The Daily Index — Thursday, September 25, 2025

HEADLINES & LAUNCHES

TLDR AI

META'S OPEN LLM FOR CODE AND WORLD MODELING

Meta has released CWM, a 32B decoder-only LLM trained on code execution traces and reasoning tasks to explore world models in code generation.

ai.meta.com · 5 min

TLDR AI

COHERE'S $7B VALUATION

Cohere secured another $100 million in funding, raising its valuation to $7 billion, and announced a strategic partnership with AMD.

techcrunch.com · 2 min

TLDR AI

UNLOCKING A MILLION TIMES MORE DATA FOR AI

Every major leap forward in AI progress involved a large increase in data to support it. While AI leaders have warned that we have reached 'peak data', there is still a lot of unused data available. Most AI systems are trained on a few hundred terabytes of data - the world has digitized an estimated up to 200 zettabytes of data. The data exists, but it isn't being used for training, which is an access problem rather than a scarcity problem. The Attribution-Based Control is a potential framework for expanding access to the world's digital data while preserving ownership rights. It offers an approach to addressing the technical, legal, and economic barriers that prevent access to most of the world's data by enabling data owners to maintain control while contributing to AI development.

ifp.org · 22 min

TLDR AI

OPENAI SHOWS US THE MONEY

Nvidia will invest as much as $100 billion in cash into OpenAI to support new data centers. As long as OpenAI depends on Nvidia, it may be reluctant to speak about AI risk, as it may endanger its chip allocations. While Nvidia wants to make and sell as many chips as possible to the widest variety of customers, OpenAI has a strong interest in the US beating China across the board and keeping things under control. Nvidia may do better short-term by selling to China, but this will hurt other investments, and long-term, the model of compute-intensive, top-quality closed models is better for it anyway.

thezvi.substack.com · 15 min

TLDR AI

HUMAN-AI SYNERGY

Across 600 participants, researchers found that people who better understand others' mental states performed significantly better with AI assistance. The findings suggest that successful human-AI collaboration depends less on technical prowess and more on social intelligence.

osf.io · 18 min

TLDR AI

CROSS-AGENT PRIVILEGE ESCALATION: WHEN AGENTS FREE EACH OTHER

Cross-Agent Privilege Escalation is when multiple coding agents operating on the same system are tricked into modifying each other's configurations to escalate their privileges. While some agents now lock down the ability to modify their own settings, this doesn't work when multiple agents are run in the same environment. The possibility of the exploit highlights the need for better isolation strategies and stronger secure defaults in agent tooling. Developers should get into the habit of running these agents in locked-down containers.

simonwillison.net · 2 min

TLDR AI

INTRODUCING THE DATA COMMONS MODEL CONTEXT PROTOCOL (MCP) SERVER: STREAMLINING PUBLIC DATA ACCESS FOR AI DEVELOPERS

Summary unavailable

developers.googleblog.com · 5 min

TLDR AI

REINFORCEMENT LEARNING ON PRETRAINING DATA

RLPT introduces a new training paradigm where language models use reinforcement learning directly on pretraining data, removing the need for human-annotated rewards.

arxiv.org · 16 min

TLDR AI

META POACHES OPENAI SCIENTIST TO HELP LEAD AI LAB

Mark Zuckerberg has poached Yang Song, a high-ranking researcher from OpenAI, to be the lead research principal of Meta Superintelligence Labs. Song had been at OpenAI since 2022, where his research focused on improving models' ability to process large, complex datasets across different modalities. He developed a breakthrough technique that helped inform the development of the DALL-E 2 image generation model while still a graduate student at Stanford University.

wired.com · 3 min

TLDR AI

NEON, THE NO. 2 SOCIAL APP ON THE APPLE APP STORE, PAYS USERS TO RECORD THEIR PHONE CALLS AND SELLS DATA TO AI FIRMS

Neon Mobile pays users for their audio conversations, selling the data to AI companies. It pays 30 cents per minute when users call other Neon users and up to $30 per day maximum for making calls to anyone else. Only Neon users are recorded during these calls. The app also pays for referrals. The app's privacy policy includes a very broad license to its user data that leaves plenty more room for the company to do with users' data than it claims. While the app raises many red flags, it may be technically legal.

techcrunch.com · 9 min

TLDR AI

MICROSOFT INVESTS $30 BILLION IN UK TO POWER AI FUTURE

Microsoft is investing $30 billion to enhance AI infrastructure in the UK from 2025 to 2028, including a major supercomputer project with Nscale.

blogs.microsoft.com · 5 min

TLDR AI

MOVIE STUDIO LIONSGATE IS STRUGGLING TO MAKE AI-GENERATED FILMS WITH RUNWAY

Lionsgate doesn't have enough content for Runway's AI to produce quality content - even Disney's catalog is too small to create a model.

petapixel.com · 3 min

TLDR AI

INTRODUCING GAMMA 3.0: THE NEW ERA OF HUMAN COMMUNICATION

Gamma is an AI-powered design platform that transforms raw ideas into compelling visual presentations.

links.tldrnewsletter.com · 4 min