 16, 2026 that its Firefox Smart Window AI assistant is now powered by Mistral models, launching in beta across France and North America with the UK and Germany to follow later in 2026. The partnership pairs two open source advocates, with Mozilla citing open distribution and user control while Mistral gains consumer reach beyond its enterprise base. Mozilla says conversations are not saved on its servers by default and partners agree to zero data retention.

Industry

Apple Reported to Be Building Its Own AI Servers, Newsletter Headline Says

A Techpresso newsletter headline dated Sep 17, 2026 reports that Apple is building its own AI servers, but the digest offers no supporting details or evidence beyond the claim. The same edition covers OpenAI safety incidents, Snap AR glasses, Anthropic's Cowork integration into Claude, and a Huawei AI chip, plus a writer's AI workflow, promotions, and the anniversary of Linux kernel 0.01.

Industry

Instagram Post Exposes Left's AI Rift as Sanders Pushes Safety and DSA Organizers Fight Data Centers

An NYC DSA Instagram post criticizing AI alarmism has exposed a widening rift on the American left over artificial intelligence. The post, which drew over 25,000 likes, landed days after Bernie Sanders-backed candidates called for regulating AI to prevent existential threats. DSA organizers argue the doom framing distracts from present harms like data centers, surveillance, and corporate power, while Sanders has become the left's most prominent voice on AI safety.

Developer

LangChain Open-Sources the Paid Media Agent It Uses to Run Its Own Ads

LangChain has open-sourced the internal Paid Media Agent it uses to run its own advertising, detailing the build in a September 13, 2026 blog post. The Slack-based agent combines ad-platform data with warehouse lead and pipeline data weekly, posting summaries and branded PDFs. LangChain reports paid media grew from 0 to 20% of marketing pipeline in six months, a 30% drop in cost per qualified lead from June to August, and roughly $5K per month saved by replacing agency analysis.

AI Policy and Governance

US and Chinese Experts Urge Shared Rules to Keep AI Out of Nuclear Launch Decisions

Experts from the Brookings Institution and Fudan University have proposed shared US-China rules barring AI systems from autonomously launching nuclear weapons or attacking nuclear command systems. The recommendations, published ahead of a September 24 Trump-Xi meeting, include a hotline for AI incidents modeled on Cold War direct lines. They build on a November 2024 Biden-Xi understanding, though binding mechanisms remain absent and skeptics question whether crisis communication channels would be answered.

Product Launch

Bolt.new Opens Forge, Trading Anonymized Coding Sessions for a Trillion-Parameter Open Model

Bolt.new launched Bolt Forge on September 17, 2026, a research preview giving individual Pro subscribers 50X more usage on frontier open-source models in exchange for opt-in sharing of anonymized coding sessions. The data goes to Arcee AI, which will use it to train a trillion-parameter-class open-weight model released publicly for download. The preview runs from September 14 to October 14, 2026, with Teams and Enterprise workspaces excluded from all data collection.