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LLM architecture comparison

news.ycombinator.com Sebastian Raschka 2025-07-20 06:56:01

It has been seven years since the original GPT architecture was developed. At first glance, looking back at GPT-2 (2019) and forward to DeepSeek-V3 and Llama 4 (2024-2025), one might be surprised at how structurally similar these models still are. Sure, positional embeddings have evolved from absolute to rotational (RoPE), Multi-Head Attention has largely given way to Grouped-Query Attention, and the more efficient SwiGLU has replaced activation functions like GELU. But beneath these minor refi

Topics: attention deepseek figure gemma model

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The Big LLM Architecture Comparison

news.ycombinator.com Sebastian Raschka 2025-07-20 11:56:01

It has been seven years since the original GPT architecture was developed. At first glance, looking back at GPT-2 (2019) and forward to DeepSeek-V3 and Llama 4 (2024-2025), one might be surprised at how structurally similar these models still are. Sure, positional embeddings have evolved from absolute to rotational (RoPE), Multi-Head Attention has largely given way to Grouped-Query Attention, and the more efficient SwiGLU has replaced activation functions like GELU. But beneath these minor refi

Topics: attention deepseek figure gemma model

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Renewed iPad Pros pair nicely with iPadOS 26, and they’re quite affordable right now

9to5mac.com Michael Burkhardt 2025-07-20 09:01:30

A short while ago, I was browsing Apple deals on Amazon (as one does) – and something stuck out to me. High-end iPad Pros, particularly 12.9-inch models, are surprisingly cheap. I saw M1 models with 1TB and cellular for nearly $600. Given the recent iPadOS 26 overhaul that makes the iPad much more Mac-like, I figured these deals would be worth a share. While renewed iPad deals are the focus here because of their affordability, new iPad deals are also mentioned at the end. Renewed M1 iPad Pro d

Topics: apple deals ipad models renewed

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OpenAI's experimental model achieved gold at the International Math Olympiad

engadget.com Unknown 2025-07-20 09:27:19

It's a major milestone for AI models, but this level of reasoning won't be available to the public anytime soon. OpenAI has achieved "gold medal-level performance" at the International Math Olympiad, notching another important milestone for AI's fast-paced growth. Alexander Wei, a research scientist at OpenAI working on LLMs and reasoning, posted on X that an experimental research model delivered on this "longstanding grand challenge in AI." According to Wei, an unreleased model from OpenAI wa

Topics: ai level math model openai

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Evaluating publicly available LLMs on IMO 2025

news.ycombinator.com Unknown 2025-07-20 05:23:23

Introduction Recent progress in the mathematical capabilities of LLMs have created a need for increasingly challenging benchmarks. With MathArena, we address this need by evaluating models on difficult and recent mathematical competitions, offering benchmarks that are both uncontaminated and interpretable. Among these competitions, the International Mathematical Olympiad (IMO) stands out as the most well-known and prestigious. As such, an evaluation of the IMO 2025, which took place just a few

Topics: best model models proof responses

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OpenAI: GPT-5 is coming, "we'll see" if it creates a shockwave

bleepingcomputer.com Unknown 2025-07-19 05:47:46

OpenAI's next foundational and state-of-the-art model, GPT-5, is still on its way after a delay. OpenAI won't tell us the release date for now. In a conversation with a user on X, OpenAI's researcher Xikun Zhand confirmed that GPT-5 is still coming. When asked if GPT-5 will be another shockwave for the AI industry, Zhand responded with "we will see" and a wink emoji, which seems to suggest that it could be a really significant update. Ahead of GPT-5 debut, OpenAI announced ChatGPT Agent, whic

