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Latest story• Apr 30, 2026

OpenAI explains why ChatGPT developed a goblin fixation, and how it solved the issue

Somewhere inside OpenAI's latest AI model, goblins were multiplying. Not literally, but close enough to cause concern. It turns out GPT-5.5 had developed a peculiar fixation on mythical creatures, peppering its responses with goblins, gremlins, and trolls. The habit traces back to a "Nerdy personality" feature OpenAI briefly offered in ChatGPT. To train that personality, the model was rewarded for creative use of...

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X announces a rebuilt ad platform powered by AI

X launched an AI-powered ad platform, built with xAI, offering smarter targeting and easier campaign management. This supports X's ad revenue recovery, projected at $2.26 billion in 2025.

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Big Tech will spend nearly $700B on AI this year

Big Tech's AI spending is surging, with Alphabet, Amazon, Meta, and Microsoft expected to collectively spend ~$700B this year — up from $410B — driven by data center expansion, Nvidia chips, and high-speed networking.

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Anthropic is eyeing a funding round that could make it bigger than OpenAI

Anthropic is in early talks for a $40–$50 billion funding round that could value the AI company at over $900 billion — surpassing OpenAI's $852 billion valuation. Fueled by explosive revenue growth and massive compute deals with...

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Will AI lead to more accurate opinion polls?

AI-powered polling companies like France's Naratis are transforming opinion research by replacing slow, expensive human interviews with conversational AI that's claimed to be 10 times faster, 10 times cheaper, and 90% as...

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From grading papers to decoding jargon, here are some ways people are putting AI to work

AI is quietly transforming how people work across many fields. Teachers are grading 100 papers in 30 minutes instead of a week, product managers are decoding technical jargon from meetings, and marketers are building detailed...

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This startup’s new mechanistic interpretability tool lets you debug LLMs

San Francisco startup Goodfire has released Silico, a tool that lets developers look inside AI models and adjust specific neurons during training — something previously only possible at major labs like Anthropic and Google...

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AI is moving into your browser. Who controls it?

Browser makers like Google, Mozilla, and Apple are quietly building AI directly into web browsers, raising big questions about privacy and control. Since this AI runs locally on your device instead of the cloud, it's faster — but...

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How I Built a Real-Time AI Stock Advisor Using Elasticsearch, MCP, and LLMs

Frustrated by confusing stock markets and the fact that up to 90% of retail traders lose money, one engineer built an automated AI stock advisor to cut through the noise. Running on Elasticsearch, Apache Airflow, and a locally...

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Building with Gemini Embedding 2: Agentic multimodal RAG and beyond

Google's Gemini Embedding 2 is now widely available and works as a single AI model that processes text, images, video, audio, and documents together across 100+ languages. This unified approach lets developers build smarter...

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Can AI help doctors avoid missed diagnoses? A new study suggests yes

A new study found that an AI reasoning model correctly identified diagnoses about 80% of the time, outperforming doctors on challenging real-world cases. However, experts warn AI still struggles with uncertainty and nuance, and...

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Explaining Embeddings To My Uber Driver

Embeddings are the technology that allows AI to understand human language by turning words into mathematical coordinates, similar to GPS locations on a map. Words with similar meanings end up close together in this mathematical...

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Three ways to differentiate ReLU

ReLU (max(0, x)) isn't differentiable at x = 0, but three approaches handle this: pointwise (Heaviside), distributional derivatives, and the subgradient, which allows any slope between 0 and 1 at that point.

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More Memory Won’t Fix Your AI Agents

Larger context windows can make AI agents *less* reliable without proper structure. Define current state, relevant scope, and authorized tools upfront — structured context, not just more context, drives accurate decisions.

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When an AI agent should refuse to answer

AI agents should refuse requests in four cases: out-of-scope queries, missing permissions, low confidence, and safety risks. Confidence is hardest to detect—use proxy signals like retrieval logs and response sampling to catch...

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Lemonade v10.3: Run Local LLMs, Image Gen, and Speech on Your Own GPU for Free

Your cloud AI bill just got a worthy challenger. Lemonade, an open-source local AI server backed by AMD, lets developers run language models, image generation, and speech tools entirely on their own hardware, no data leaving the...

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Sanctioned Chinese AI Firm SenseTime Releases Image Model Built for Speed

SenseTime, a Chinese AI firm under US sanctions, released SenseNova U1, an open-source model that generates and interprets images faster than competitors by processing images directly without converting them to text first. The...

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How to Use ChatGPT to Find Real Flight Deals

Airline pricing algorithms track your searches and raise prices — but connecting ChatGPT to Skyscanner lets you search using plain English while bypassing cookie-based tracking. Users reported saving 8–20% compared to repeated...

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MCP server that lets agents get human opinions in real-time

Datapoint MCP is a tool that lets AI agents like Claude, GPT, and Gemini collect real human feedback during conversations — without switching platforms. Instead of relying on AI guesses about human preferences, agents can launch...

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346 Blog Posts To Learn About Computer Vision

HackerNoon compiled 346 free blog posts about Computer Vision, ranked by reader engagement. Topics range from AI image generation tools like DALL·E 2 and Stable Diffusion to practical tutorials on facial recognition, object...

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A new benchmark for testing LLMs for deterministic outputs

A new benchmark called SOB (Structured Output Benchmark) reveals a critical flaw in how AI language models are evaluated: passing JSON formatting checks doesn't mean the actual data values are correct. Testing 21 models across...

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Elon Musk accuses OpenAI of betraying charity mission in major US courtroom clash

Elon Musk is suing OpenAI for $150 billion, claiming the company betrayed its original nonprofit mission by shifting toward profit. Musk testified that he founded OpenAI specifically as a charity benefiting no individual, warning...

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ChatGPT/Gemini can now draw on your screen to help you navigate complex software

SketchVLM enables AI models to annotate images with arrows, labels, and shapes instead of text-only responses, making explanations clearer and improving reasoning accuracy by up to 28.5 points on tasks like navigation and object...

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Canonical's approach to AI is refreshingly thoughtful - Microsoft should take note

Canonical is taking a careful, user-first approach to AI in Ubuntu Linux 26.04, favoring open-source models, local on-device processing, and optional opt-in features rather than forcing AI on users. Unlike Microsoft, which pushes...

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