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2026-04-27 · Δ 22 new vs 2026-04-26 · generated 2026-04-27T03:43:10Z · 0.019s

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digest 2026-04-27 · generated 2026-04-27T03:43:10Z · no feed lag detected · news sources 6/6 ok · Δ 22 new

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Highlights

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Top highlights (metadata-only; no AI synthesis):

- NEWS · AI: Our principles (https://openai.com/index/our-principles) — OpenAI Blog
snippet: Our mission is to ensure that AGI benefits all of humanity. Sam Altman shares five principles that guide our work.
- NEWS · AI: DeepSeek previews new AI model that 'closes the gap' with frontier models | TechCrunch (https://techcrunch.com/2026/04/24/deepseek-previews-new-ai-model-that-closes-the-gap-with-frontier-models/) — Brave News
snippet: DeepSeek says both models are more efficient and performant than DeepSeek V3.2 due to architectural improvements, and have almost "closed the gap" with current leading models, both open and closed, on reasoning benchmarks.
- NEWS · AI: Trump's missed AI deadlines (https://www.axios.com/2026/04/24/trump-missed-ai-deadlines) — Brave News
snippet: Key deadlines set out in President Trump's executive order have passed, with agencies failing to deliver on major steps that were due more than a month ago.
- NEWS · Networking: April 2026 Outage Post-Mortem - Jim's Pckt - pckt (https://pckt.blog/b/jcalabro/april-2026-outage-post-mortem-219ebg2) — Brave News
snippet: Hey all! I'm Jim, and I do system-y things at Bluesky. I'm here to give you some details about what happened on Monday of this week that caused Bluesky to go do...
- NEWS · Projects: 5 open-source developer tools that are better than their well-funded competitors (https://www.xda-developers.com/open-source-developer-tools-that-are-better-than-their-competitors/) — Brave News
snippet: As someone who frequently maps ... brainstorming a new project layout on an infinite canvas (like dragging in blocks, drawing connectors, and grouping ideas), and then flip to a document view to refine the technical specs. AFFiNE is an o…
- NEWS · Education: The Ed-Tech Backlash Is Here. What It Means for Schools (https://www.edweek.org/technology/the-ed-tech-backlash-is-here-what-it-means-for-schools/2026/04) — Brave News
snippet: Most educators—74%—say their ... technology due to pushback or complaints from parents, according to the EdWeek Research Center survey. The percentage of districts dialing back tech use in school could rise as generative AI increasingly…
- NEWS · Biotech: Medtronic gets FDA breakthrough for Sphere-9 VT | MDT Stock News (https://www.stocktitan.net/news/MDT/medtronic-announces-key-affera-tm-clinical-study-milestones-for-qybs4y6jltkt.html) — Brave News
snippet: View original content to download ...ey-affera-clinical-study-milestones-for-sphere-9-and-sphere-360-catheters-as-global-adoption-continues-302753436.html ... Interim answer: 65.5% of patients treated with Sphere-9 remained free from VT…
- NEWS · AI: AI Watch: Global regulatory tracker - India (UPDATED) | White & Case LLP - JDSupra (https://www.jdsupra.com/legalnews/ai-watch-global-regulatory-tracker-4119458/) — Brave News
snippet: National frameworks and guidelines inform India's approach to AI regulation, including new rules on the use of AI-generated images and audio.
- NEWS · AI: Every Major AI Benchmark in 2026 — What the Numbers Actually Mean (And What Labs Don’t Want You to Check) | by Aditya kumar jha | Apr, 2026 | Medium (https://medium.com/@adityakumarjha292004/every-major-ai-benchmark-in-2026-what-the-numbers-actually-mean-and-what-labs-dont-want-you-to-82cb582c1bcf) — Brave News
snippet: By Aditya Kumar Jha · Founder, LumiChats · 21-year-old engineering student building the future of AI access
- NEWS · Networking: The AWS outage post-mortem is more revealing in what it doesn’t say (https://www.computerworld.com/article/4082890/the-aws-outage-post-mortem-is-more-revealing-in-what-it-doesnt-say.html) — Brave News
snippet: The company listed all of the systems that went haywire, but never really identified what happened differently that day to cause problems. Worse yet, putting out technology brushfires this way leaves the forest in danger of burning again.
- NEWS · Education: The future of AI in the classroom (https://hechingerreport.org/proof-points-future-ai-classroom/) — Brave News
snippet: John Whitmer of Learning Data Insights called that oversight by the research community a “big miss.” · Related: Asian American students lose more points in an AI essay grading study ... The ASU+GSV Summit in San Diego is a giant ed tech…
- NEWS · Biotech: FDA Grants Breakthrough Status To Promising Spinal Tumor Drug (https://www.medindia.net/news/healthwatch/fda-grants-breakthrough-status-to-promising-spinal-tumor-drug-223187-1.htm) — Brave News
snippet: What does FDA breakthrough status mean for a new spinal tumor drug? Learn about early results and treatment potential.