Topics: gpt model new openai zhand

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ChatGPT"s GPT-5-reasoning-alpha model spotted ahead of launch

bleepingcomputer.com Unknown 2025-07-20 08:07:22

GPT-5 might be just a few days or weeks away, as we've spotted references to a new model called gpt-5-reasoning-alpha-2025-07-13. As spotted on X, OpenAI is testing a model called "gpt-5-reasoning-alpha-2025-07-13." This model was finalised on the 13th of July, and it appears to be the final round of testing. "Models: openai/gpt-5-reasoning-alpha-2025-07-13: reasoning_effort: high," one of the code references read. Alexander Wei, a researcher at OpenAI, recently confirmed that GPT-5 is on it

Topics: alpha gpt model o3 openai

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How to Delete All of Your Social Media Accounts: Instagram, X, Facebook, TikTok, and More

wired.com Boone Ashworth 2025-07-20 07:30:00

Here’s an evergreen take: There has never been a better time to get off social media. Social services have evolved even further into becoming sticky traps for doomscrolling and AI-generated slop, and are hitherto unprecedented frontiers for rage bait. Bummed out about all the misinformation and being part of a profit machine that funds one increasingly unhinged billionaire or another? Well, there’s a way out. Unfortunately, social media companies don’t always make it very easy to rescind their

Topics: account accounts deletion facebook meta

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I spoke with an AI version of myself, thanks to Hume's free tool - how to try it

zdnet.com Webb Wright 2025-07-20 09:00:20

Chiken Brave/Getty Images If you've ever had the urge to converse with an AI version of yourself, now you can -- kind of. On Thursday, AI start-up Hume announced the launch of a new "hyperrealistic voice cloning" feature for the latest iteration of its Empathic Voice Interface (EVI) model, EVI 3, which was unveiled last month. The idea is that by uploading a short audio recording of yourself speaking -- ideally between 30 and 90 seconds -- the model should be able to quickly churn out an AI-ge

Topics: ai evi like models voice

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I found a compact power station with solar charging, and it's a new off-grid essential

zdnet.com Adrian Kingsley-Hughes 2025-07-20 09:15:12

ZDNET's key takeaways The EcoFlow Delta 3 Plus is available now for $899. It's a compact 1,024Wh power station that can connect to external batteries, and its improved cooling mechanism makes it a lot quieter than its predecessor. The silver finish has a tendency to get dinged up. $899 at Amazon Power stations come in all shapes and sizes, but I find that the units on the extreme ends get most of the attention: either the massive ones that can power a home for days or the tiny, ultraportables

Topics: delta finish plus power unit

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New embedding model leaderboard shakeup: Google takes #1 while Alibaba’s open source alternative closes gap

venturebeat.com Ben Dickson 2025-07-20 11:21:39

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now Google has officially moved its new, high-performance Gemini Embedding model to general availability, currently ranking number one overall on the highly regarded Massive Text Embedding Benchmark (MTEB). The model (gemini-embedding-001) is now a core part of the Gemini API and Vertex AI, enabling developers to build applications such as sema

Topics: embedding gemini model models source

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Ccusage: A CLI tool for analyzing Claude Code usage from local JSONL files

news.ycombinator.com Unknown 2025-07-20 15:22:49

ccusage Analyze your Claude Code token usage and costs from local JSONL files — incredibly fast and informative! Installation Quick Start (Recommended) Thanks to ccusage's incredibly small bundle size ( ), you can run it directly without installation: # Using bunx (recommended for speed) bunx ccusage # Using npx npx ccusage@latest # Using deno (with security flags) deno run -E -R= $HOME /.claude/projects/ -S=homedir -N= ' raw.githubusercontent.com:443 ' npm:ccusage@latest 💡 Tip: We recomme

Topics: ccusage claude model token usage

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Delta Announces New System Where AI Makes Up the Price for Your Ticket on the Spot

futurism.com Unknown 2025-07-20 21:40:38

In the latest sign frivolous and irritating use of AI, US airline Delta is looking to harness the tech to set prices for each individual customer, instead of just listing what they actually cost. As Fortune reports, the airline is looking to push the boundaries of how much passengers are willing to shell out for a plane ticket. By the end of this year, Delta hopes to price 20 percent of its tickets individually, using AI. The practice has already drawn plenty of scrutiny from lawmakers and pri

