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Kimi

Moonshot AI's long-context assistant with open-weight K2 models and agentic tools

4.3
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Pricing

Freemium

Company

Moonshot AI

Founded

2023

Free Adagio tier; paid plans Moderato $19/mo, Allegretto $39/mo, Allegro $99/mo, Vivace $199/mo with scaled agent quotas; API pay-as-you-go — K2.6 flagship $0.95/M input, $4.00/M output (256K context, cheap cache hits). Verified July 2026.

Pricing verified Jul 2026

Who It's For
Researchers and analysts working with long documentsDevelopers wanting a cheap long-context APIPower users wanting agentic coding and research tools
Details
CompanyMoonshot AI
Founded2023
WebsiteVisit

About Kimi

Kimi is Moonshot AI's AI assistant built on the open-weight Kimi K2 model family, a trillion-parameter mixture-of-experts architecture. It offers a 256K-token context window, Deep Research for multi-step web synthesis, Kimi Code for agentic software engineering, Agent Swarm for parallel subagents, and productivity agents for slides, sheets, and websites. A token-based developer API is available on platform.moonshot.ai with international USD pricing.

Key Features

  • Open-weight Kimi K2 model family (1T-parameter MoE)
  • 256K-token context window on flagship models
  • Kimi Code for long-horizon agentic coding
  • Deep Research multi-step web synthesis
  • Agent Swarm parallel subagents
  • Productivity agents for slides, sheets, and websites

Pros & Cons

Pros

+ Open-weight models reduce lock-in and enable self-hosting

+ Low API pricing with very cheap cache-hit input

+ Strong long-document and codebase handling in one pass

Cons

- Paid plans meter agent quotas, so heavy users hit caps

- Consumer pricing varies by region and channel

- Data residency and moderation may concern some enterprise buyers

Use Cases

Summarizing and cross-referencing long documentsAgentic coding across large codebasesMulti-step research with source synthesis

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