Kimi
Moonshot AI's frontier model with 1T-parameter MoE and 256K context
About
Kimi is Moonshot AI's flagship AI assistant built on the K2 Mixture-of-Experts architecture: 1 trillion total parameters with only 32 billion activated per request, delivering frontier-model performance at a fraction of the cost. Its 256K-token context window handles entire codebases, research papers, and long document analysis in a single prompt. The K2 Thinking variant supports up to 300-step tool calling for complex research, competitive analysis, and agentic coding tasks. API pricing undercuts GPT-5.4 by 4–17× with automatic context caching reducing repeated-prompt costs by up to 75% at no extra configuration. Pro subscriptions start at $8/month.
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