TLDR AI 2025-07-18

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Claude Code users have been hit with unexpectedly restrictive usage limits since Monday morning, particularly among heavy users of the service. There was no announcement about any change in limits, so many users have concluded that their subscription was downgraded or their usage is being inaccurately tracked. Anthropic has acknowledged the issue but declined to elaborate further. Anthropic's pricing system sets tiered limits without ever guaranteeing a set level of access, leaving users unable to plan around usage limits.

ChatGPT Agent combines Operator's web browsing with Deep Research's analysis capabilities, using its own virtual computer to handle multi-step tasks like calendar management, competitive analysis, and slideshow creation.

AI systems, including LLMs, require extensive infrastructure, data management, and operational complexity, contrary to their initial promise of simplicity. To manage costs and complexity, deterministic software and ML models become necessary for tasks like tool selection and system monitoring. This parallels earlier ML systems, revealing hidden technical debt and the complexity beneath the "AI magic box."

Hugging Face's FutureBench is a benchmark for testing AI agents on their ability to predict future events across domains like science, geopolitics, and technology.

Shopify bought 3,000 Cursor licenses with unlimited token spending after getting legal teams to default to "yes" on AI tools, then built an internal LLM proxy with MCPs connecting every data source. Non-technical sales reps now build performance auditing tools in Cursor, while a sales engineer runs his entire workflow through a dashboard that pulls real-time context from Salesforce, Slack, and GSuite without opening those apps.

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A new implementation of attention (“Power” attention) allows independent control of state size through a hyperparameter p, solving the challenge of balancing computational costs for long-context training. This mechanism outperforms standard attention on long sequences and allows custom GPU kernels that are 8.6x faster than Flash Attention at 64k context.

The Weighted Perplexity Benchmark offers a tokenizer-normalized evaluation method to compare language models effectively. It adjusts perplexity scores, considering differences in tokenization, to provide a fairer comparison across models. This approach enhances the accuracy of assessing NLP performance.

Vercel has launched the AI Cloud, a platform designed to simplify AI app development by integrating AI-first tools like AI SDK and AI Gateway for flexible and secure execution. Fluid compute optimizes AI workloads by managing idle times and bursts efficiently, reducing costs significantly. The platform also introduces Vercel BotID for securing critical routes and Vercel Sandbox for safely running untrusted code, driving the shift into the agentic era of web development.

Perplexity is quietly expanding into India to compete in the next phase of AI adoption. It is rapidly adding millions of users in the world's second-largest internet and smartphone market. Perplexity has partnered with Airtel, India's second-largest telecom operator, to offer a free 12-month Perplexity Pro subscription to all 360 million subscribers. While the company has seen major growth in the country, monetizing its large user base remains a challenge.

Meta has acquired Mark Lee and Tom Gunter from the Apple Foundation Models team. Lee was Ruoming Pang's first hire at Apple, and Gunter was a distinguished engineer at Apple with an eight-year tenure. Meta recently poached Pang with a $200 million sign-on bonus. The company has been on an aggressive hiring spree, pulling top AI talent from across the industry.

Build new functionality, create tests, and fix bugs with Claude Code, your code's new collaborator. Try it on Claude Max.

The deep research mode breaks down complex questions, gathers sources from the web, and builds structured reports, while the new Voxtral-powered voice mode enables audio-in.

After classifying ChatGPT Agent as high bio/chemical risk, OpenAI launched a program to pay $25,000 to the first researcher to submit a universal jailbreak that answers all 10 challenge questions.

FineWeb has been updated with English data from CommonCrawl snapshots from January to June 2025.

Windsurf's Wave 11 includes startups across AI-native productivity, dev tools, robotics, and consumer agents.