知了 AI - Chrome Extension
A ChatGPT sidebar with GPT-4, Gemini and image recognition, though no longer updated.
At a glance
Starts at
Free
No paid plan found on the Chrome Web Store, September 2026.
Free tier
Yes
Platforms
Chrome
Best for
Casual users wanting free ChatGPT sidebar access
Not for
Anyone wanting an actively maintained AI extension
4.8 out of 5
Scored by a Toolio reviewer after real useOur verdict
Zhiliao AI is a browser sidebar giving access to GPT-4, ChatGPT-4o and Gemini 1.5, plus Xiaohongshu caption generation, AI search, an image recognizer and translation, across web, desktop and Android. Free usage credits build up through daily check-ins and friend referrals, with paid upgrades available for a larger quota. The developer states the extension is no longer updated and recommends switching to GPT, DeepSeek or Qwen directly, so anyone wanting ongoing support or new features should treat that recommendation seriously.
✓What it does well
Multi-model chatSupports GPT-4, ChatGPT-4o and Gemini 1.5 in one sidebar.
Free credit systemEarns free usage credits through daily check-ins and referrals.
Image recognitionRecognizes and analyzes images directly in the sidebar.
✕Where it falls short
No longer maintainedThe developer states the extension is no longer updated and recommends switching to other AI tools.
Credits run outFree usage depends on daily check-ins, not unlimited access.
Paid upgrade needed for moreA larger, roomier quota requires a paid upgrade.
Key features
Sidebar chat accessChats with GPT-4, ChatGPT-4o or Gemini from a browser sidebar.
Xiaohongshu caption generatorGenerates ready-to-post Xiaohongshu captions.
AI-enhanced searchAdds AI search and summarization on top of regular queries.
Image recognition toolIdentifies and describes content from uploaded images.