Best AI Chatbots

Choose an AI chatbot for writing, research and daily tasks.

Three stacked layers show account-wide Instructions for Claude, project instructions and the chat prompt, beside a checklist of what to write.

Claude · Nov 7

Claude custom instructions and preferences: what to write

Where to set Instructions for Claude, what to put in them and when project instructions or memory fit better.

A custom instructions panel with role, tone, format and guardrail entries, and an arrow showing them applied to three new chats.

ChatGPT · Nov 2

ChatGPT custom instructions: what to write and where to set them

Where to set ChatGPT custom instructions, what to write in them and how they differ from Memory.

Parent and teen account icons joined by a link marked "Chats stay private", above switches for quiet hours, Voice Mode, image generation and saved memories.

ChatGPT · Oct 27

ChatGPT parental controls: how to link and set up a teen account

Link a teen ChatGPT account, set quiet hours and limits, and learn what parents can and cannot see.

A chat window with a Share button, a home address and an attached photo, connected by a public link to four people, labelled anyone with the link.

AI chatbots · Oct 23

How to share a ChatGPT conversation, Claude chat or Gemini chat safely

Shared AI chat links can be opened by anyone who has them. What each service includes and how to delete old links.

An AI answer card with date, price and quote claims; two link to highlighted lines in a source document under a magnifier, the quote finds no source.

AI chatbots · Oct 18

How to fact-check AI answers from ChatGPT, Claude and Gemini

Get the sources, open them and find the line: how to check what ChatGPT, Claude and Gemini tell you.

A speech bubble holds four prompt parts, goal, context, format and limits, which lead to an answer card with a check mark.

AI chatbots · Oct 14

How to write AI prompts that get a usable answer

Four parts that make a chatbot prompt work: the goal, the context, the format and the limits.

Privacy control sliders in ULKA lime and ink

AI chatbots · Oct 10

AI chatbot privacy settings: training and history

ChatGPT, Claude and Gemini expose different controls for model training, saved activity and temporary chats.

A clear question leads to a conversational answer linked to a checked source document.

AI chatbots · Sep 25

Best AI chatbots for the work you actually do

Compare five AI assistants by their tools, sources and fit with your everyday work.

Two circles show that doubling the radius from one to two makes the area four times larger

Best AI Chatbots · Mar 11

ChatGPT adds interactive maths and science lessons

ChatGPT is adding interactive explanations for more than 70 maths and science topics.

The best chatbot for a short answer may be a poor fit for long documents or a shared workspace. ULKA compares assistants by their documented tools, source handling, file support and account options. We explain the trade-offs between free and paid use without treating a polished answer as proof of accuracy. Start with the overview, then follow the more focused comparison of ChatGPT, Claude and Gemini if those services are on your shortlist.

Read about ULKA’s editorial approach or contact the editors.