Field Signal · Curated Reading
The Engineering
Signal.
High-signal field notes, architecture teardowns, and engineering writing from 50 publications. A focused reading queue for becoming a stronger end-to-end engineer. Updated 22 Aug.
Join the AMD Open Robotics Hackathon
Open the source for the full engineering note.
SIMA 2: An Agent that Plays, Reasons, and Learns With You in Virtual 3D Worlds
Introducing SIMA 2, a Gemini-powered AI agent that can think, understand, and take actions in interactive environments.
Understanding neural networks through sparse circuits
OpenAI is exploring mechanistic interpretability to understand how neural networks reason. Our new sparse model approach could make AI systems more transparent and support safer, more reliable behavior.
Introducing GPT-5.1 for developers
GPT-5.1 is now available in the API, bringing faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools.
How Philips is scaling AI literacy across 70,000 employees
Philips is scaling AI literacy with ChatGPT Enterprise, training 70,000 employees to use AI responsibly and improve healthcare outcomes worldwide.
Introducing group chats in ChatGPT
Collaborate with others, and ChatGPT, in the same conversation.
Building for an Open Future - our new partnership with Google Cloud
Open the source for the full engineering note.
Neuro drives national retail wins with ChatGPT Business
Neuro uses ChatGPT Business to scale nationwide with fewer than 70 employees, saving time, reducing costs, and turning faster execution across sales and operations into growth.
Fighting the New York Times’ invasion of user privacy
OpenAI is fighting the New York Times’ demand for 20 million private ChatGPT conversations and accelerating new security and privacy protections to protect your data.
GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum
This GPT-5 system card addendum provides updated safety metrics for GPT-5.1 Instant and Thinking, including new evaluations for mental health and emotional reliance.
GPT-5.1: A smarter, more conversational ChatGPT
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.1 starts rolling out today to paid users.
Teaching AI to see the world more like we do
Our new paper analyzes the important ways AI systems organize the visual world differently from humans.
Streamfest Day 2: Smarter streaming in the cloud and the future of Kafka
Redpanda Streamfest is a two-day virtual event for developers to master data streaming for the AI era. Here’s what happened on day two.
Streamfest Day 1: AI, governance, and enterprise agents
Redpanda Streamfest is a two-day virtual event for developers to master data streaming for the AI era. Here’s what happened on day one.
How AI is giving Northern Ireland teachers time back
A six-month long pilot program with the Northern Ireland Education Authority’s C2k initiative found that integrating Gemini and other generative AI tools saved participating teachers an average of 10 hours per week.
Free ChatGPT for transitioning U.S. servicemembers and veterans
OpenAI is offering U.S. servicemembers and veterans within 12 months of retirement or separation a free year of ChatGPT Plus to support their transition to civilian life. The tools can help with resumes, interviews, education, and planning for what’s next.
Kafka automation made simple | Redpanda
Tired of brittle Kafka scripts? Learn how Redpanda automates cluster management with zero-touch operations, built-in durability, and easier scaling.
Understanding prompt injections: a frontier security challenge
Prompt injections are a frontier security challenge for AI systems. Learn how these attacks work and how OpenAI is advancing research, training models, and building safeguards for users.
Discord Update: November 6, 2025 Changelog
Here's the Discord Changelog from November 6, 2025, so you can stay informed on what’s new in recent app updates!
A Cornucopia of Updates Make Discord on Desktop Fresher Than a Crisp Fall Breeze
This fall, emoji making gets faster, the Settings page gets a redesign, Group DMs are easier to customize, more games gain support for special Discord-powered capabilities, and Family Center gets some expanded features. Take a peek at what’s new this season!
You Should Write An Agent
Some concepts are easy to grasp in the abstract. Boiling water: apply heat and wait. Others you really need to try. You only think you understand how a bicycle works, until you learn to ride one. There are big ideas in computing that are easy to get your head around. The AWS S3 API. It’s the most im...
Redpanda 25.3 delivers near-instant disaster recovery and more
Check out how the latest Redpanda release is providing the resilience, efficiency, and interoperability that modern enterprises need for their streaming workloads.
Introducing the Teen Safety Blueprint
Discover OpenAI’s Teen Safety Blueprint—a roadmap for building AI responsibly with safeguards, age-appropriate design, and collaboration to protect and empower young people online.
AI progress and recommendations
AI is advancing fast. We have the chance to shape its progress—toward discovery, safety, and a better future for everyone.
The Write Last, Read First Rule
TigerBeetle is a financial transactions database built for correctness. Yet, building a correct system from correct components remains a challenge: