📰 Dev.to · Dr Hernani Costa
Articles from Dev.to · Dr Hernani Costa · 30 articles · Updated every 3 hours · View all reads
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⚡ AI Lessons (10183)
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Dev.to · Dr Hernani Costa
2d ago
AI Operating Models: The $2M Workflow Redesign Your Board Isn't Asking About
Your company is becoming a software factory whether leadership acknowledges it or not. The question...
Dev.to · Dr Hernani Costa
3d ago
Tokens per Approved Outcome: The AI KPI That Replaces Headcount
Most companies are measuring AI productivity with the wrong dashboard—and it's costing them...
Dev.to · Dr Hernani Costa
4d ago
EU CEO AI Execution: From Pilots to Operating Model
The next 12 months will separate AI tourists from AI operators—and your competitive position depends...
Dev.to · Dr Hernani Costa
1w ago
AI Pilots Never Ship: The Operating Model That Does
Most EU SMEs treat AI adoption like a tool trial, not a business transformation—and that's why 80% of...
Dev.to · Dr Hernani Costa
1w ago
Token Strategy for EU SMEs: The AI Economics Shift
European companies treating AI as software procurement are already behind. The real competitive...
Dev.to · Dr Hernani Costa
1w ago
OpenRouter Multi-Model Routing: Vendor Lock-In vs. Strategic Flexibility
Most teams treat model access as a binary choice. That's the $500K mistake. When your AI...
Dev.to · Dr Hernani Costa
1w ago
Claude Stack Architecture: Review vs. Execution vs. Routing
When teams treat Claude Desktop, CLI, and OpenRouter as interchangeable tools, they create technical...
Dev.to · Dr Hernani Costa
1w ago
MCP Protocol: The $2M Integration Debt Trap
Context fragmentation costs EU SMEs an average of $2M annually in lost productivity and manual...
Dev.to · Dr Hernani Costa
2w ago
LangGraph vs. LangChain: Production AI Architecture 2026
Your orchestration framework choice determines whether your AI system scales or becomes technical...
Dev.to · Dr Hernani Costa
2w ago
Agentic AI Isn't a Script: Why Production Fails
Most companies don't fail with agentic AI because models are weak. They fail because they treat...
Dev.to · Dr Hernani Costa
2w ago
Dify vs n8n: Architectural Roles for Low-Latency AI
Choosing between Dify and n8n isn't a tool decision—it's an architectural one that directly impacts...
Dev.to · Dr Hernani Costa
2w ago
Hybrid AI Workbench: The $10M Exit Asset CTOs Miss
When Private Equity firms evaluate AI-driven companies in 2026, they're no longer asking "Does it use...
Dev.to · Dr Hernani Costa
4w ago
Time-Series LLMs: The $50k Health Intelligence Gap
Your wearables are generating 10,000 data points daily. Your doctor sees one number per quarter. That...
Dev.to · Dr Hernani Costa
4w ago
Fine-Tuned Small Models Beat RAG: The 2026 Economics
When your support team processes 10,000 tickets monthly, the difference between a $0.001 and $0.1...
Dev.to · Dr Hernani Costa
1mo ago
Health Wearable LLM: Fine-Tuning Over RAG for Coaching
When Garmin, Oura, Whoop, and CGM data streams collide with generic chatbot APIs, you get generic...
Dev.to · Dr Hernani Costa
1mo ago
Claude Code + MCP: Revenue Systems at Engineering Speed
Most developer-led go-to-market strategies fail because marketing stays siloed from engineering. When...
Dev.to · Dr Hernani Costa
1mo ago
Programmatic SEO Without Sacrificing Brand: The Living Website
Your newsletter thrives on authenticity. Your business needs search traffic. Most founders destroy...
Dev.to · Dr Hernani Costa
2mo ago
AI Learning Roadmap: 9 Free University Courses to Master AI in 2025
The Complete AI Learning Roadmap: 9 University Courses to Master Artificial Intelligence in...
Dev.to · Dr Hernani Costa
2mo ago
Token Limits & Pricing: When to Use Large Context Models
Understanding Token Limits, Pricing, and When to Use Large Context Models Large language...
Dev.to · Dr Hernani Costa
2mo ago
Text-to-LoRA & AReaL: AI Builder Breakthroughs
Text-to-LoRA & AReaL—Two Quiet Breakthroughs Every AI Builder Should Know By Dr....
Dev.to · Dr Hernani Costa
2mo ago
From Code to Customer: A Tech Leader's Marketing Awakening
From Code to Customer By Dr. Hernani Costa — April 16, 2025 A Techie's Marketing...
Dev.to · Dr Hernani Costa
2mo ago
Anthropic's Free Prompt Engineering Course for Developers
Anthropic's Free Prompt Engineering Course: AI Skills Boost By Dr. Hernani Costa — June...
Dev.to · Dr Hernani Costa
3mo ago
dots-ocr: Open-Source OCR Outperforms Giants for Multilingual Automation
Open-Source OCR Breakthrough: How dots-ocr Outperforms Giants for Accurate, Multilingual...
Dev.to · Dr Hernani Costa
3mo ago
Local LLMs for Laptops 2026: Run Qwen, Llama, SmolLM
If you take one idea from my SLM piece, it's this: you don't need a 100B cloud model to get real...
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