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Xavi Creus

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Technology, SaaS and AI, explained by someone who runs the numbers.

Long-form articles for CEOs, founders and investors. Plain language, real figures, sources you can check, and the operator's view on what to do about it.

AI18 September 20267 min read

What AI agents actually do for a business in 2026, and what not

In 2026 AI agents run support, back office, sales ops and code, with people on exceptions. What works, where they fail and how to start in 30 days.

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Latest articles

SaaS18 September 20266 min read

The one-person unicorn: how tiny teams run €1M+ companies with AI

A one-person unicorn is a tiny team's company that reaches €1M+ ARR with AI agents, a shared platform and automation. How it works and where it breaks.

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SaaS18 September 20267 min read

Is SaaS dead? What happens to software when AI can generate it

SaaS is not dead, predefined workflows are. Infrastructure SaaS survives, per-seat pricing fades and ephemeral software rises. What a founder must do now.

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AI18 September 20267 min read

How to choose an AI model: frontier, open-weight or local

Choose an AI model by task: frontier for judgement, mid-tier for volume, open-weight or local for privacy and EU residency. 2026 prices and framework.

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Technology18 September 20267 min read

MCP explained for CEOs: how AI connects to your company's tools

The Model Context Protocol (MCP) is the open standard that connects AI agents to your CRM, ERP, email and databases with 1 connector. What a CEO must ask.

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Technology18 September 20267 min read

GEO: how to get your company cited by ChatGPT, Claude and Gemini

Generative Engine Optimization (GEO) is how you get AI engines to cite your company. What they actually quote, how it differs from SEO and a checklist.

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AI18 September 20267 min read

AI in operations: where it really pays, with real numbers

AI in operations pays first in support, code and the back office. Realistic ranges for ticket deflection, time saved and cost per resolution, with sources.

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SaaS18 September 20267 min read

SaaS metrics every CEO must know: ARR, churn, NRR, CAC and LTV

SaaS metrics every CEO must know, each defined in 1 sentence, with 2026 benchmarks (median NRR 102%, CAC payback 16 months) and the 5 mistakes boards make.

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AI18 September 20267 min read

The EU AI Act for SMEs: what applies to your company and when

The EU AI Act for SMEs in September 2026: bans since 2025, transparency since August 2026, high-risk duties delayed to December 2027, and what to do now.

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Technology18 September 20266 min read

Vibe coding and AI coding agents: a guide for non-technical CEOs

Vibe coding is building software by describing it to an AI. What non-technical founders can build with Claude Code, Cursor or Lovable, and the risks.

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