Updated May 2026
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Kimi Review · 2026 — Pricing, Features & Alternatives
Moonshot AI's assistant: open-weight K2/K3 models, long context and a coding agent from $19/mo
4.5
/5 · 0
Kimi is the AI assistant from Moonshot AI (Beijing), powered by the open-weight K2/K3 model family: the K2.6 flagship (multimodal text/image/video, 256K context, thinking mode) and the 2.8-trillion-parameter open-weight K3. Beyond chat (web search, long-document analysis, writing), Kimi offers an agent mode (Kimi Work) that orchestrates hundreds of sub-agents across thousands of steps, and Kimi Code, an open-source coding CLI positioned as a budget alternative to Claude Code and Codex (from $19/mo). The models are also available via API (K2.6: $0.95/M input tokens, $4/M output).
4.5
/5
Our verdict
Kimi is an excellent choice for users and developers looking for an open, affordable alternative to claude, chatgpt or codex, with strong long-context needs.
Best for: Users and developers looking for an open, affordable alternative to Claude, ChatGPT or Codex, with strong long-context needs
Try KimiFeatures of Kimi
Open-weight K2/K3 models
Open model family: K2.6 flagship (1T-param MoE) and K3 (2.8T), usable via the app, the API or self-hosted
256K long context
Analyze entire documents, large codebases or long conversations without losing the thread
Kimi Work agent mode
Orchestrates hundreds of specialized sub-agents across thousands of coordinated steps for complex tasks
Kimi Code (coding agent)
Open-source coding CLI rivaling Claude Code and Codex, with parallel multi-agent execution, from $19/mo
Text/image/video multimodal
Understands text, images and video input, with a thinking mode for advanced reasoning
Low-cost developer API
K2.6 at $0.95/M input tokens and $4/M output, among the cheapest in its class
Pros and Cons
Pros
- Competitive open-weight models (K2.6: 76.8% on SWE-bench)
- Aggressive pricing: full coding agent from $19/mo, generous free tier
- Long context (256K) and multimodal (text, image, video)
- Agent mode orchestrating hundreds of sub-agents in parallel
Cons
- Interface and ecosystem designed first for the Chinese market
- 256K context below the 1M of some rivals (Claude)
- Young ecosystem: fewer third-party integrations than ChatGPT or Claude
Use Cases
Conversational assistant with web search Long-document analysis and summarization CLI coding agent (Kimi Code) Multi-step agentic tasks (Kimi Work) Low-cost LLM inference via API
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Moonshot AI's assistant: open-weight K2/K3 models, long context and a coding agent from $19/mo
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Frequently Asked Questions
Is Kimi AI free?
Yes, Kimi has a free tier on kimi.com that covers everyday chat, web search and document analysis with usage limits. Paid plans start at $19/month and raise the caps on the agent mode (Kimi Work) and the Kimi Code coding CLI. For developers, the API is billed per token: K2.6 costs $0.95 per million input tokens and $4 per million output tokens, among the cheapest in its class.
Is Kimi better than Claude?
It depends on the job. On coding benchmarks, Kimi's K2.6 (76.8% on SWE-bench) is close to Claude's frontier models, and Kimi wins on price and openness: open-weight models you can self-host, a $19/month coding plan and a cheap API. Claude keeps the edge on long context (1M tokens vs 256K), enterprise ecosystem and product polish outside China. Many developers use both: Kimi Code for cost-sensitive agentic work, Claude Code for large-context refactors.
What is Kimi Code?
Kimi Code is Moonshot AI's open-source coding CLI, a direct rival to Claude Code and OpenAI Codex. You run it in your terminal, describe a task, and it edits files, runs tests and iterates autonomously, with a parallel multi-agent mode for large jobs. It runs on the K2.6 model and starts at $19/month, noticeably cheaper than most agentic coding subscriptions.
Is Kimi open source?
Kimi's models are open-weight: the K2 family and the 2.8-trillion-parameter K3 are published with downloadable weights, so you can self-host them or use third-party inference providers. The kimi.com assistant itself is a hosted product, but the open weights make Kimi one of the few frontier-class assistants whose models you can actually run on your own infrastructure.
Who owns Kimi AI?
Kimi is made by Moonshot AI (Beijing), founded in March 2023 by Yang Zhilin, Zhou Xinyu and Wu Yuxin. Yang holds a Carnegie Mellon PhD and co-authored the Transformer-XL and XLNet papers. Moonshot is one of China's "six AI tigers" and the lab that bet hardest on open weights. Because the company is Chinese, teams with strict data-residency requirements should review where conversation data is processed before using Kimi with sensitive code or documents.
How much does Kimi cost?
Kimi's consumer assistant is free with limits, and paid plans start at $19/month. Kimi Code, the coding CLI, also starts at $19/month. On the API side, K2.6 is billed at $0.95 per million input tokens and $4 per million output tokens; the reasoning-focused K2 Thinking variant costs $0.60/$2.50. That undercuts most frontier competitors by a wide margin.
Is Kimi AI better than ChatGPT?
For coding and agentic work, Kimi's K2.6 is genuinely competitive with ChatGPT's GPT-5 models, and Kimi wins on openness (open-weight models you can self-host) and API price ($0.95/M input tokens, several times cheaper than OpenAI). ChatGPT keeps the edge as a general assistant: broader ecosystem (GPTs, plugins, memory), more polished multimodal features and stronger product fit for Western markets. If your main use is low-cost agentic coding, Kimi is a serious alternative; for an all-purpose assistant, ChatGPT stays the safer default.
Is Kimi AI safe to use?
Kimi is operated by Moonshot AI, a Chinese company, so conversation data is processed under Chinese jurisdiction. For everyday questions, research and drafting that is fine for most users. For sensitive code, confidential documents or regulated data, review your compliance requirements first; the safer route is to self-host Kimi's open-weight models or use a provider in your jurisdiction. As with any AI assistant, avoid pasting secrets or personal data into prompts.
Is Kimi K2 being discontinued?
No. Moonshot made K2.6 the flagship in April 2026, succeeding K2.5, and the newer K3 followed in July 2026, but the K2 family remains available through the API and as open weights. Newer versions taking over the flagship role is normal version turnover, not the end of the K2 line.
