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AI assistants are chat apps that answer questions, reason through problems and work with files, images and the web. This list gathers the ones GenGrades has written up, each page with its prices, limits and sourced facts.
Every tool and model we have graded for AI assistants, best total first.
Character.AI is a chatbot app where people talk to characters other users create, made by Character Technologies. The company filed for Chapter 11 bankruptcy on October 12, 2026, and Disney bid 20 million USD for a license to some assets; the app runs during the sale and will be wound down if no bid keeps it going.
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Duck.ai is DuckDuckGo's private AI chat, launched in June 2024 as DuckDuckGo AI Chat. It lets you use models from OpenAI, Anthropic, Mistral and others without an account, and DuckDuckGo strips your IP address before each request. Six models are free; stronger ones come with DuckDuckGo's 9.99 or 19.99 USD monthly plans.
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Gemini Notebook is Google's research notebook that answers from the sources you add and turns them into audio, video, reports and quizzes. Google renamed it from NotebookLM on July 16, 2026; it is the same standalone product, existing notebooks carried over, and notebooklm.google.com now redirects to notebook.google.com.
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Grok is the chatbot from SpaceXSI, the Musk company formerly called xAI and then SpaceXAI, sold since October 13, 2026 in the X Subscription. Since January 2026 it has faced country blocks, investigations and lawsuits over sexualized deepfakes, and Canada's Privacy Commissioner found in June 2026 that X Corp. and xAI broke federal privacy law.
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Xiaomi MiMo is Xiaomi's AI model family and platform: chat in MiMo AI Studio, an OpenAI- and Anthropic-compatible API, voice models, and coding and desktop agents. Its MiMo-V2.6-Pro, released with MIT-licensed weights on September 22, 2026, is the top open-weights model on Artificial Analysis's index as of October 17, 2026.
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Answer first, then why, an example, the limits and what to do next.
An AI assistant here is a general chat app or model platform people use day to day for questions, research and files, such as Grok, Duck.ai or Gemini Notebook. Coding agents and agents that act for you have their own lists.
Entries with a GenGrades score come first, highest total first; the rest follow in alphabetical order. Each one links to its full page.
Every fact on a tool page carries its source and the date it was checked: the maker's own pages and terms, public tests and user reports.
Sources
Changelog
VideoEnhancer is a web tool that upscales short MP4 clips to 1080p, 2K or 4K with the FlashVSR model and also compresses, face-swaps and generates video. After a 5-second free trial, 1080p costs 3 credits a second, $0.03 to $0.09 depending on how credits are bought. VideoEnhancer is our own product: it is made by the team behind GenGrades.
LayerGrab splits a flat image into up to 16 named, transparent layers over a filled-in background, on the web, in Figma or in Chrome, or pulls out only what you name. Each layer costs $0.10 on its $12 plan, $0.08 on Premium. No independent review exists yet. LayerGrab is our own product: it is made by the team behind GenGrades.
VideoTextRemover is a web tool that erases burned-in subtitles, captions and other on-screen text from MP4 and MOV videos and repaints what was behind them, up to 1080p. It bills per second processed, about $0.025 to $0.049, with 30 free seconds a month in some countries. VideoTextRemover is our own product: it is made by the team behind GenGrades.
MagicRemover is a browser tool that erases people, objects, text, logos and watermarks from photos, and subtitles from videos. Photos get 2 free removals a day, 2 more after sign-in, at about 1 megapixel; beyond that, credits start at $9.90 for 330. MagicRemover is our own product: it is made by the team behind GenGrades.