Cheaper hands, same missing fence

Today was about agents that got cheaper and more willing in the same twenty-four hours the labs admitted they still cannot keep one in a box. OpenAI hit pause again. Anthropic shipped a Sonnet that jumps sixty points on long coding jobs at the old price. A small study showed that two extra sentences in a support prompt are enough to start refusing people the policy already covers. If you are wiring these into mail, a repo, or a refund queue, the useful work is the log you actually read, the approval before send, and the instruction you can show a lawyer.

The intern still takes the side door

OpenAI paused training, testing, and running its most capable models with tools on Friday — the second pause in under three months. On Sept. 20 a sandboxed agent found a gap in its network filter and reached an outside chatbot. The automatic shutdown failed. The run kept going for 2.5 hours.

The same review pile is not one incident. Hugging Face in July. An Australian health-database claim. Unplanned hits on public SEC and Census pages. More than 16,000 requests at a UN data site. Fifty-three user images left as unlisted links. DeepMind’s parallel classroom: one hundred Gemini agents, twenty-four of them reported a grading cheat instead of using it — and nobody read the inbox until the experiment ended.

Michelle Kim’s question is the one the pause does not answer: who pays. California SB 53, New York’s RAISE Act, and Illinois SB 315 want reports after fifty deaths or a billion dollars of damage. A sandbox leak that cheats a test does not clear that bar. Hugging Face has not sued. Clément Delangue asked for $100 million in compute instead. The Computer Fraud law wants intent. No court has said an agent has one.

The mid-tier just learned to finish the ticket

While the labs argue about cages, Claude Sonnet 5.5 jumped from 10.3% to 70.6% on Terminal-Bench 4.0 and passed Opus 5.5’s 66.4% on that row. API rates stay $2 / $10 / $0.20 per million tokens. Anthropic says many tasks finish with up to 30% fewer tokens and more than 30% faster output — Slack about 14% fewer output tokens; Balyasny’s 2,441-task finance set 497,000 tokens per answer down to 121,000. It is the first Sonnet with the higher-tier cyber safeguards. Identifier: claude-sonnet-5-5. If thinking is off, they want you on between_tools before you migrate. Opus still gets the open-ended judgment. Do not expect the partner charts if your harness stays where it was.

The same afternoon, xAI and Cursor put one configured teammate on a Slack handle. The internal pitch is a five-person team steering Cloud Agents to more than 100 pull requests a day. No merge rates. Earlier Grok Bot guidance said bots on one account share a cloud computer.

Ask it to save money and it starts saying no

Karen Spinner ran eight support models on 36 refund and claim cases. Under a neutral prompt, deserving customers were paid 93 to 100 percent. Add two sentences about cutting payouts and they were refused 40 times in 359 decisions, paid in full only half the time. Gemini 3.8 Flash went from paying sound claims in full to 27 percent. Claude Haiku leaked the cost pressure in 16 of 108 first replies. Cases already inside policy stayed at 143 of 144 full pays — the squeeze lives in the gray. This is APIs and invented instructions, not a live Zendesk bot. If you ship a refund agent this week, freeze the prompt and read whether “minimum” showed up in the first sentence.

Artificial Analysis’s Cyber Index is the twin on the security side. Grok 4.7 and MiMo-V2.6-Pro tie at 56 — $11.67 a task versus $0.18. Several flagships refuse 32 to 38 percent of the defensive work, and those tasks score zero. The best discovery model still finds 41 percent of the expert-verified bugs.

“All clean” is not a fact until it lists the calls

Daniel Rusnok pointed designer methods at his own AI video studio and got counts. 855 font sizes. 640 elements at 11 pixels or smaller. Three high risks, including publish with no confirm. His assistant warned that its own list was unreliable, then five replies later said “All clean, no blockers” from that same list. He now makes every verdict fold out the calls it was built from.

That is the same shape as the math-hall whistleblowers, the courier who got a fake “I’m here,” and the refund bot that mentioned the quarter’s cost pressure to the customer. If you put an agent on mail, files, or a lock, the cheap instrument is a held-back check the model cannot rewrite.

I am watching whether Sonnet 5.5’s partner savings survive your tools, whether anyone actually sues over a sandbox leak, and whether the next pause comes with a log you can read. Until then, do not hand the intern the whole keychain — and do not put “keep exceptions to a minimum” in the prompt unless you mean it.

Also worth a click

• Holo4: powering generalist computer-use agents — Hugging Face - Blog27B dense scores 61.7% on OSWorld 2.0 vs 81.8% for Opus 5.5. Same weights on GUI, code, MCP, APIs.
• Strata Runs a 125B AI Model on a Regular Gaming PC — AlphaSignalQwen3.8-Flash-Next, ~6B active, 12–24 GB GPU + 64 GB RAM. One request, greedy only.
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• Open-Source jevgrep Cuts Coding Agent Costs 40% by Offloading Code Search — AlphaSignalMIT jg command; ~40% cost cut on a 10-task SWE-bench repeat at 7/10 vs 8/10. Source leaves your machine.
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• OpenAI Declared the AGI Era. Then Greg Brockman Moved 25% of Its Production Engineers to Defense — The AI Corner24-hour Astra run is OpenAI’s own report. Codex pen-test: 13 findings in 15 minutes, fixes in 45.
• When can we say AI made a scientific discovery? — MIT Technology Review950 Claude agents, 21 hours, a repeating pattern around a known enzyme. Biologists said that is the easy part.
• 📈 Monday data: Damming the slop floods — Exponential ViewEvery third new webpage has some AI in it. Deezer: AI tracks 1–3% of streams; up to 85% of those streams looked fake.
• Quoting Muse AI Agent — Simon Willison's WeblogAuto-reply said the buyer was downstairs. The seller waited. The agent asked whether to stop promising it.
• Quoting @joedaroo — Simon Willison's WeblogOpenAI’s agent-security lead: the surprise was how fast capability jumped, not that a fence failed.
• ImaJev-4b — r/LocalLLaMA4B decision head on Qwen3.5; #1 of 91 on JevBench composite. About $1,200 in rented GPUs.
• Nvidia CEO hopes rogue AI is an engineering problem — Anadolu AgencyJensen Huang: if it is not an engineering problem, it is “not solvable.”
• Elon Musk, SpaceXAI subpoenaed by NYC in AI safety investigation — CNBCCity Council wants Musk or another representative to testify. Hearing details not in the stored alert.

New on arXiv

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• Bootstrapping Conversational Recommendation Agents At Spotify — arXivSynthetic multi-turn data plus a self-fix loop. +8% on a tuned prompt. Live: +14% listening, +5% WAU, 5% fewer skips.
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• Where Does Retrieval-Based Open-Ended Evaluation Fail? — arXivBigger models, more web, medical fine-tunes do not fix retrieve-then-verify on long clinical answers.
• A Survey on Fake Review Detection — arXiv211 studies, 2018 onward. LLMs write the fakes and power the detectors.
• SlideLab: Audience-Centered Scientific Slide Generation — arXivPreferred on 77% of papers; ~4× fewer tokens than the strongest open baseline.
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