What it is

Made its name on cost: the API is an order of magnitude cheaper than Western equivalents for comparable work, and the chat interface is free. Weaker on image and voice, and the hosted service has had capacity problems during peaks. Best treated as the cheap second opinion rather than the only tool.

Pricing

Free chat; API priced per token, unusually low

Who it suits

Strong reasoning at a fraction of the usual price. If the constraint above matches how you work, this is a safe default. If it does not, check the alternatives below before committing to a subscription.

Alternatives in General Assistants

ChatGPT — The default general-purpose assistant, now with agents and deep research.
Claude — Long-context writing and code work with a strong editing instinct.
Gemini — Google's assistant, wired into Search, Workspace, and Android.