- Developer
- Moonshot AI (月之暗面)
- Founded
- March 2023
- Latest model
- Kimi K2.6 (2026)
- Context window
- Up to 256K tokens (K2 series)
- Related
- DeepSeek, Doubao, ChatGLM, long-context LLMs
- Developer
- Moonshot AI (月之暗面)
- Founded
- March 2023
- Latest model
- Kimi K2.6 (2026)
- Context window
- Up to 256K tokens (K2 series)
- Related
- DeepSeek, Doubao, ChatGLM, long-context LLMs
Kimi is a conversational AI assistant and family of large language models developed by Moonshot AI (月之暗面, meaning "dark side of the moon"), a Beijing-based AI startup founded in March 2023. Moonshot AI was established by Yang Zhilin, a former researcher at Carnegie Mellon University and Tsinghua University, along with co-founders from leading Chinese and international AI institutions.
Kimi is primarily distinguished by its emphasis on long-context processing — the ability to reason coherently over very long documents or conversations — which has been a core research focus for the Moonshot team from its inception.
Company and Funding
Moonshot AI raised a USD 1 billion Series B funding round in February 2024, one of the largest single funding rounds for a Chinese AI startup, with investors including Alibaba, HongShan (Sequoia China), and Zhen Fund. This valuation placed Moonshot AI among China's most highly valued AI companies. By early 2025 the company's valuation was reported at approximately USD 3 billion.
Kimi K1 and Early Long-Context Work
The initial Kimi product launched in late 2023 with a 128,000-token context window — an industry-leading specification at the time for a publicly accessible consumer AI product. This capability, enabling users to upload and query entire books, lengthy research papers, or extensive codebases within a single session, became Kimi's primary market differentiator and drove rapid adoption among researchers, analysts, and developers in China.
Kimi K2 Series
The Kimi K2 family, released in mid-2025, represented a significant architectural advance. Kimi K2 features a 1-trillion-parameter Mixture-of-Experts architecture with 32 billion active parameters, combining long-context capability with strong agentic reasoning performance. The K2 series emphasises practical task completion rather than benchmark performance alone, positioning Kimi as an AI agent capable of autonomously executing multi-step tasks such as coding projects, research synthesis, and document workflows.
Kimi K2 Instruct, released as an open-weight model on Hugging Face, supports 256,000-token contexts and demonstrates competitive performance on coding, mathematics, and instruction-following benchmarks. The open release reflects Moonshot AI's strategy of building a developer ecosystem around the Kimi model family.
Kimi K2 Thinking (November 2025) added explicit chain-of-thought reasoning to the K2 base, improving performance on complex logical, mathematical, and scientific problems through extended inference-time computation.
Kimi K2.5 (January 2026) extended the series to multimodal capabilities, incorporating a 400-million-parameter vision encoder named MoonViT that enables native image understanding alongside the existing long-context text capabilities. K2.5 supports 256K context with tool calling.
Kimi K2.6 refined long-context coding stability, addressing failure modes in extended software engineering tasks.
Consumer Product
The Kimi consumer application is available via web browser and mobile app, offering features including document upload and Q&A (accommodating files up to several hundred pages), extended-session conversation, web search integration, and code assistance. Kimi's interface is available primarily in Chinese and English.
Kimi's long-context capabilities have attracted adoption among Malaysian researchers, graduate students, and knowledge workers who regularly work with lengthy documents in Chinese, English, or bilingual formats. The ability to upload entire theses, technical specifications, or lengthy contracts and ask Kimi precise questions about the content — rather than reading manually — addresses a practical pain point that standard AI assistants with shorter context windows cannot resolve.
Malaysian law firms handling cross-border commercial matters with mainland Chinese counterparties use long-context LLMs including Kimi to assist with reviewing lengthy Chinese-language agreements, shareholder documentation, and regulatory filings, where the full document context is necessary for accurate interpretation.
In the academic sphere, Malaysian universities with Mandarin-language research programmes — including New Era University College, UTAR (Universiti Tunku Abdul Rahman), and HELP University — have found Kimi useful for students analysing Chinese-language academic literature. The combination of long context and bilingual capability allows users to query Chinese academic papers and receive explanations in English, or vice versa.
Malaysian financial analysts covering China-listed companies or Hong Kong-listed Chinese firms use Kimi to process lengthy annual reports and earnings call transcripts, taking advantage of the 256K context window to load multiple documents simultaneously for comparative analysis.
Kimi is accessible from Malaysia without restriction through Moonshot AI's web platform, and the API is available to Malaysian developers through Moonshot AI's international platform at platform.moonshot.ai, enabling integration into local applications and workflows.
See Also
References