TLDR AI 2026-03-30

Claude Mythos leaks 🤖, last xAI cofounder exits 👋, lessons from OpenAI 💡

Black Duck Signal: Agentic AppSec built for AI-native development (Sponsor)

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Headlines & Launches

Claude Mythos (3 minute read)

Meta tests Avocado 9B, Avocado Mango Agent, and more (2 minute read)

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Deep Dives & Analysis

Function Calling Harness: From 6.75% to 100% (32 minute read)

AI's capability improvements haven't come from it getting less affordable (12 minute read)

The Capability Overhang in AI (4 minute read)

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Engineering & Research

Schedule tasks on the web (5 minute read)

What Pretext Reinforced About AI Loops (5 minute read)

lat.md (GitHub Repo)

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Miscellaneous

Things I learned at OpenAI (7 minute read)

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