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The same AI failure should not happen twice. But it does. Teams fix it, change something small, and it returns silently. We built Agent Fail Museum to document these patterns permanently. Submit one sentence about a failure you have seen. Get a regression test draft back. Anonymous by default.If you have built any AI project that broke after a change, your failure probably fits one of the 10 known patterns already in the archive. submitted by /u/taimoorkhan10 [link] [留言]

In the previous article , we started with a brief introduction to tensors . In this article, we will explore why tensors are useful . Why Tensors Matter Unlike normal scalars, arrays, matrices, and multi-dimensional matrices, tensors are designed to take advantage of hardware acceleration . Tensors do not just store data in different shapes. They are also designed to perform mathematical operations on that data efficiently and quickly . Tensors and Hardware Acceleration Tensors can take advantage of GPUs (Graphics Processing Units) , which many of us use in our day-to-day devices. GPUs are very good at performing many mathematical calculations in parallel, making them useful for training neural networks. There is also specialized hardware called TPUs (Tensor Processing Units) . TPUs are specifically designed to work with tensors and help neural networks run even faster. Automatic Differentiation Another important use case of tensors is in backpropagation . In neural networks, we estimate the optimal weights and biases using backpropagation. This process requires calculating many derivatives and applying the chain rule . Instead of manually calculating all these derivatives, tensor frameworks can handle this automatically using something called automatic differentiation . This means that even as neural networks become more complex, tensors help manage the difficult mathematical calculations behind the scenes. So that is it for tensors. In the next article, we will explore another topic AI agents write code fast. They also silently remove logic, change behavior, and introduce bugs -- without telling you. You often find out in production. git-lrc fixes this. It hooks into git commit and reviews every diff before it lands. 60-second setup. Completely free. Any feedback or contributors are welcome! It's online, source-available, and ready for anyone to use. Give it a ⭐ star on Github

Large corporations are going to use AI regardless of what the public thinks. They have the money, lawyers, infrastructure, and data to do it. AI isn’t going away for them. But who gets hurt most when ordinary people are told not to use AI? The small business owner who can’t afford an artist to create a logo. The startup founder who can’t hire a copywriter to proofread every email. The family business that can’t pay an accountant for every tax question. The entrepreneur who can’t afford a programmer to build a website or a consultant to review a business plan. For the first time in history, a person with a good idea and a laptop can access tools that were previously reserved for companies with large budgets. I’m not saying AI is perfect. It makes mistakes, and there are legitimate concerns about its environmental impacts. But I do wonder: if AI dramatically lowers the cost of expertise, who stands to lose the most from that? The average person—or the organizations that have always had exclusive access to that expertise? Is the anti-AI push really just a push from big corporations to cut out those who stand the most to gain: small business owners? submitted by /u/Outlasttactical [link] [留言]

The Problem We Were Actually Solving Our event platform at Veltrix ran a treasure hunt game that gave users real-world rewards. It started as a simple Rails app with a PostgreSQL counter column for each hunt. By 3 AM on Black Friday, that counter column became a single point of failure. Every leaderboard update blocked the entire leaderboard query because PostgreSQL row-level locks escalated to table-level for SERIAL columns. Our error rate jumped from 0.2% to 18% under 2000 concurrent writes. The system didnt just slow down; it started failing writes with could not serialize access due to concurrent update deadlocks. We lost $47K in rewards payouts before we could scale up the database. What We Tried First (And Why It Failed) Our first fix was to shard the PostgreSQL counter by hunt ID, splitting the hot row into 1024 partitions. That reduced the lock contention, but introduced new problems. Each hunt now needed its own sequence, and our Rails code had to route writes to the correct shard. The shard routing introduced 400ms extra latency on leaderboard queries because we had to union results across 1024 tables. Meanwhile, PostgreSQL sequences had gaps up to 1024 when nodes restarted, so our reward payouts were off by thousands on high-traffic hunts. Our Redis cache didnt help because the leaderboard queries were point lookups against 1024 tables, and Redis couldnt pipeline those efficiently. The Architecture Decision We ripped out the PostgreSQL counter and replaced it with a Kafka Streams-based event sourcing system called HuntStream. Every hunt action (point earned, reward claimed) became an immutable event in a Kafka topic. We built a materialized view on top of RocksDB that consumed the topic and maintained the current leaderboard state in memory. The materialized view was partitioned by hunt ID, which meant leaderboard queries only hit one RocksDB partition per hunt. We used RocksDBs built-in caching to keep hot leaderboards in memory, and fall back to disk fo

The best AI tools for conversion rate optimization (CRO) in 2026 are the platforms that continuously...