Digest

Tech + AI + Science News

Tech + AI + Science News

9 item(s)

Our principles new
OpenAI Blog · 2026-04-26
Open
Our mission is to ensure that AGI benefits all of humanity. Sam Altman shares five principles that guide our work.
DeepSeek previews new AI model that 'closes the gap' with frontier models | TechCrunch
Brave News
Open
DeepSeek says both models are more efficient and performant than DeepSeek V3.2 due to architectural improvements, and have almost "closed the gap" with current leading models, both open and closed, on reasoning benchmarks.
Trump's missed AI deadlines
Brave News
Open
Key deadlines set out in President Trump's executive order have passed, with agencies failing to deliver on major steps that were due more than a month ago.
April 2026 Outage Post-Mortem - Jim's Pckt - pckt new
Brave News
Open
Hey all! I'm Jim, and I do system-y things at Bluesky. I'm here to give you some details about what happened on Monday of this week that caused Bluesky to go do...
5 open-source developer tools that are better than their well-funded competitors new
Brave News
Open
As someone who frequently maps ... brainstorming a new project layout on an infinite canvas (like dragging in blocks, drawing connectors, and grouping ideas), and then flip to a document view to refine the technical specs. AFFiNE is an open-source PKM tool that rivals ...
The Prompt API new
Hacker News · 2026-04-27
Open
Comments
Notepad++ for Mac – Independent community port new
Hacker News · 2026-04-27
Open
Comments
EvanFlow – A TDD driven feedback loop for Claude Code new
Hacker News · 2026-04-27
Open
Comments
TurboQuant: A First-Principles Walkthrough new
Hacker News · 2026-04-27
Open
Comments
Research (arXiv)

Research (arXiv)

10 item(s)

