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Andrej Karpathy on X (via Hacker News) ·

Karpathy: the gap in how people understand LLM capability is now a sharp funnel, and it's widening

By his napkin math, about 6B people have barely touched LLMs, 1 to 2B use free-tier chatbots, roughly 20M see agents finish weeks-long math and code projects from a prompt, and about 5,000 inside labs see swarms of agents working for weeks. He blames scale of ambition, capability peaking in verifiable domains like code, and access tiers, and warns that human review is starting to fall behind.

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DHH's agent-written Campfire rewrites show unread code leaves key trade-offs to a coin flip

Piotr Sarnacki found the agent built Rust and Elixir versions made different unprompted calls on backwards compatibility, Redis, and blocking database work, and the Rust one delivered about 1% of notifications under heavy load because of a 256 slot broadcast channel. Rerunning at a constant 100 POSTs/s, he argues dropping lagging clients beats Elixir's unbounded mailboxes, which reached 1.8GB and event delays near 180s…

KAIST's RunningTab keeps a task ledger outside the agent's context so read facts stop going missing

The environment, not the model, logs every file a terminal agent reads, tracks listed but unopened files, and blocks the first finish while requirements are still open; the authors found about one in five values an agent had already seen never made it into the deliverable. With the same Pi based harness it beat plain direct workspace agents and model kept TODO lists on Workspace Bench, TheAgentCompany, and OfficeQA Pro, lifting Gemini 3.8 Flash's Workspace Bench pass rate from 31.4% to 46.9%…

arXiv (KAIST)

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