Topics: ai delta prices pricing ticket

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Exhausted man defeats AI model in world coding championship

news.ycombinator.com Unknown 2025-07-21 03:43:12

A Polish programmer running on fumes recently accomplished what may soon become impossible: beating an advanced AI model from OpenAI in a head-to-head coding competition. The 10-hour marathon left him "completely exhausted." On Wednesday, programmer Przemysław Dębiak (known as "Psyho"), a former OpenAI employee, narrowly defeated the custom AI model in the AtCoder World Tour Finals 2025 Heuristic contest in Tokyo. AtCoder, a Japanese platform that hosts competitive programming contests and main

Topics: ai contest dębiak henry model

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New ChatGPT o3-alpha model hints at coding upgrade

bleepingcomputer.com Unknown 2025-07-21 07:01:51

ChatGPT's o3 is OpenAI's best model to date because it features reasoning, and it might get even better in the next update. As spotted on X, OpenAI is testing a new "Alpha" variant of the o3 model, which has significant coding-related improvements. In our tests, BleepingComputer observed that o3-alpha is better than o3 in designing web pages, even with simple prompts. Others have spotted that o3-alpha is really good at creating simple web games. o3-alpha This model is called "o3-alpha-respon

Topics: alpha doesn model o3 openai

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Exhausted man defeats AI model in world coding championship

arstechnica.com Unknown 2025-07-21 07:34:14

A Polish programmer running on fumes recently accomplished what may soon become impossible: beating an advanced AI model from OpenAI in a head-to-head coding competition. The 10-hour marathon left him "completely exhausted." On Wednesday, programmer Przemysław Dębiak (known as "Psyho"), a former OpenAI employee, narrowly defeated the custom AI model in the AtCoder World Tour Finals 2025 Heuristic contest in Tokyo. AtCoder, a Japanese platform that hosts competitive programming contests and main

Topics: ai contest dębiak henry model

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What is Mistral AI? Everything to know about the OpenAI competitor

techcrunch.com Anna Heim 2025-07-21 07:43:18

Mistral AI, the French company behind AI assistant Le Chat and several foundational models, is officially regarded as one of France’s most promising tech startups and is arguably the only European company that could compete with OpenAI. But compared to its $6 billion valuation, its global market share is still relatively low. However, the recent launch of its chat assistant on mobile app stores was met with some hype, particularly in its home country. “Go and download Le Chat, which is made by

Topics: 2025 ai million mistral models

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How to Get Foreign Keys Horribly Wrong

news.ycombinator.com Haki Benita 2025-07-18 04:36:08

Constraints keep the integrity of your system and prevent you from shooting yourself in the foot. Foreign keys are a special type of constraint because, unlike unique, check, and primary keys, they span more than one relation. This makes foreign keys harder to enforce and harder to get right. In this article, I demonstrate common pitfalls, potential optimizations, and implicit behavior related to foreign keys. Table of Contents Watch 📺 This article is inspired by a talk I gave at DjangoCon EU

Topics: index migration models product user

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Meta refuses to sign EU’s AI code of practice

techcrunch.com Ram Iyer 2025-07-22 02:52:44

Meta has refused to sign the European Union’s code of practice for its AI Act, weeks before the bloc’s rules for providers of general-purpose AI models take effect. “Europe is heading down the wrong path on AI,” wrote Meta’s chief global affairs officer Joel Kaplan in a post on LinkedIn. “We have carefully reviewed the European Commission’s Code of Practice for general-purpose AI (GPAI) models and Meta won’t be signing it. This Code introduces a number of legal uncertainties for model developer