Spend Less, Fit Better: Budget-Efficient Scaling Law Fitting via Active Experiment Selection new
arXiv · 2026-04-24
Open
Scaling laws are used to plan multi-million-dollar training runs, but fitting those laws can itself cost millions. In modern large-scale workflows, assembling a sufficiently informative set of pilot experiments is already a major budget-allocation problem rather than a routine preprocessing step. We formulate scaling-law fitting as budget-aware sequential experimental design: given a finite pool of runnable experiments with heterogeneous costs, choose which runs to execute so as to maximize extrapolation accuracy in a high-cost target region. We then propose an uncertainty-aware method for sequentially allocating experimental budget toward the runs most useful for target-region extrapolation. Across a diverse benchmark of scaling-law tasks, our method consistently outperforms classical design-based baselines, and often approaches the performance of fitting on the full experimental set wh
Correlated Quantum Dephasometry: Symmetry-Resolved Noise Spectroscopy of Two-Dimensional Superconductors and Altermagnets new
arXiv · 2026-04-24
Open
Symmetry-resolved spectroscopies, such as angle-resolved photoemission spectroscopy and polarization-resolved Raman, are central for quantum material characterization, yet remain challenging at nanoscale dimensions and low frequencies. Here, we propose correlated quantum dephasometry, which enables symmetry resolved quantum noise spectroscopy of materials at nanoscale and low ($\sim$MHz) frequencies via correlated dephasing of two spin qubits near materials. Our approach leverages the finite-range spatial structures of nonlocal near-field noise correlations to isolate rotational symmetry of the material response in momentum space beyond single qubit capabilities. We apply our approach to two-dimensional (2D) superconductors, and predict clear fingerprints that discriminate s-, d-, and g-wave symmetry of the superconducting gap. To highlight the generality, we further show that the same f
How Do AI Agents Spend Your Money? Analyzing and Predicting Token Consumption in Agentic Coding Tasks new
arXiv · 2026-04-24
Open
The wide adoption of AI agents in complex human workflows is driving rapid growth in LLM token consumption. When agents are deployed on tasks that require a significant amount of tokens, three questions naturally arise: (1) Where do AI agents spend the tokens? (2) Which models are more token-efficient? and (3) Can agents predict their token usage before task execution? In this paper, we present the first systematic study of token consumption patterns in agentic coding tasks. We analyze trajectories from eight frontier LLMs on SWE-bench Verified and evaluate models' ability to predict their own token costs before task execution. We find that: (1) agentic tasks are uniquely expensive, consuming 1000x more tokens than code reasoning and code chat, with input tokens rather than output tokens driving the overall cost; (2) token usage is highly variable and inherently stochastic: runs on the s
Representational Harms in LLM-Generated Narratives Against Global Majority Nationalities new
arXiv · 2026-04-24
Open
Large language models (LLMs) are increasingly used for text generation tasks from everyday use to high-stakes enterprise and government applications, including simulated interviews with asylum seekers. While many works highlight the new potential applications of LLMs, there are risks of LLMs encoding and perpetuating harmful biases about non-dominant communities across the globe. To better evaluate and mitigate such harms, more research examining how LLMs portray diverse individuals is needed. In this work, we study how national origin identities are portrayed by widely-adopted LLMs in response to open-ended narrative generation prompts. Our findings demonstrate the presence of persistent representational harms by national origin, including harmful stereotypes, erasure, and one-dimensional portrayals of Global Majority identities. Minoritized national identities are simultaneously underr
Agentic World Modeling: Foundations, Capabilities, Laws, and Beyond new
arXiv · 2026-04-24
Open
As AI systems move from generating text to accomplishing goals through sustained interaction, the ability to model environment dynamics becomes a central bottleneck. Agents that manipulate objects, navigate software, coordinate with others, or design experiments require predictive environment models, yet the term world model carries different meanings across research communities. We introduce a "levels x laws" taxonomy organized along two axes. The first defines three capability levels: L1 Predictor, which learns one-step local transition operators; L2 Simulator, which composes them into multi-step, action-conditioned rollouts that respect domain laws; and L3 Evolver, which autonomously revises its own model when predictions fail against new evidence. The second identifies four governing-law regimes: physical, digital, social, and scientific. These regimes determine what constraints a wo
Relaxation-Informed Training of Neural Network Surrogate Models new
arXiv · 2026-04-24
Open
ReLU neural networks trained as surrogate models can be embedded exactly in mixed-integer linear programs (MILPs), enabling global optimization over the learned function. The tractability of the resulting MILP depends on structural properties of the network, i.e., the number of binary variables in associated formulations and the tightness of the continuous LP relaxation. These properties are determined during training, yet standard training objectives (prediction loss with classical weight regularization) offer no mechanism to directly control them. This work studies training regularizers that directly target downstream MILP tractability. Specifically, we propose simple bound-based regularizers that penalize the big-M constants of MILP formulations and/or the number of unstable neurons. Moreover, we introduce an LP relaxation gap regularizer that explicitly penalizes the per-sample gap o
Minimax Optimal Procedures for Joint Detection and Estimation new
arXiv · 2026-04-24
Open
We investigate the problem of jointly testing a pair of composite hypotheses and, depending on the test result, estimating a random parameter under distributional uncertainties. Specifically, it is assumed that the distribution of the data given the parameter of interest, is subject to uncertainty. Both, a Bayesian formulation and a Neyman-Pearson-like formulation, are considered. It is shown that the optimal policy induces an $f$-similarity that must be maximized to identify the least favorable distributions. Besides the general results, the implementation is investigated using a band-type uncertainty model. For designing the minimax procedures, existing algorithms are modified to increase convergence speed while maintaining numerical stability. The proposed theory is supplemented by numerical results for both formulations.
Inter-Stance: A Dyadic Multimodal Corpus for Conversational Stance Analysis new
arXiv · 2026-04-24
Open
Social interactions dominate our perceptions of the world and shape our daily behavior by attaching social meaning to acts as simple and spontaneous as gestures, facial expressions, voice, and speech. People mimic and otherwise respond to each other's postures, facial expressions, mannerisms, and other verbal and nonverbal behavior, and form appraisals or evaluations in the process. Yet, no publicly-available dataset includes multimodal recordings and self-report measures of multiple persons in social interaction. Dyadic recordings and annotation are lacking. We present a new data corpus of multimodal dyadic interaction (45 dyads, 90 persons) that includes synchronized multi-modality behavior (2D face video, 3D face geometry, thermal spectrum dynamics, voice and speech behavior, physiology (PPG, EDA, heart-rate, blood pressure, and respiration), and self-reported affect of all participan
A Vehicle Routing Problem for Human-Centered Electric Mobility new
arXiv · 2026-04-24
Open
In this paper, we present the Electric Mobility Dial-a-Ride Problem (EM-DARP), which extends the Electric Vehicle Dial-a-Ride Problem (EV-DARP) to better accommodate human-focused mobility services. The problem involves utilizing a fleet of heterogeneous Electric Vehicles (EVs) to fulfill a set of customer requests with DARP and mobility-related specifications, while incorporating visits to charging stations amid requests. The problem is formulated as a Mixed-Integer Linear Program (MILP) and subsequently solved for a number of curated evaluation scenarios to demonstrate its practical applicability.
An Undecidability Proof for the Plan Existence Problem new
arXiv · 2026-04-24
Open
The plan existence problem asks, given a goal in the form of a formula in modal logic, an initial epistemic state (a pointed Kripke model), and a set of epistemic actions, whether there exists a sequence of actions that can be applied to reach the goal. We prove that even in the case where the preconditions of the epistemic actions have modal depth at most 1, and there are no postconditions, the plan existence problem is undecidable. The (un)decidability of this problem was previously unknown.
Security (NVD + CISA KEV)

