TLDR

TLDR AI 2025-10-31

OpenAI security agent 🤖, ChatGPT browser architecture 🌐, Claude Code secrets 👨‍💻

Roll up your sleeves to build the next wave of agentic AI at BUILD 2025 (Sponsor)

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Deep Dives & Analysis

Canva launches its own design model, adds new AI features to the platform (4 minute read)

Big Tech Is Spending More Than Ever on AI and It's Still Not Enough (7 minute read)

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Engineering & Research

Introducing Aardvark: OpenAI's agentic security researcher (5 minute read)

ImpossibleBench: Measuring Reward Hacking in LLM Coding Agents (9 minute read)

Kimi Linear Tech Report has dropped! 🚀 (1 minute read)

How we built OWL, the new architecture behind our ChatGPT-based browser, Atlas (10 minute read)

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Miscellaneous

The Secrets of Claude Code From the Engineers Who Built It (1 hour video)

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