Kimi
Moonshot AI's assistant, known for ultra-long context handling; the K3 flagship was open-sourced in July 2026.
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Our review
The K3 flagship (July 2026, 2.8T params) is one of the world's largest open-source models, with native vision and a 1M context. Built by Moonshot AI, Kimi is known for ultra-long context — it can swallow a large pile of documents and stay coherent, with excellent long-document understanding and Chinese, and it's free and easy to use.
English and creative writing are average and the API has limits; but if your core need is feeding in a stack of long material and then interrogating it, Kimi's long-context experience leads among Chinese assistants.
Pros
Cons
Key features
Best for
FAQ
What is Kimi?
Moonshot AI's assistant, known for ultra-long context handling; the K3 flagship was open-sourced in July 2026.
What are the pros and cons of Kimi?
Pros: Ultra-long context, Strong document understanding, Strong Chinese, Great free tier. Cons: Average English, Creative writing needs work, API limits.
How much does Kimi cost?
Free: Free; Starter: CN¥49/mo; Pro: CN¥199/mo.
Who is Kimi for?
Best for Long-document processing, Academic research, Document summaries, Chinese chat.
What are the alternatives to Kimi?
Consider ChatGPT, Claude, DeepSeek.
Pricing
- • Basic chat
- • Long text
- • Higher limits
- • Priority response
- • Top limits
- • Advanced features