AI Toolkit Cheat Sheet

A practical guide to AI tools, costs, and resources for small business owners and solopreneurs.

Crystallized Intelligence + Claude · Last Updated April 2026

Section 01

Low-Code Workflow Platforms

Build AI-powered automations visually — no need to learn Python, LangChain, or any programming framework. Drag, drop, connect.

PlatformPricingSelf-Hosted?Best ForEU Notes
n8nFree (self-hosted), Cloud from €24/moTechnical users who want full control; 400+ integrationsCan be self-hosted on EU servers
MakeFree tier, then from €10.59/moVisual thinkers; great UI, strong app ecosystem🇨🇿 EU data centres available
PipedreamFree tier, then from $29/moDevelopers comfortable with light codeUS
ZapierFree tier, then from €19.99/moBeginners; simplest interface, 7,000+ appsUS, some EU processing
ActivepiecesFree (self-hosted), Cloud from $5/moOpen-source Make alternative; growing fastCan be self-hosted on EU servers
Recommendation: Start with Make if you want ease of use with EU data residency. Move to n8n when you need more control.

Section 02

API Routers & Orchestrators

A single gateway to access multiple AI models. One API key, switch between models easily, and keep your data in the EU.

PlatformWhat It DoesPricingEU Compliance
EUrouterEU-sovereign AI routing; drop-in OpenRouter replacementPay-per-use🇪🇺 Data stays in EU
Requesty EU140+ models, zero cross-border transfer, Frankfurt-hostedPay-per-use🇪🇺 GDPR Art. 44, ISO 27001
EuqaiEU-native router with intelligent model selectionPay-per-use🇳🇱 Hosted in Netherlands
OpenRouterLargest model selection (200+)Pay-per-useNote: EU routing by request only
Why use a router? You avoid vendor lock-in, can compare models easily, and European routers keep your data within EU borders — important for GDPR compliance.

Section 03

Best AI Models by Task

You don't need the biggest model for every job. Here's what works best for common small business tasks, as of February 2026.

General Text (emails, summaries, content drafts)

ModelProviderApprox. CostNotes
Mistral Medium 3.1Mistral AI 🇫🇷~$0.40 / 1M inputBest European option; strong multilingual
Mistral Small 3.2Mistral AI 🇫🇷~$0.10 / 1M inputGreat for simple tasks; European language fluency
Claude Sonnet 4.6Anthropic 🇺🇸~$3.00 / 1M inputExcellent for nuanced writing and analysis
GPT-4o miniOpenAI 🇺🇸~$0.15 / 1M inputCheapest "good enough" option

OCR (Reading documents, invoices, scanned PDFs)

Model / ServiceTypeBest For
Mistral OCR 3API (commercial) 🇫🇷Best all-round document understanding
Google Document AIAPI (commercial)Strong layout detection
Azure Document IntelligenceAPI (commercial)Best for invoices and forms
PaddleOCR 3.0Open SourceSelf-hosted, 100+ languages, free
olmOCR-2-7BOpen SourceState of the art for scanned docs

Speech-to-Text (Transcription)

Model / ServiceTypeBest For
Whisper Large V3 TurboOpen SourceBest overall open-source STT; 50+ languages
Deepgram Nova-3API (commercial)Best real-time; lowest latency
ElevenLabs Scribe v2API (commercial)99 languages, excellent diarisation
Google Chirp 3API (commercial)100+ languages
NVIDIA Canary-Qwen-2.5BOpen SourceLowest word error rate (5.63% WER)

Section 04

What Does AI Actually Cost?

Real examples with real numbers. Spoiler: it's probably less than you think.

AI API costs are measured in tokens (chunks of text). Rough guide: 1,000 tokens ≈ 750 words. A typical email is about 200–400 tokens.

Weekly Event Digest

Process 20 event descriptions, generate categorised summary

~$0.05/year
Using Mistral Small 3.2

Customer Email Summarizer

Process 50 emails/day, generate daily summaries

~$3.60/year
Using Mistral Medium 3.1

Transcribe a 1-Hour Meeting

Whisper (self-hosted): Free
Deepgram Nova-3: ~$0.46/hr
OpenAI API: ~$0.36/hr

Free – $0.46
Depends on provider
Bottom line: For most small business use cases, AI API costs are negligible — often less than a coffee per month. The real cost is your time building and maintaining the workflows.

