Tool & Platform
Beginner
OpenAI · AI Chat Assistants
OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.
Tool & Platform
Beginner
Anthropic · AI Chat Assistants
Anthropic's conversational product, well regarded for long context and coding; the free tier works for daily use.
Tool & Platform
Beginner
Google · AI Chat Assistants
Google's AI assistant, deeply integrated with Search, Gmail and Docs, with strong image and video understanding. The free tier covers mainstream models; deep research and other advanced features need a subscription.
Tool & Platform
Beginner
★ Featured
月之暗面 · AI Chat Assistants
Moonshot's AI assistant, famous for its ultra-long context — ideal for reading long documents, papers and web pages. Free to use and one of the top picks for Chinese long-text work.
Tool & Platform
Beginner
★ Featured
幻方量化 · AI Chat Assistants
High-Fly Quant's reasoning model with standout math and coding ability. Free on web and app, open-weight, and cheap API pricing — a crowd favorite among Chinese models.
Tool & Platform
Beginner
腾讯 · AI Chat Assistants
Tencent's AI assistant, powered by both DeepSeek and Hunyuan models, with WeChat article and PDF document parsing. Free to use.