AI Tutorials & Practice
收录 AI 工具教程、提示词、安装部署、配置指南、开发实战与可复现步骤。
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RepairVision: An Intelligent Repair Café Platform for Multimodal Fault Diagnosis and Sustainable Electronics Repair
Every week, perfectly fixable things end up in the bin. A kettle with a tripped fuse. A lamp with a...
Source: DEV Community
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Prompt Heist: I Built an Ancient-Kingdom Game That Teaches AI Security
I built Prompt Heist for the Hacktoberfest Hack Day (Coimbatore x Init Club and Idea Club). It is a...
Source: DEV Community
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700 manuscripts, 48 hours, three withdrawals. The verifier won.
OpenAI published hundreds of AI-produced math results before fully formalizing them. Two days later, three are gone — and that is the system working, not failing.
Source: DEV Community · OpenAI
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Web Components did not fail!
My comment to yesterdays Dev.to post: Web components failed. We can fix them became a full post: ...
Source: DEV Community
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My RAG system didn't need more agents. It never saw the evidence
GroundedDocs answers questions over a document set with exact citations and refuses when the evidence...
Source: DEV Community
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FloraQuest: Offline-First Trail Botanist & Wild Forager (Tuned with Tinker, Backboard Memory, Deployed on Render)
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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I showed AI the buggy code. Its tests started protecting the bug.
This is a submission for the Kaggle Benchmarking Challenge What I Benchmarked I've been a...
Source: DEV Community
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Your repo is not trusted context. What I changed after giving coding agents real repositories
I use coding agents across real repositories every day. I run a small security firm, and between...
Source: DEV Community
TutorialsOrdinary
Spellcheck can't fix "chai GPT": building an LLM caption checker on $5 a month
Here's a line from YouTube's auto-captions on a lecture about attention in neural...
Source: DEV Community · GPT
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I Benchmarked My AI Carb Counter on 400 Meal Photos: 8 Models, 1 Holdout Set
I build Soba, an iPhone app that looks at a photo of a meal and estimates the carbs in it. People...
Source: DEV Community
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Trailnote: Plan the Walk. Make the Note. Put the Phone Away.
🌿 Trailnote — An AI Trail Companion That Tells You to Put Your Phone Away My submission...
Source: DEV Community
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I built an AI browser extension in a month with an AI coding assistant. The code was the easy part.
Store reviews, users who couldn't reach the store, payments and analytics. What building a solo AI side-panel extension actually took.
Source: DEV Community
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I Built an AI Chinese Tutor That Actually Knows the HSK Syllabus
Most AI chat tools are terrible language tutors. Ask a generic chatbot to practice Chinese with you...
Source: DEV Community
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Enterprise SaaS Integration Checklist: APIs, SSO, Data & Monitoring
The biggest enterprise integration risk in 2026 is not AI. It is operational neglect. This week,...
Source: DEV Community
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A Benchmark Card Makes an Agent Score Auditable
A published coding-agent score describes one frozen task slice, and it does not describe an entire...
Source: DEV Community
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Seu classificador de intenções é 12 pontos pior em português: um benchmark de Laya, Strands Decider e embeddings Qwen3
Um benchmark reprodutível de pequenos modelos de decisão e de embeddings para classificar o objetivo do cliente em português do Brasil, e o que uma tradução paralela para o inglês revela sobre o custo do idioma.
Source: DEV Community · Qwen
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Your intent classifier is 12 points worse in Portuguese: benchmarking Laya, Strands Decider and Qwen3 embeddings
A reproducible benchmark of small choice deciders and embeddings for customer-goal classification in Brazilian Portuguese, plus what a parallel English translation reveals about the cost of language.
Source: DEV Community · Qwen
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From Finance to AI Engineering: 6 lessons I learned building a Multi-Agent Support system on Amazon Bedrock AgentCore
After ten years in asset management, I started a full-stack developer path in 2024 and spent my time...
Source: DEV Community
TutorialsOrdinary
I gave an AI my first app spec. It cut half of it and took the other half too literally
A native app on both stores, in five languages, built by one person with an AI as the developer. This...