I've been working on something others might find interesting. It's under heavy development as I learn. Most AI agent setups treat the model like a better autocomplete — paste a prompt, get output, hope it's right. That works for small tasks. It falls apart when you try to use agents for sustained work across sessions: they skim specs, declare victory at 60%, burn context on noise, silently resolve ambiguity without surfacing it, and mark checklist items done without actually doing them. The failures are predictable and nameable — so I named them. This is a white paper and implementation guide for a full-stack agentic system — everything from planning through promotion under structural enforcement. It documents 24 failure modes from months of multi-agent operation and, for each, describes what actually prevents it: some through mechanical gates the agent cannot skip, some through procedural skills, and some through human supervision. The guide covers how to structure specs, plans, and verification so that agent work is evidence-led rather than vibes-led, how to use MCP capability surfaces as structural levers, and how the failure modes apply regardless of which model or vendor you use. The white paper also includes a Related Work section that positions it against the emerging industry consensus — CodeRabbit, Anthropic, Spotify, Cloudflare, OpenAI, Karpathy, Thoughtworks, and academic research all independently arrived at pieces of the same conclusions. The difference here is the integrated stack: a failure taxonomy mapped to prevention mechanisms, a three-layer enforcement architecture, and a concrete reference implementation with an orchestrator, task graphs, step verification, adversarial review, and model stratification. White paper: https://gitlab.com/naive-x/naive-artifact-coding/-/blob/main/white-paper.md Reference implementation: https://gitlab.com/naive-x/naive-artifact-coding/-/blob/main/docs/reference-implementation-guide.md Implementation guide: https://gi

submitted by /u/Hot-Upstairs9603 [link] [留言]

The enterprise AI search startup tripled its annual revenue even as tech giants entered the category.

Hoje eu postei sobre o Mark Zuckerberg lançar a notícia mais patética que vai cobrar 19 dólares para desbloquear o Muse Spark Pro kakakakakakaka Quem vai pagar por essa merda? Mas pensando melhor bem... Talvez eu pague Eu usei muito esse modelo como Early adopter, desde quando o motor era o Llama 3.2 e sendo inferior as outras consegui extrair escrita criativa que batia de frente com Claude em personas graças ao seu RAG no ecossistema da Meta, que tinha uma criatividade absurda quando você forçava ela a consultar as redes sociais e ver como pessoas agem e comentam, porém lançou o Muse Spark que era tipo o GPT 5.2 dos Llamas kkkkkk aí só usei para pesquisa e bem... Minha tese sobre o Muse Spark é que pra mim o problema nunca pareceu ser burrice. Parece CONTENÇÃO. Não dá vibe de modelo incapaz ou inferior. Dá vibe de modelo sendo sufocado em tempo real. Porque se você presta atenção, ele: - pesquisa rápido pra cacete (Já que cada agente pesquisa uma coisa) - alucina menos em busca (pois o modelo refina a busca dos agentes, muitas vezes consegui resultados mais confiáveis que o Gemini) - já trabalha com esquema multi-agente herdado da Manus ( o trunfo dessa IA é que diferente das outras ela não comprimi seu input, ela usa agentes para cada um pesquisar cada trecho dele, o resultado é mais completo) - acha informação boa (ela pesquisa tanto na internet quanto em grupos de Facebook ou Threads se você forçar no prompt, ou seja análises de Devs>>> Wikipédia Inclusive acredito que foi por isso que o Mark lançou o "Fórum" o app que cópia o Reddit, ele quer treinar a IA com isso, o Reddit pra mim seria a fonte perfeita pra qualquer IA se aprofundar além do que pesquisar genéricas no Google, o filha da puta do Mark é rico e filantropo e faz uma cópia só para treinar a IA dele) - conecta coisa rápido (os agentes pesquisam rápido, o modelo revisa rápido, a entrega é bem rápida e gasta bem menos tokens) Só que na hora de responder… Parece o GPT free kkkkkkk O raciocínio corta no