Topics: ai code companies models rules

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The Download: how to run an LLM, and a history of “three-parent babies”

technologyreview.com Rhiannon Williams 2025-07-22 06:10:00

In the early days of large language models, there was a high barrier to entry: it used to be impossible to run anything useful on your own computer without investing in pricey GPUs. But researchers have had so much success in shrinking down and speeding up models that anyone with a laptop, or even a smartphone, can now get in on the action. For people who are concerned about privacy, want to break free from the control of the big LLM companies, or just enjoy tinkering, local models offer a co

Topics: babies models people read story

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Delta Air Lines is using AI to set the maximum price you’re willing to pay

theverge.com Jess Weatherbed 2025-07-22 09:50:57

Delta Air Lines is leaning into dynamic ticket pricing that uses artificial intelligence to individually determine the highest fee you’d willingly pay for flights, according to comments Fortune spotted in the company’s latest earnings call. Following a limited test of the technology last year, Delta is planning to shift away from static ticket prices entirely after seeing “amazingly favorable” results. “We will have a price that’s available on that flight, on that time, to you, the individual,”

Topics: ai delta prices pricing ticket

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Arva AI (YC S24) Is Hiring an AI Research Engineer (London, UK)

news.ycombinator.com Unknown 2025-07-22 17:05:26

Location: In person, Central London, 4-5 days in office Type: Full-Time NB: We are able to sponsor visas Arva AI is revolutionising financial crime intelligence with our cutting-edge AI Agents. By automating manual human review tasks, we enhance operational efficiency and help financial institutions handle AML reviews, while cutting operational costs by 80%. As the AI Research Engineer, you’ll play a pivotal role in building and iterating on LLM-based and agentic features of our AI-powered c

Topics: ai fine models prompt systems

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Meta Poaches Two More Apple AI Executives

news.ycombinator.com Hartley Charlton 2025-07-22 19:30:59

After poaching one of Apple's top artificial intelligence executives with a $200 million pay package to lure him away from the company, Meta has now hired two of his subordinates, Bloomberg reports. Apple's Mark Lee and Tom Gunter are set to join Meta's Superintelligence Labs team, a newly established division tasked with building advanced AI systems capable of performing at or beyond human-level intelligence. Earlier this month, Ruoming Pang joined Meta. Until recently, he led Apple's found

Topics: apple intelligence meta models team

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My favorite use-case for AI is writing logs

news.ycombinator.com Unknown 2025-07-22 18:38:48

July 17, 2025 My favorite use-case for AI is writing logs One of my favorite AI dev products today is Full Line Code Completion in PyCharm (bundled with the IDE since late 2023). It’s extremely well-thought out, unintrusive, and makes me a more effective developer. Most importantly, it still keeps me mostly in control of my code. I’ve now used it in GoLand as well. I’ve been a happy JetBrains customer for a long time now, and it’s because they ship features like this. I frequently work with c

Topics: code data inference model tokens

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Delaunay Mesh Generation (2012)

news.ycombinator.com Unknown 2025-07-20 04:01:26

Delaunay Mesh Generation Our book is a thorough guide to Delaunay refinement algorithms that are mathematically guaranteed to generate meshes with high quality, including triangular meshes in the plane, tetrahedral volume meshes, and triangular surface meshes embedded in three dimensions. It is also the most complete guide available to Delaunay triangulations and algorithms for constructing them. We have designed the book for two audiences: researchers, especially graduate students, and engin

Topics: algorithms constrained delaunay refinement triangulations

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3D-printed living lung tissue

news.ycombinator.com Patty Wellborn 2025-07-23 03:20:42

UBC Okanagan researchers have developed a 3D bio-printed model that closely mimics the complexity of natural lung tissue, an innovation that could transform how scientists study lung disease and develop new treatments. Dr. Emmanuel Osei, Assistant Professor in the Irving K. Barber Faculty of Science, says the model produces tissue that closely resembles the complexity of a human lung, enabling improved testing of respiratory diseases and drug development. “To conduct our research and the testi