Source: DEV Community
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Retrieval confidence can't tell your RAG chatbot when the answer is missing
I ran 65 questions against our own knowledge base and checked which ones the retrieved text actually...
Source: DEV Community
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AgriSensa Garden Studio: Spatial Precision Garden Planner with Open-Source AI & Digital Twin
"Design on your screen. Step outside with your tape measure. Touch the soil. Grow together." This...
Source: DEV Community
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From Job Scraper to Production AI System: Building ApplyLens AI
Job searching started feeling like a second job. I was jumping between different job sites and ATS...
Source: DEV Community
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To Retry or Not to Retry? That Is the Question.
This is a submission for the Kaggle Benchmarking Challenge Those who read my articles know that a...
Source: DEV Community
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Shipping faster with AI isn't engineering maturity. It's a demo that hasn't met year two yet.
Every AI rollout comes with a dashboard. PRs merged per week, time from ticket to prototype, model...
Source: DEV Community
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AgentToolEval: Grading How LLM Agents Use Tools, Not Just What They Answer
Written for: dev.to readers and the Kaggle Benchmarking Challenge judges. I kept your format and...
Source: DEV Community
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Why Multi-Agent Workflows Break in Production (And How to Build Predictable Loops)
Most multi-agent demos fail the moment you put them in front of real production traffic. They work...
Source: DEV Community
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I Turned 149k Messy Images into an Offline Recognition System
Training an on-device YOLO26n food detection model from scratch across multi-source datasets I set...
Source: DEV Community
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The True Cost of 50,000 Words: Why Most AI Voice Platforms Break Past 60-Second Clips
Beyond 30-second TikTok demos: A transparent cost and fatigue breakdown of rendering long-form...
Source: DEV Community
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Video Depth Estimation in the Browser: Building with WebGPU and Depth Anything V2
An ordinary video records color and motion, but it does not explicitly tell an editor which pixels...
Source: DEV Community
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I put seven LLMs on a USB stick. Here is everything that broke.
The idea fits in one sentence: plug a stick into any computer, double-click one file, and a real...
Source: DEV Community
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Vibe Coding in 2026: From “Just Prompt the AI” to Real Software Engineering
Vibe Coding in 2026: From “Just Prompt the AI” to Real Software Engineering AI has changed...
Source: DEV Community
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Building Panopticon: A Local-First CVE Intelligence Map with Tauri 2 + Rust + Python
Vulnerability triage today is browser tab soup. NVD in one tab. Vendor advisory in another. CISA KEV...
Source: DEV Community
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Every hype cycle leaves something behind. It is never what was promised.
Railways, fiber, Hadoop, blockchain, and what AI will actually leave behind once the bill comes due.
Source: DEV Community
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Python Won’t Die. Its Biggest Selling Point Might.
If AI writes the code, “easy to write” becomes a strange reason to choose a programming...
Source: DEV Community
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Best AI Image Generators in 2026: 12 Tools, Real Prices, and the Cost of One Image
Most "best AI image generator" lists compare monthly subscriptions. Almost none tell you what a...
Source: DEV Community
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Never Leaves: offline AI that drafts the quote while you are still under the house
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass ...
Source: DEV Community
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How Model Context Protocol (MCP) Actually Works: JSON-RPC 2.0, Stdio IPC, and Low-Level Tool Calling
A deep dive into how MCP works under the hood: JSON-RPC 2.0 framing, Stdio file descriptor pipes (FD 0/1/2), SSE transports, lifecycle handshakes, and token overhead.
Source: DEV Community
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Higgsfield API in Practice: Prompt to Editorial Photo, and the Defaults That Bite
Measured walkthrough of the Higgsfield generation API: one auth header, an async submit-and-poll lifecycle, a free /estimate call before you spend, a working Python client, and eight documented defaults that behave differently in productio…
Source: DEV Community
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Does compacting tool output lower a coding agent's API bill?
Coding agents resend old tool output on every turn, so replacing it with something smaller looks like...
Source: DEV Community
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AI Coding in Practice: Refactoring a Zero-Docs Microservice
A zero-docs production microservice, rebuilt in 13 steps with spec-driven AI coding: 10x coding time, 90% first-pass, zero incidents.
Source: DEV Community