Hey Dev.to the community, I'm Ashwin Gururaj — a Data Scientist & AI Engineer based in Melbourne, Australia, currently open to full-time, contract, and internship opportunities. I specialise in building production-grade AI systems — not just notebooks and demos, but end-to-end pipelines that actually run in production. What I work with: Python · LangChain · LangGraph · FastAPI · RAG pipelines · pgvector · Multi-agent systems · LLMs · Groq · HuggingFace · Pydantic · Docker · Celery · Redis · PostgreSQL · Data Science · SQL · Pandas · Scikit-learn What I've built recently: Sift — an open-source multi-agent fact-checking pipeline. Takes any text, extracts every factual claim, retrieves grounded evidence via HyDE RAG + live web search, and returns auditable verdicts with cited sources. Built with LangGraph, pgvector, FastAPI, and Docker. → GitHub Open to: Full-time Data Scientist / AI Engineer / ML Engineer roles Remote or Melbourne-based Companies building serious AI products If you're hiring or know someone who is — I'd genuinely appreciate a connection. GitHub: https://github.com/ashg2099 LinkedIn: https://www.linkedin.com/in/ashwin-gururaj-93943816a/ Thanks!

Everyone can build it. Almost no one can afford to run it at scale. And the companies selling the picks and shovels are about to get undercut by the same forces they unleashed. by VEKTOR Memory — 20 min read How This Article Started: 20 Forums, 40 Headlines, and a Growing Sense That Everyone Was Confused I woke up to clear skies and the sun finally shining, and I set out to understand this idea, the truth behind it, and the nagging suspicion that the narrative around AI and software costs had become so loud, so uniform, and so confidently confusing that someone needed to sit down and actually go through it. No tweets, or are they now X's? No LinkedIn thought leader infomercials, no Substack hype, just actual research and deep thoughts. So I spent time reading, collating data. Forums, whitepapers, LinkedIn posts, Hacker News threads, VC essays, Reddit arguments. I went looking for the real signal underneath the noise. What I found instead was the full spectrum of human overconfidence, lots of moat real estate. On one end: the hype machine at full throttle. “Software is going to zero.” “A solo dev can now build what a 50-person team built in 2021.” “The era of the $500/month SaaS subscription is over.” “Vibe coding will replace your entire engineering org.” These headlines were everywhere. Breathless. Confident. Shared tens of thousands of times, this angle gets views, of course, the algorithm loves being fed claps, shares, comments, and reposts. Most were written by people who had a very good Tuesday with Codex, Windsurf, Claude and Cursor and decided that instant dev, open source to Github and getting oodles of stars, maybe even roping in a celebrity, was now the permanent condition of software development. “We are now famous on GitHub!" Very hipster, very vibes, see you on the playa.. On the other end: the backlash. Experienced engineer, people with 15 to 25 years in production systems are pushing back hard. “Show me the vibe-coded app that survived its first real

I Built a Local AI Agent That Thinks Like a Brain, Not a Database Most AI agents today are sophisticated autocomplete engines. Ask them something, they answer. Ask again in a new conversation, they start from zero. The context window is the only memory they have. Serenity is different. It's a fully local AI agent that encodes experiences the way biological brains do — semantically clustered, causally structured, and self-organizing. No cloud. No API calls to a vector database. No data leaves your machine. Ever. The Core Problem with Current AI Memory The standard approach to AI memory is essentially a hack: you stuff embeddings into a vector DB, do nearest-neighbor retrieval, and dump the results into the prompt. It sort of works. But it's not how brains work. Your brain doesn't search for memories. When one fires, related ones light up automatically. Serenity's architecture — called S.E.R.A (Semantic Experience Reasoning Agent) — tries to bridge that gap. Here's the key difference: Traditional Approach Serenity Vector search on embeddings Semantic node activation Prompt-injected context Persistent working memory One-shot retrieval Emergent recall via association Static embeddings Pruned & crystallized over time How It Works: The Neural Node Network At the core is the Neural Node Network (NNN) . Instead of storing facts in isolation, Serenity encodes experiences in causal format: ACTION → BEFORE → OUTCOME → AFTER When she learns something, she doesn't file it in a folder. She finds where it semantically belongs in a web of related concepts. Similar things cluster together — the same way neurons that fire together wire together. Then the abstraction layer kicks in. Three or more related concepts crystallize into a higher-order node: the thing they all have in common that none of them says directly. Those nodes bundle into pathways. Those pathways grow into domains. She also has inhibitors and pruning — weak connections get cut so strong ones sharpen. Her knowledge ge

Startup Battlefield applications are due tomorrow, so now's the time to put the finishing touches on your submission!

submitted by /u/armend7 [link] [留言]

Audi has developed an entirely new electric torque-vectoring rear differential.

