Claude models explained: Haiku, Sonnet, Opus and Fable, which one to pick and what each costs
Haiku, Sonnet, Opus and Fable: what each Claude model is for, what it costs through the API and which plan includes it.
Resources
AI and privacy: how to turn off training on your data, tool by tool
On consumer plans, most AI assistants can use your conversations to train their next models unless you opt out in the settings. On most business plans it works the other way around: the vendor commits not to do it by default. In a company, everything depends on which account each person uses the tool with. … Read more
AI training register: a Word template and a 45-minute session for Article 4 of the AI Act
Since February 2, 2025, every company that uses an AI tool in its business has had to take steps to build its team’s AI literacy. That is Article 4 of the EU AI Act, rewritten in July 2026. The European Commission says no certificate is needed: an internal record of training sessions and other actions … Read more
Entity SEO: getting Google and AI assistants to recognize your company
Entity SEO means giving Google, and the assistants that answer from the web, a description of your company that they cannot confuse with another one: a name, a website, official identifiers and profiles that corroborate each other. When Google has enough consistent information, it can show a knowledge panel, the box that sums up an … Read more
Search Console indexing statuses: every label explained, how serious it is and how to fix it
The Search Console “Page indexing” report sorts every URL Google knows into two groups: indexed or not indexed. For each page that isn’t indexed, it gives a reason, as a short label such as “Crawled – currently not indexed” or “Page with redirect”. Some of these labels point to a fault to fix, while others … Read more
Agent-ready websites: WebMCP, NLWeb, Markdown and an audit checklist
An AI agent is software that visits your website on someone’s behalf: it reads your pages, compares your offers and fills in your quote form. Making a site “agent-ready” means making sure that visit succeeds, with content a machine can read, forms that leave no room for guessing, clear rules for bots and, later on, … Read more
AI use policy for your company: a free Word template and a 5-question generator
Your employees already use ChatGPT, Claude, Copilot or Gemini, with or without your approval. An AI use policy puts the rules in writing: which tools, which accounts, which data, and what gets reviewed before it goes out. This page gives you a free Word template in ten articles, a generator that adapts the text to … Read more
llms.txt: what the file does, who actually reads it, and a template ready to copy
The llms.txt file is a plain text file written in Markdown and published at yoursite.com/llms.txt. It introduces your site in a few lines and lists the pages an AI assistant should read first to answer a question about you. Jeremy Howard, cofounder of Answer.AI and fast.ai, proposed it on September 3, 2024. It is still … Read more
Newsletter sponsorship: setting your rates, building your rate card and selling your slots
A sponsored slot in a newsletter is almost always sold at a flat rate, per issue, and that flat rate is calculated from a CPM, the price per 1,000 opens (or per 1,000 subscribers, depending on the seller). The formula fits on one line: active subscribers, multiplied by your open rate, divided by 1,000, multiplied … Read more
GTM engineering for a small business: the role, the tools, recipes and the GDPR rules
GTM engineering is the work of building a company’s sales machine with data, automation and AI: finding the right accounts, enriching them, spotting the right moment to contact them, preparing the message and storing it all in the CRM. A GTM engineer is the person who builds and maintains these workflows. This guide takes the … Read more