take two.

Free course · Registered members

AI models and plans: compare before you choose

A practical guide to ChatGPT, Claude, Gemini, Copilot, Perplexity and Mistral: models, public subscriptions, strengths, limitations and selection criteria.

45 minutes including practiceAll courses

Editorial team: Take Two · Published

What you will learn

Learn to distinguish products from models, read pricing and compare two tools on your work. Editorial snapshot checked on 6 October 2026; prices and availability may change.

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Five practical lessons

  1. 01

    Model, product, plan: three different things

    Identify what you are buying before comparing offers. A model name does not describe the whole service.

    8 min · Member access →
  2. 02

    Model families and access channels

    This selection covers six ecosystems. It is neither a complete model catalogue nor a universal ranking.

    9 min · Member access →
  3. 03

    Public plans and prices: understand the real cost

    The table is a starting point for purchase comparisons, not a local quote.

    11 min · Member access →
  4. 04

    Pros and cons: start with your work

    The following assessments are editorial guidance, not measured performance or claims of universal superiority.

    9 min · Member access →
  5. 05

    Choose with a test instead of chasing every release

    Finish with a repeatable comparison procedure for changes in models and pricing.

    8 min · Member access →

Sources and further reading

Official sources checked on 6 October 2026. This is a dated selection, not a full catalogue or an automatically updated price list. Follow current vendor terms and local checkout prices.