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Notes from building ChatFrom.

What we measure, what we learn running agents built from a company's own knowledge, and what changes in the product.

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The cover shows the title, How to build an AI chatbot, with the line with LangChain, RAG and a tool loop below it, on a grey-cream background with fine crossing lines.
12 min read

How to build an AI chatbot with LangChain and RAG

I build a RAG chatbot with LangChain in one Python file and explain each part, from chunking and retrieval to the tool-calling loop and streaming.

Read it The cover shows the title Tidio alternatives, with the line for small businesses, on price, on a grey-cream background with fine crossing lines.
13 min read

Tidio alternatives: what each one costs a small business

Tidio charges for its AI on top of its plans, and the bill can grow during the month. I worked out what eight alternatives would cost a small business instead.

Read it The cover shows the title, Which AI model makes things up, with the line six models and 900 support answers below it, on a grey-cream background with fine crossing lines.
14 min read

Which AI model makes things up? I tested six for support

I tested six AI models on the same customer support questions to see which ones make things up. Only Mistral did, and Claude Haiku gave the best value.

Read it The cover shows the title WhatsApp AI chatbot, with the line setup and real costs for a business, on a gray-cream background with fine crossing lines.
12 min read

WhatsApp AI chatbot for business: setup and real costs

How to put an AI chatbot on your business's WhatsApp number, what Meta charges for each reply, and what a month costs in different countries.

Read it GPT-6.1 Terra for support, against Luna, Sol, Haiku and Sonnet, on a gray-cream background with fine crossing lines.
12 min read

GPT-6.1 Terra review: tested as a customer support chatbot

I asked GPT-6.1 Terra 46 customer support questions next to four other models. It answered well, but GPT-6 Luna did just as well for a fraction of the cost.

Read it The cover shows the title ChatFrom vs Zendesk: price, AI and when you need a help desk, on a gray-cream background with fine crossing lines.
10 min read

ChatFrom vs Zendesk: price, AI and when you need a help desk

A small support team can pay $577 a month for Zendesk once its AI agent is added. ChatFrom answers the same questions for $29, alone or in front of Zendesk.

Read it The cover shows the title Gorgias alternatives for small Shopify stores, on a gray-cream background with fine crossing lines.
12 min read

Gorgias alternatives for small Shopify stores

What Gorgias costs a small Shopify store each month, and what seven alternatives cost instead, from Shopify's free inbox to full help desks.

Read it The cover shows the title Ecommerce chatbot for Shopify, with the line orders, returns and what it costs, on a gray-cream background with fine crossing lines.
9 min read

Ecommerce chatbot for Shopify: orders, returns and cost

An ecommerce chatbot answers your shop's customers at any hour, from order tracking to returns. Here is how it works with Shopify and what it costs.

Read it ChatFrom vs Chatbase: price, models and hosting, on a gray-cream background with fine crossing lines.
12 min read

ChatFrom vs Chatbase: price, models and hosting

ChatFrom or Chatbase? Here is how the two compare on price, AI models, channels, tools and where your data is kept.

Read it Knowledge base chatbot: how it works, and what it costs, on a gray-cream background with fine crossing lines.
10 min read

Knowledge base chatbot: how it works and what it costs

A knowledge base chatbot answers customers from your own documents, in their language and with the source shown. Here is how it works and what it costs.

Read it ChatFrom vs Intercom Fin: price, channels and setup, on a gray-cream background with fine crossing lines.
12 min read

ChatFrom vs Intercom Fin: price, channels and setup

I compared ChatFrom with Intercom's Fin on price, channels, setup, tools and hosting, using Fin's published prices and ChatFrom's measured answer costs.

Read it The cover shows the title, Testing OpenAI's Decisions API, with the line against Jev and four LLMs below it, on a grey-cream background with fine crossing lines.
9 min read

Testing OpenAI's Decisions API for chatbot intent routing

I ran my 30-message routing test again with OpenAI's new Decisions API, Jev, GPT-6 Luna and three other models, for accuracy, speed, cost and confidence.

Read it The cover shows the title, Testing Jev and six LLMs, with the line on 30 chatbot messages below it, on a grey-cream background with fine crossing lines.
13 min read

Testing Jev and six LLMs for chatbot intent routing

I tested Jev and six LLMs from OpenAI, Anthropic and DeepSeek on 30 chatbot messages. Here’s what I learned about accuracy, speed, cost and confidence.

Read it