Section 05

Low-Code Web & App Builders

Need a frontend for your AI workflow? These let you create web apps, portals, and dashboards without coding.

PlatformStarting PriceBest ForConnects To
SoftrFree, then $49/moClient portals, internal tools, simple web appsGoogle Sheets, Notion, Xano
WeWebFree, then €29/moMore design control; beginner-friendlySupabase, Xano, REST APIs
Recommendation: Start with Softr — it's the fastest path from idea to working app.

Section 06

European AI Resources & Directories

ResourceWhat It IsLink
European AI AtlasDirectory of EU-made AI tools and servicesaiatlas.eu
AI4Europe (AIoD)EU-funded AI-on-demand platformai4europe.eu
Mistral AILeading European LLM provider 🇫🇷mistral.ai
InfomaniakSwiss hosting with built-in AI tools 🇨🇭infomaniak.com
LuxinnovationLuxembourg's national innovation agencyluxinnovation.lu

Section 07

Learning Resources

ResourceWhat You'll LearnFormat
Elements of AIThe fundamentals of AI — what it is, how it works, where it's goingFree online course 🇫🇮
promptingguide.aiHow to write effective promptsFree online guide
n8n.io/coursesBuilding workflows in n8nFree video courses
CI NewsletterCurated AI news for businessDaily email
crystallized.lu/gemsAI concepts explained simplyBlog posts
make.com/academyMake platform tutorialsFree courses
Mistral AI DocsUsing Mistral's models and APIDocumentation

Section 08

Quick Decision Guide

Pick what you want to do, get a starting point.

"I want to automate a repetitive task" Make or n8n + an AI model

Start by picking a single task that's eating your time — sorting incoming emails, tagging leads, copying data between Google Sheets and your CRM, generating weekly reports. Don't try to automate everything at once.

In Make or n8n, you build the workflow visually: a trigger (new email, form submission, scheduled time) → a processing step that calls an AI model to classify, summarize, or draft → an action (update the sheet, send a Slack message, file the document). Make is friendlier for beginners and has EU data centres. n8n gives you more control and can be self-hosted on your own EU server for full data sovereignty.

Both have free tiers that are enough to get started. A typical first workflow takes 30–60 minutes to build and saves several hours per week from day one.

Non-technical shortcut: you can ask an AI chat (Claude.ai or Mistral Le Chat) to build the whole workflow for you as an importable JSON file. Describe in plain English what you want — what triggers it, what data to pull, what the AI should do with it, where the result goes — and ask for the finished n8n JSON. Then in n8n: open a new workflow → click the menu → Import from File (or paste the JSON directly onto the canvas). The entire workflow appears with nodes pre-wired, ready for you to plug in your credentials.

Example prompt you can copy, paste, and adapt:

I want to build a workflow in n8n that helps me keep track of what's happening in Luxembourg's networking scene, so I don't have to check the Network website every week.

Here's what I'd like it to do:

  1. Go to https://thenetwork.lu/events/events-calendar/ and grab the page.
  2. Pull out the useful bits for each event — the title, date, time, whether it's online or in person, where it is, a short description, and the link.
  3. Send those events to an AI model to sort and summarise them into a weekly digest aimed at busy small business owners. I'd like the events grouped into three buckets:
    🔥 High relevance — technology, leadership
    📋 Worth knowing — workshops, training, networking
    😸 Fun — drinks and aperos
  4. Email the digest to me via Gmail.

A few setup notes:

  • I'm using n8n cloud.
  • For the AI step, I'm calling Mistral through OpenRouter, with Bearer token auth. The model is mistral-medium-3.
  • I am non-technical. I need everything as set up as possible with clear instructions on how to attach my OpenRouter and Gmail credentials.
  • Please use as few steps as possible. Simplify where it makes sense.
  • Please give me the finished workflow as a JSON file I can import straight into n8n.
"I want to summarize or draft content" Mistral Le Chat (free) or Claude.ai

Both are free chat interfaces with no setup — open the link in your browser, sign up, and start typing. Paste your text and describe what you want: "summarize in 3 bullets," "rewrite in a formal tone," "extract the action items from this meeting."

