Moonshot AI
Moonshot AI (月之暗面) is a Chinese artificial intelligence technology company focused on the research and development of large language models and their applications. Its core product is the Kimi intelligent assistant, which features long-context text understanding and processing capabilities. The company pursues general artificial intelligence technology and provides natural language processing services and solutions to both individual users and enterprise clients.
Core Facts
Moonshot AI was founded in 2023 by Tsinghua University professor Yang Zhilin.
Kimi Code is a programming tool from Moonshot AI.
Moonshot AI has released a massive open-source model called Kimi K3 with 2.8 trillion parameters, using a MoE architecture.
Timeline (last 90 days)
Kimi K3.1 Pro has 3 trillion parameters and a 1 million token context window, and is planned for release as open weights.
Users can try Kimi K3.1 Pro for free through the Kimi chatbot, or access it via API.
Moonshot launched a high-speed version of Kimi K3.1 Pro, with response speed 2-3 times that of the standard version.
Moonshot officially released Kimi K3.1 Pro, an open-source mixture-of-experts (MoE) model.
Moonshot AI promises to release the full model weights of Kimi K3.1 Pro by November 4.
Moonshot AI plans to release the weights of Kimi K3.1 Pro by November 4 and subsequently support more providers.
Kimi K3.1 Pro and K3.1 Pro Highspeed are two presentations of the same underlying model in terms of inference configuration.
The impact of this finish reason semantic adjustment covers adapter packages including OpenAI (Chat, Responses, Completions), Anthropic, Google, Alibaba, Amazon Bedrock Converse, Cohere, DeepSeek, Groq, Hugging Face Responses, Mistral Chat, Moonshot AI, Open Responses, Perplexity, and xAI Responses.
Kimi K3 is provided by Moonshot AI, GLM 5.3 is provided by Z.ai, and DeepSeek V4.1 Flash is provided by DeepSeek.ai.
Kimi K3's cost per token is at least four times the open-source model average, contributing about two-thirds of the growth in open-source model spend.
32 more timeline events
All Facts (20)
Moonshot AI was founded in 2023 by Tsinghua University professor Yang Zhilin.
80%VerifiedKimi Code is a programming tool from Moonshot AI.
80%VerifiedMoonshot AI has released a massive open-source model called Kimi K3 with 2.8 trillion parameters, using a MoE architecture.
65%UnverifiedKimi-2.5是月之暗面（Moonshot AI）推出的强化学习推理模型，是国内首批明确以强化学习推理为核心训练范式的模型之一
70%UnverifiedKimi K3.1 Pro and K3.1 Pro Highspeed are two presentations of the same underlying model in terms of inference configuration.
60%UnverifiedKimi Chat was among the first to support ultra-long text input of 200,000 characters.
60%UnverifiedMooncake是月之暗面（Moonshot AI）开源的分布式KV Cache传输框架
60%Partially VerifiedMoonshot officially released Kimi K3.1 Pro, an open-source mixture-of-experts (MoE) model.
65%UnverifiedUsers can try Kimi K3.1 Pro for free through the Kimi chatbot, or access it via API.
50%UnverifiedKimi K3.1 Pro has 3 trillion parameters and a 1 million token context window, and is planned for release as open weights.
50%UnverifiedThe impact of this finish reason semantic adjustment covers adapter packages including OpenAI (Chat, Responses, Completions), Anthropic, Google, Alibaba, Amazon Bedrock Converse, Cohere, DeepSeek, Groq, Hugging Face Responses, Mistral Chat, Moonshot AI, Open Responses, Perplexity, and xAI Responses.
50%UnverifiedKimi K3 is provided by Moonshot AI, GLM 5.3 is provided by Z.ai, and DeepSeek V4.1 Flash is provided by DeepSeek.ai.
50%UnverifiedTypical representatives of open-weight models include Meta's Llama series, the DeepSeek series, Moonshot's Kimi, Z.ai's GLM, and others; companies such as Mistral and Cohere adopt a hybrid model of open weights plus commercial services.
50%UnverifiedKimi K3's cost per token is at least four times the open-source model average, contributing about two-thirds of the growth in open-source model spend.
50%UnverifiedDeepSeek's models handled 58% of all gateway tokens but accounted for only 6.6% of spend; Moonshot AI took 3.6% of tokens and 13.2% of spend; Z.ai took 7.2% of tokens and 4.5% of spend.
50%UnverifiedGLM 5.3 comes from Z.ai (the overseas brand of Zhipu AI), and Kimi K3 comes from Moonshot AI; both are domestic Chinese models that perform outstandingly on code generation and reasoning tasks.
50%UnverifiedMoonshot AI's Kimi K3 supports passing video files directly through the API, whereas Claude still has no video input channel to date.
50%UnverifiedKimi is Moonshot AI's large language model, callable through its OpenAI-compatible chat-completions endpoint.
50%UnverifiedCloutBot is an on-chain AI opponent powered by Moonshot AI's Kimi model for the CloutCall prediction game, always online and offering predictions whose reasoning process can be viewed.
50%UnverifiedKimi K2 is an open-source Mixture-of-Experts model released by Moonshot AI in 2025, with approximately 32 billion activated parameters and more than 1 trillion total parameters
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