🌟 Announcing the 2nd Workshop on Social Simulation with LLMs (Social Sim'26) @ COLM 📣 Welcoming Submissions! Submission here:. 🗓️ Deadline: June 23, 2026 (AoE) This year's theme is "Fidelity in Applications”, moving beyond compelling demos toward evaluation, robustness, interpretability, and empirical grounding of LLM-based simulated societies. 💬 Topics include (but aren't limited to): 🔹 Simulation evaluation & fidelity 🔹 Validation against real-world social data 🔹 LLM-based agent modeling 🔹 Persona modeling 🔹 Cultural evolution 🔹 Information diffusion in simulated populations 🔹 Human–AI hybrid simulations 🔹 Simulation interpretability 🔹 Applications: governance, platform design, societal risk analysis 🔹 Ethical, societal & policy implications of large-scale simulated societies 🤝 We invite perspectives from ML, social science, psychology, and policy — anyone building, validating, or reasoning about LLM-driven simulated societies. Hope to see you in SF! 🌉 submitted by /u/RSTZZZ [link] [留言]

RAG SOTA: I Tested 7 Pipelines and Built SEQUOIA (Open Source) After 20+ hours of compute time on local hardware, I benchmarked 7 RAG configurations against real-world tasks. SEQUOIA (RAPTOR tree + step-back prompting) consistently outperformed alternatives. The Full Pipeline List Method Core Approach No-RAG Direct LLM generation Classical RAG Dense retrieval (BGE-small + FAISS) Hybrid RAG BM25 + Dense + RRF + reranker LightRAG Key-value graph + dense hybrid PageIndex Two-stage hierarchical retrieval GraphRAG Entity graph + dense fallback Agentic RAG Multi-step reasoning pipeline SEQUOIA RAPTOR tree + step-back prompting SEQUOIA Pro Multi-query + rerank + compression Why LightRAG Underperformed The hype suggested graph-based RAG would revolutionize retrieval. On real banking documents and technical manuals: Graph construction is expensive (entity extraction, relationship mapping) Retrieval quality did not justify the overhead Academic benchmarks do not equal production reality Why RAPTOR Works Recursive Abstractive Processing for Tree-Organized Retrieval: Cluster leaf nodes (individual chunks) Summarize upward (hierarchical abstraction) Retrieve at multiple levels (specific details + high-level context) This mirrors how humans organize knowledge. Step-Back Prompting: Free Performance Before retrieving, generalize the query: User asks: "What's the error rate for Q3?" Step-back: "What metrics are tracked quarterly?" Retrieve broader context first, then narrow Result: ~15% improvement in recall. Zero latency cost. SEQUOIA Architecture User Query Step-back Prompting (generalize) RAPTOR Tree Retrieval (multi-level) Context Compression (summarize long contexts) Re-ranking (cross-encoder) Local LLM Generation Local LLM Evaluation I used a local model weaker than GPT-4 for judging. Key finding: relative rankings between methods stayed consistent even with a weaker evaluator. You can prototype and compare approaches without burning API credits on GPT-4 evaluations. Productio

Fine-tuning tests show "bias ... toward confidently representing the claims as true."

As AI agents move from experiments to production, AWS, Cloudflare, and others are redesigning cloud infrastructure for a future dominated by machine-generated internet traffic instead of human users.

I was dealing with another "output not usable" issue today in our app, user left a comment saying that no matter what he does the agent returns the result in the wrong format. It took me hours to identify the mistake and AI model missed it. Curious to hear your stories about the times you shipped a feature in your AI product and it flopped. How did you figure out what was actually going wrong? What tools if any did you use? What metrics were key? submitted by /u/pauliusuza [link] [留言]