Mistral Le Chat is EU-hosted in France, GDPR-native, and fastest for European languages (French, German, Spanish, Italian, etc.). Claude.ai is stronger for nuanced writing, long documents (up to 200,000 words in one prompt), and structured reasoning tasks like reviewing contracts or analyzing spreadsheets.

The free tiers are enough for occasional use. Paid plans (~€20/month) unlock the most capable models, longer documents, and higher daily limits.

"I want to transcribe meetings" Whisper (free) or Deepgram

You have three realistic routes, depending on how technical you want to get and whether the recording needs to stay private:

1. Free, on your own computer (most private): Install Whisper locally. Technical users run it as a Python command (whisper recording.mp3 --model medium.en). Non-technical users can use a friendly desktop app like MacWhisper (Mac) or Buzz (Mac/Windows/Linux) — drag, drop, transcribe. Nothing ever leaves your device.

2. Free through a chat tool: Upload the audio to Mistral Le Chat or Claude.ai and ask it to transcribe and summarize in one step. Fastest for one-off recordings — but the audio leaves your device.

3. Paid API (best for high volume or live): Deepgram Nova-3 is faster, more accurate with accents, and supports real-time captions. Around €0.40/hour — call it from Make or n8n in an automated pipeline.

"I want to read & process documents" Mistral OCR or Google Document AI

For one-off scans or simple PDFs: upload the file to Mistral Le Chat or Claude.ai and ask for the extracted text, tables, or specific fields. Free, instant, no setup.

For automated pipelines (invoices arriving daily, an archive of documents to digitize, contracts to process): call the Mistral OCR API from a Make or n8n workflow. It handles complex layouts, tables, and multi-language documents in one pass. EU-hosted.

For structured field extraction (invoice number, VAT, dates, line items into a database): Google Document AI has pre-trained "processors" for invoices, receipts, IDs, and forms. Azure Document Intelligence is the comparable Microsoft offering — strongest for forms.

"I want to build a client portal" Softr with built-in tables

Softr lets you ship a login-protected client portal in an afternoon. Use their built-in database (no separate tool needed) or connect an existing Google Sheet, Airtable, or Notion workspace. Out of the box you get user authentication, per-client content, file uploads, forms, and a clean mobile-friendly design.

The free tier covers small portals. The €49/month plan unlocks custom domains, more users, and payment gating. If you want more design control or custom interactions, WeWeb is the next step up — still no-code, but closer to a full web framework.

Typical starter build: client login → dashboard with their projects/invoices → file upload area → contact form. One afternoon, zero code.

"I want to stay GDPR-compliant" EUrouter or Requesty EU + Mistral

Two practical rules: keep the data inside the EU, and prefer EU-hosted models.

Route your API calls through EUrouter or Requesty EU instead of OpenRouter. Both are Frankfurt-hosted with zero cross-border transfer — meaning your customer data never touches US servers, even in transit.

Pick Mistral models as your default. French-hosted, GDPR-native, and competitive on quality. Reserve US-hosted models (Claude, GPT) for tasks that don't involve personal data, or only after you have a signed DPA in place.

Document it. Add your AI tools to your processing register (GDPR Art. 30), note where each provider hosts data, and include them in your privacy policy. For platforms like Make, choose the EU data region at setup — it's a one-click decision that's much harder to reverse later.

"I want to connect multiple AI models" Use an API router (see Section 02)

Instead of juggling separate accounts, API keys, and monthly bills with OpenAI, Anthropic, Mistral, Google, and the rest, use one router. You get a single API key, one dashboard, one invoice, and can swap between models by changing a single string in your workflow or code.

OpenRouter has the largest selection (200+ models) but is US-based. EUrouter and Requesty EU are the EU-sovereign alternatives — fewer models, but your data stays in Europe.

All are pay-per-use — no monthly fees, no minimums. You only pay for tokens actually used. For a typical small-business workload, that's usually a few euros per month.

Questions? Want help building your first workflow?

Get in touch