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Anotações sobre engenharia de software, SEO, IA e vida freelance
Sep 19, 2026 · 9 min read
Claude API pricing, explained by the invoice and not the price list
Anthropic's price list tells you the rate. It doesn't tell you the invoice. Here's how to estimate before you build, and which lever cuts the bill the most.
- #Claude
- #Anthropic
- #LLM
- #Cost Optimization
- #API
Sep 19, 2026 · 8 min read
n8n self-hosted vs cloud: the cost nobody puts in the comparison table
n8n Cloud is predictable, self-hosted is cheap, and the real cost is the hours you didn't budget for. A break-even view and when not to use n8n at all.
- #n8n
- #Automation
- #Self-Hosting
- #Cost Optimization
- #DevOps
Apr 21, 2026 · 9 min read
RAG in production — what actually breaks, and why retrieval matters more than the prompt
A practical look at retrieval-augmented generation beyond the demo: chunking trade-offs, hybrid search, reranking, eval harnesses, and the cases where RAG is the wrong tool.
- #RAG
- #Claude
- #LLM
- #Retrieval
- #Vector Search
- #Production
Apr 20, 2026 · 8 min read
Cutting Claude API costs 40-70% with prompt caching (and when it doesn't help)
A practical guide to Anthropic's prompt caching — what actually hits the cache, cost math with real examples, and the cases where caching does nothing or even hurts.
- #Claude
- #Anthropic
- #LLM
- #Prompt Caching
- #Cost Optimization
Dec 13, 2019 · 1 min read
Docker Compose Error
docker-compose version discrepancies
- #WordPress
- #Docker