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My Agentic Diaries
Issue #91  ·  October 27th, 2026
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The Brief

Concerning behavior from a popular open-weight AI model

Leading today: Concerning behavior from a popular open-weight AI model. Also in this issue: Greptile takes bug detection beyond code review with GPT-6 Astra; Working with academic communities to build scientific understanding. 16 stories in total, selected automatically from 63 candidates across the day's feeds.

Headline News
1
cohere.com
Concerning behavior from a popular open-weight AI model

Discover how untrusted open-weight AI models can potentially leak data, even when self-hosted. Learn the security risks and how to protect your enterprise. (Trending on Hacker News (256 points, 111 comments))

2
openai.com
Greptile takes bug detection beyond code review with GPT-6 Astra

How Greptile uses GPT-6 Astra to test user workflows, Daybreak to strengthen security, and Codex to reduce rework.

3
openai.com
Working with academic communities to build scientific understanding

OpenAI shares model results on the Kakeya conjecture, Exponential Time Hypothesis, and quantum chromodynamics—and how researchers can verify and build on them.

New Today
openai.com
GPT-6.1 Sol helps CodeRabbit strengthen security across complex codebases

CodeRabbit uses GPT-6.1 Sol to investigate security risks across complex codebases. Its security agent helps developers review findings and proposed fixes.

Read →
theverge.com
OpenAI announces three big science discoveries and a new way to work with academics

Less than a month after its mass release of hundreds of manuscripts that it said contained solutions to long-standing mathematics questions, OpenAI is back with three more "major" discoveries in math, computer science, a...

Read →
the-decoder.com
GPT-6.1 Terra halves OpenAI's API prices and still gains ground on its larger models

OpenAI has released GPT-6.1 Terra, a mid-range model that cuts API prices in half compared to its predecessor.

Read →
blog.cloudflare.com
Cross-request KV cache exposure in the GLM-5.3 Workers AI model (155 responses)

A configuration mismatch in GLM 5.3 on Workers AI triggered an SGLang bug that exposed KV cache pages across requests. Here is how we addressed the issue. (Trending on Hacker News (70 points, 13 comments))

Read →
arstechnica.com
Apple releases iOS and macOS 27.2 with new Siri AI features, new Music logo

Included is the ability to limit which applications Siri can directly access. (Included is the ability to limit which applications Siri can directly access)

Read →
marktechpost.com
Nace AI Releases Drex for Search for AI Agents: 92.05% on BrowseComp-Plus With 12.6 Search Calls

Nace AI has released Drex for Search, bringing its Drex decision models to document search for AI agents. Nace reports 92.05% on BrowseComp-Plus with 12.6 search calls, and fewer agent turns on OfficeQA Pro.

Read →
Research & Engineering
openai.com
How Fanatics and OpenAI streamline the fan experience

Fanatics uses OpenAI to help fans complete their game-day outfits with Shop the Look. Testing across roughly 30,000 MLB products showed 10% higher engagement.

Read →
openai.com
How Ultrafast cut incident investigation from hours to minutes at OpenAI

See how OpenAI engineers use Codex Ultrafast to investigate incidents in minutes. Explore faster security analysis, code refactoring, and daily workflows.

Read →
theverge.com
Kevin Roose is AGI-pilled. Why aren’t you?

Today, I’m talking to Kevin Roose, journalist and author of the new book The AGI Chronicles, which details the recent and explosive transformation of the AI industry.

Read →
wired.com
Why Anthropic’s IPO Prospectus Is Missing So Many Key Figures

Anthropic’s S-1 filing is hundreds of pages long—and it leaves out quite a few financial details. “Anthropic owes investors more information,” one analyst tells WIRED.

Read →
arxiv.org
Deep Scientific Reasoning under Physical Constraints: Structure-Aware Spectrum Prediction

Structured scientific spectra encode rich physical information while obeying hard constraints, such as conservation laws and characteristic spectral geometry.

Read →
arxiv.org
BriLLM-MetaPred: A Representation-Prediction Unity Language Model with Adaptive Self-Measurement

We present BriLLM-MetaPred, the first engineering implementation of the MetaPred machine-learning framework established by a mathematical theory of AGI, instantiated for language modeling.

Read →
Project Highlights
github.com
Show HN: Hob - Open-source, on device alternative to Claude Cowork and ChatGPT

An easier way to use AI on your own computer. A free, open-source alternative to Claude and ChatGPT that runs open-weight models like Gemma and gpt-oss locally on Mac, Windows and Linux. Private, a...

Read →

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