Best Chat assistants AI Tools

Z.ai is the free chat assistant from the company formerly known as Zhipu AI, running its GLM model family. It is popular with developers and students for coding help, writing and building quick web pages or slide decks from a prompt.

Tencent Yuanbao is Tencent's AI assistant for Chinese users, running Tencent's Hunyuan models alongside DeepSeek. It can search WeChat Official Account articles, read files, write and translate, and it is reachable inside WeChat.

Talkie is a character chat app from Chinese AI company MiniMax that focuses on expressive voices and interactive stories. Users chat with community-made characters or design their own, including appearance, personality and a generated voice.

Sider is an AI sidebar extension for Chrome, Edge and Safari that lets you chat with models from OpenAI, Anthropic, Google and others while you browse. It summarizes pages and PDFs, translates, rewrites text and answers questions about what is on screen.

RoleplayGPT lets you talk with AI versions of characters from novels, movies, TV, comics, anime and games, and build your own stories. Casual users and fans use it for fun conversations powered by ChatGPT models.

Qwen Chat is Alibaba's free AI assistant for international users, powered by its Qwen models. It handles writing, coding, image and video generation and document analysis, and lets you switch between several Qwen models in one interface.

PolyBuzz is an AI character chat platform with a very large library of anime, fantasy, romance and game personas, plus tools to create your own. It supports text and voice chat and is restricted to users aged 18 and over.

Nurmonic adds AI characters to a Discord server. They talk in character, remember past conversations and generate images on request in the channel.

Mistral Vibe is the assistant from French AI company Mistral, renamed from Le Chat in May 2026. It answers questions, searches the web, reads documents and runs multi-step work and coding tasks, with an emphasis on European data hosting.

Merlin AI is a browser extension and app that puts models from OpenAI, Anthropic, Google, DeepSeek and others in a sidebar on any website. It helps with summarizing pages and videos, writing emails and researching without switching tabs.

Lumo is a privacy-first AI assistant from Proton, the Swiss company behind Proton Mail. Chat history is stored with zero-access encryption, Proton keeps no server logs, and conversations are never used to train models.

Kindroid is an AI companion app that gives you detailed control over your companion's backstory, personality, memory and voice. It is aimed at adults who want to shape a character closely, and it supports natural voice calls and generated selfies.

Kimi is the AI assistant from Beijing-based Moonshot AI, known for reading very long documents and running multi-step research. It runs Moonshot's own Kimi models and has a free plan with unlimited basic chat and web search.

Kagi Assistant is a chat interface included with Kagi search plans that combines models from several labs with results from Kagi Search. It is aimed at people who pay for ad-free search and want one place to use many models with web grounding.

Janitor AI is a browser-based platform for chatting with more than a million community-built AI characters, aimed strictly at adults. It includes a free in-house model and lets users plug in API keys from providers such as OpenAI, DeepSeek or OpenRouter.

Gemini is Google's AI assistant on the web, Android and iOS. It answers questions with Google Search, works with Gmail, Drive and Docs, and generates images and video, which makes it a natural fit for people already using Google services.

Duck.ai is DuckDuckGo's anonymous AI chat, which lets you use models from OpenAI, Anthropic, Meta and Mistral without signing in. DuckDuckGo strips identifying data from requests and providers agree not to train on the chats.

Doubao is ByteDance's AI assistant for Chinese-speaking users, available on the web, desktop and mobile. It answers questions, writes and translates text, generates images and video, and connects with ByteDance services such as Douyin.

DeepSeek is a free chat assistant on the web and mobile from the Chinese lab of the same name. It runs DeepSeek's own open-weight models, offers a deep-thinking mode for math and code, and has no paid consumer plan.

ChatLLM is Abacus.AI's all-in-one assistant that gives one subscription access to models from OpenAI, Anthropic, Google, xAI and open-weight labs. It also includes image and video generation, a coding editor and the DeepAgent task agent.