Topics: disease lung model osei tissue

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These overpriced airport battery chargers have been recalled for a fire risk

theverge.com Andrew Liszewski 2025-07-23 07:32:59

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. A company called iStore has issued a recall for its 5,000mAh Magnetic Wireless Power Bank (model IST-09991/W05) because its lithium ion battery can “overheat and ignite while charging,” posing a fire and burn risk. iStore has received three reports of the power banks exploding during charging resulting in a minor burn for one user and around $15,

Topics: bank banks istore model power

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All AI models might be the same

news.ycombinator.com Jack Morris 2025-07-23 08:28:49

Project CETI is a large-scale effort to decode whale speech. If AI models do learn a universal language, we might be able to use it to talk to whales. Growing up, I sometimes played a game with my friends called “Mussolini or Bread.” It’s a guessing game, kind of like Twenty Questions. The funny name comes from the idea that, in the space of everything, ‘Mussolini’ and ‘bread’ are about as far away from each other as you can get. One round might go like this: Is it closer to Mussolini or bre

Topics: compression embedding model models representation

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All AI Models Might be The Same

news.ycombinator.com Jack Morris 2025-07-23 13:28:49

Project CETI is a large-scale effort to decode whale speech. If AI models do learn a universal language, we might be able to use it to talk to whales. Growing up, I sometimes played a game with my friends called “Mussolini or Bread.” It’s a guessing game, kind of like Twenty Questions. The funny name comes from the idea that, in the space of everything, ‘Mussolini’ and ‘bread’ are about as far away from each other as you can get. One round might go like this: Is it closer to Mussolini or bre

Topics: compression embedding model models representation

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Delta moves to eliminate set prices, use AI to set your personal ticket price

news.ycombinator.com Irina Ivanova 2025-07-23 19:16:54

Fresh off a victory lap after a better-than-expected earnings report, Delta Air Lines is leaning into AI as a way to boost its profit margins further by maximizing what individual passengers pay for fares. By the end of the year, Delta plans for 20% of its ticket prices to be individually determined using AI, president Glen Hauenstein told investors last week. Currently, about 3% of the airline’s flight prices are AI-determined, triple the portion from nine months ago. Over time, the goal is t

Topics: ai delta fares price pricing

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Latest Tech News

LLM architecture comparison

The Big LLM Architecture Comparison

Renewed iPad Pros pair nicely with iPadOS 26, and they’re quite affordable right now

OpenAI's experimental model achieved gold at the International Math Olympiad

Evaluating publicly available LLMs on IMO 2025

OpenAI: GPT-5 is coming, "we'll see" if it creates a shockwave

ChatGPT"s GPT-5-reasoning-alpha model spotted ahead of launch

How to Delete All of Your Social Media Accounts: Instagram, X, Facebook, TikTok, and More

I spoke with an AI version of myself, thanks to Hume's free tool - how to try it

I found a compact power station with solar charging, and it's a new off-grid essential

New embedding model leaderboard shakeup: Google takes #1 while Alibaba’s open source alternative closes gap

Ccusage: A CLI tool for analyzing Claude Code usage from local JSONL files

Delta Announces New System Where AI Makes Up the Price for Your Ticket on the Spot

Exhausted man defeats AI model in world coding championship

New ChatGPT o3-alpha model hints at coding upgrade

Exhausted man defeats AI model in world coding championship

What is Mistral AI? Everything to know about the OpenAI competitor

How to Get Foreign Keys Horribly Wrong

Meta refuses to sign EU’s AI code of practice

The Download: how to run an LLM, and a history of “three-parent babies”

Delta Air Lines is using AI to set the maximum price you’re willing to pay

Arva AI (YC S24) Is Hiring an AI Research Engineer (London, UK)

Meta Poaches Two More Apple AI Executives

My favorite use-case for AI is writing logs

Delaunay Mesh Generation (2012)

3D-printed living lung tissue

These overpriced airport battery chargers have been recalled for a fire risk

All AI models might be the same

All AI Models Might be The Same

Delta moves to eliminate set prices, use AI to set your personal ticket price

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