ChatGPT
chatgpt.com
The chatbot that made everyone else build a chatbot
AI Playground
Answers with the sources listed underneath
perplexity.ai
Instant · Works anywhere
Free, no sign-up · online since 2022
A search-shaped assistant that runs a live web query, writes a short answer, and footnotes each claim with the page it came from. Follow-up questions keep the thread going. The citation list is really the product, because it lets you check the answer rather than trust it.
Every sentence carries a numbered source you can open, which makes the failure mode visible instead of hidden.
Keep going
Picked for a shared category and overlapping vibe, not for popularity.
chatgpt.com
The chatbot that made everyone else build a chatbot
claude.ai
Anthropic's assistant, strongest on long documents
gemini.google.com
Google's model, wired into search and your files
notebooklm.google.com
Upload your sources, get a podcast about them
teachablemachine.withgoogle.com
Train an image classifier in about four minutes
huggingface.co
Transcribe audio locally, with no upload anywhere