Guide

GPT-6 and other models in ChatGPT

OpenAI Help Center · help.openai.com

How the Thinking slider works (Instant, Medium, High, Extra High, Pro), which plans get each level and what Free and Go users get instead.

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The question it answers

  1. How do I choose between a fast model and a thinking model inside ChatGPT, Claude or Gemini?

Read with it

  1. OpenAI's dated log of every change, including the India Go launch at Rs 399, the end of the free year and the new voices. help.openai.com Article ChatGPT release notes OpenAI Help Center
  2. OpenAI's announcement of the GPT-6 model now behind everyday ChatGPT answers, with examples of the visual answers it gives. openai.com Article GPT-6 and Intelligent UI for everyone OpenAI
  3. Where Claude's model and effort menu is, what Low to Max effort means and the trade-off with usage limits. support.claude.com Guide Change the model, effort, and thinking settings Anthropic (Claude Help Center)
  4. Plain examples of which questions want a quick search, which want more thinking and which want a full research run. support.claude.com Guide When should I use web search, extended thinking, and research? Anthropic (Claude Help Center)
  5. Google's comparison of the free Gemini app with AI Plus, Pro and Ultra, including which plans get the stronger models. gemini.google Tool Google AI Pro & Ultra: get access to Gemini 4 Argon & more Google
  6. A Wharton professor's regular guide: any free model for low-stakes questions, ChatGPT or Claude for real work, and where... oneusefulthing.org Article An opinionated guide to which AI to use to do stuff Ethan Mollick (One Useful Thing)
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