Security (NVD + CISA KEV)

0 item(s)

No items in this section.
Projects + Resources (Discovery)

Projects + Resources (Discovery)

5 item(s)

ESP32 | DroneBot Workshop new
Brave Search
Open
We'll pair an inexpensive game controller with an ESP32 and control LEDs, motors and a lot more.Read More » · ChatGPT is an amazing AI chatbot that can also generate code in just about any programming language! Today we will see how to write both C++ and MicroPython code for Arduino and ESP32 using ChatGPT.
Introduction to ESP32 – Getting Started – 2020 Videos – DroneBot Workshop Forums new
Brave Search
Open
DroneBot Workshop V... ... Introduction to ESP... ... Today we will get started with the ESP32, a low-cost and extremely versatile microcontroller with integrated WiFi and Bluetooth. I’ll show you how to set up your Arduino IDE for the ESP32 and then we’ll try out several example sketches.
Tutorials | DroneBot Workshop new
Brave Search
Open
Table of Contents1 Introduction2 ... I²C Multiple Bus Demo Hookup4.2Read More » · <strong>A complete guide to using DC servo motors with microcontrollers like Arduino and ESP32.</strong>...
The Complete Kali Linux Course: Beginner to Advanced! w/English Subtitles - YouTube new
Brave Search
Open
Get The Complete Ethical Hacking Course Bundle! http://josephdelgadillo.com/product/hacking-bundle-2017/ Enroll in our newest course! https://www.udemy.com/e...
Linux for Ethical Hackers (Kali Linux Tutorial) - YouTube new
Brave Search
Open
<strong>In this course, you will learn the basics of Kali Linux</strong>. The course covers installation, using the terminal / command line, bash scripting, tools and feature...

Sources

Grounded items come from local feed artifacts (metadata-only). This panel shows feed freshness and errors.

Feeds: generated 2026-04-27T03:42:50Z · 19.996s · ok
news ok

News (RSS/Atom)

900 item(s) · updated 2026-04-27T03:43:09Z · sources 6/6 ok · newest 2026-04-27 · configured
News sources (6/6 ok)
OpenAI Blog ok
18 item(s) · newest 2026-04-26
Hacker News ok
18 item(s) · newest 2026-04-27
GitHub Blog ok
10 item(s) · newest 2026-04-20
ScienceDaily — Artificial Intelligence ok
18 item(s) · newest 2026-04-20
ScienceDaily — Education & Learning ok
18 item(s) · newest 2026-03-11
ScienceDaily — Stem Cells ok
18 item(s) · newest 2026-04-08
arxiv ok

Research (arXiv)

180 item(s) · updated 2026-04-27T03:42:50Z · newest 2026-04-27
nvd ok

Security (NVD)

600 item(s) · updated 2026-04-27T03:42:51Z · newest 2026-04-27
kev ok

Security (CISA KEV)

600 item(s) · updated 2026-04-27T03:42:52Z · newest 2026-04-27
brave ok

Discovery (Brave)

577 item(s) · updated 2026-04-27T03:42:52Z · newest 2026-04-27 · configured

Archive

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