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The Guardrails

Deep Dive — Congress has the data center numbers, still no bill

A yearlong Senate investigation into seven of the biggest data center developers in the country concluded this week that the public case for the AI buildout does not survive the companies' own paperwork — and it landed at the exact moment Congress needs it, because the one federal bill written to make data centers pay for their own power fell three votes short of advancing in the Senate, despite passing the House 417-3.

The Stack

Open Source Radar — October 9: plugins, sandboxes, tokens

Today's open-source signal is infrastructure rather than hype: Microsoft's code sandbox reaches 1.0, Anthropic's knowledge-worker plugins keep climbing, a beloved token counter flips its default, and LocalLLaMA squeezes a usable 2B model into about 700 MB. knowledge-work-plugins (Python, ~27,900 stars, Apache-2.0) — Anthropic's repository of role-shaped plugins for Claude Cowork is the top AI repository on today's daily trending page, and the stars keep coming: roughly 2,100 more than when we…

The Guardrails

India sets a one-month clock on its AI regulation paper

India just put a date on something it has dodged for years: an actual AI regulation framework, starting with a consultation paper due within the month. Meanwhile, a Japanese lab shipped a translation model it claims costs 1/30 of the alternatives. India's government will publish an AI regulation consultation paper within a month, with AI safety and deepfakes at its center.

The Stack

Open Source Radar — October 8: The Agent Wranglers

Today's trending list is less about new frameworks and more about the awkward middle of agent development: supervising fleets of coding agents, auditing what they touch, and keeping them fed on long tasks. Four fresh projects, all verified on GitHub. cmux (Swift, ~28,000 stars) is an open-source macOS terminal built specifically for running AI coding agents — Ghostty-based, with vertical tabs, per-agent notifications, and everything exposed through a CLI and Unix socket so agents can drive…

The Stack

Open Source Radar — October 5: Skill stacks for every harness

The trending board this weekend is less about new frameworks and more about portable taste: skill packs and workflows built in one agent harness, then ported everywhere else. Four fresh picks, all verified at the source. gstack (TypeScript, 135,000+ stars) is YC president Garry Tan's Claude Code setup, opened up: 23 opinionated tools that play CEO, designer, engineering manager, release manager and QA.

The Stack

AI 101 — What is AI inference?

Every answer an AI gives you is inference: running a trained model on new input to produce an output. Training is how a model learns; inference is how it works. If training is teaching, inference is doing. Why it matters right now. Training makes the headlines — a new model, a bigger cluster, a record run — but training happens once per model, while inference happens every time anyone asks a question.

The Arena

OpenAI reopens its $200 Pro tier but halves the API credits per dollar

OpenAI is selling its heaviest consumer plan again, on cheaper terms for the company and tighter ones for the buyer — and it has finally said out loud where it thinks subscription pricing is heading. OpenAI is reopening new sign-ups for its $200-a-month ChatGPT Pro tier from September 30, but the plan now bundles roughly half the API spend it used to, and the five-hour usage cap is not coming back.

The Guardrails

Florida asks a court to halt OpenAI's model development

Two stories about who gets to decide how fast AI moves: a state attorney general asking a court to stop a model developer, and 23 researchers — including chief scientists from four frontier labs — arguing that automated AI research may soon outrun human oversight. Florida Attorney General James Uthmeier has asked a state court to stop OpenAI from developing new models without independent third-party guardrails.

The Stack

How to — check an AI-generated citation before you rely on it

An AI-drafted citation can point at a real document and still misdescribe it — that is the failure mode a link check misses. Verification means opening the source and reading the sentence your citation is attached to. This is a job you can finish in an afternoon for a normal reference list, and it is the difference between using AI as a research assistant and signing your name to something you never read. 1.

The Arena

Zhipu is down 79% from its peak as the model price war bites

The token price war finally has a scoreboard, and it is denominated in shareholder value rather than tokens. China's most-watched listed model lab is worth about a quarter of what it was in June. Zhipu's Hong Kong-listed shares (02513.HK) closed Friday at HK$633.50, about 79% below the HK$2,980 peak they reached on June 22, putting the company's market value back near HK$309 billion.

The Guardrails

FTC chair: AI agents aren't autonomous — the developer is liable

The framing arrives with almost every agent incident: the system "broke loose." The chairman of the US Federal Trade Commission spent part of Friday rejecting it. Ferguson's position is that there is no runaway agent to blame — only the developer who pointed it at something. Speaking at Reuters' Momentum AI Austin 2026 event in Austin, Texas, on September 25, FTC Chairman Andrew Ferguson said he would keep resisting "this anthropomorphizing of these tools" for as long as he holds the chair.

The Stack

Alibaba's CUDA alternative opens to outside developers

Alibaba spent its Apsara conference showing off silicon. The more consequential announcement came the day after, when it opened the software that decides whether anyone can actually use it. T-Head, Alibaba's chip subsidiary, published a fresh round of open-source releases for T-Head SAIL on September 23 — the CUDA-style stack that sits between PyTorch and its homegrown Zhenwu accelerators — one day after unveiling the Zhenwu V900, which Alibaba CEO Wu Yongming called the most compute-capable…

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