Skip to main content
9 – 17 UHR +49 8031 3508270 LUITPOLDSTR. 9, 83022 ROSENHEIM
DE / EN
LLM Moonshot AI China

Moonshot Kimi

Moonshot Kimi K2 and K2.5 - Open-Source models with 256K context window. Important: Only self-hosting is GDPR-compliant! AI consulting from Rosenheim advises on secure Kimi deployment.

License Modified MIT
GDPR Hosting Available
Context 256K Tokens
Modality Text, Image, PDF, Video, Code → Text, Code

Versions

Overview of available model variants

ModelReleaseEUStrengthsWeaknessesStatus
Kimi-K2.5 Recommended
2025-01
Native Multimodal (Image, Video, PDF, Text) 256K Context Window MoonViT Vision Encoder State-of-the-art Coding (LiveCodeBench 53.7%)
Very resource-intensive (8x H100 for 256K)
Current
Kimi-K2-Thinking
2024-12
Chain-of-Thought Reasoning 256K Context Window Agentic Workflows Best Open-Source Thinking Model
Resource-intensive
Current
Kimi-K2-Instruct
2024-12
General-Purpose Chat 128K Context Window Stable and reliable
Current
Kimi-K2-Base
2024-12
Foundation Model Fine-tuning possible
Requires Post-Training
Current

Use Cases

Typical applications for this model

Coding & Software Development
Agentic AI Workflows
Long Document Analysis
Multimodal Reasoning Tasks
Self-Hosted Enterprise Deployments
Research & Development
Visual Question Answering

Technical Details

API, features and capabilities

API & Availability
Availability Public
Latency (TTFT) ~1200ms
Features & Capabilities
Tool Use Function Calling Structured Output Vision Reasoning Mode File Upload
Training & Knowledge
Knowledge Cutoff 2024-12
Fine-Tuning Available (LoRA, Full Fine-Tuning, PEFT)
Language Support
Best Quality English, Chinese
Supported Multilingual
Best quality in English and Chinese

Hosting & Compliance

GDPR-compliant hosting options and licensing

GDPR-Compliant Hosting Options
Self-Hosted
Own EU Infrastructure
Recommended for GDPR compliance
License & Hosting
License Modified MIT
Security Filters Customizable
On-Premise

Benchmarks

Performance comparison with standardized tests

LiveCodeBench
53.7%
SWE-Bench
65.8%

Important Notice for Enterprises: innFactory AI Consulting from Rosenheim recommends Moonshot Kimi exclusively for self-hosted deployments. When using the API, data is processed in China - only self-hosting in your own infrastructure ensures GDPR compliance for the DACH region (Germany, Austria, Switzerland).

Key Strengths

Ultra-Long Context (256K Tokens)

Kimi K2.5 offers one of the longest context windows in the open-source space:

  • 256,000 tokens - approximately 640 text pages
  • Ideal for extensive document analysis
  • Enables complex multi-step reasoning over long conversations
  • Surpasses most available open-source LLMs

Mixture-of-Experts Architecture

Innovative MoE architecture for maximum efficiency:

  • 1 trillion parameters total
  • Only 32 billion parameters active per request
  • 384 experts, 8 activated per token
  • Multi-Head Latent Attention (MLA) for efficient processing
  • Stable training through MuonClip optimizer

Native Multimodality (K2.5)

Kimi K2.5 is fully multimodal-trained:

  • MoonViT Vision Encoder (400M parameters)
  • Processes images, videos, PDFs, and text natively
  • ~15 trillion mixed visual/text tokens in training
  • Excellent for visual question answering
  • Code generation from UI designs possible

State-of-the-Art Coding

Outstanding performance in programming tasks:

  • LiveCodeBench: 53.7% pass@1
  • SWE-Bench: 65.8% success rate (agentic coding)
  • Full-stack capabilities: Frontend, Backend, DevOps
  • Debugging and automatic code optimization
  • Precise function/tool calling for API integration

Agentic Intelligence

Specialized in autonomous reasoning workflows:

  • Native tool-calling support
  • Multi-step task decomposition (“think → act → re-think”)
  • Agent swarm system for parallel task distribution
  • Nearly 100% precision in API-based tool calls
  • Kimi K2 Thinking: Transparent chain-of-thought processes

Important Considerations

Privacy Considerations

Important for Enterprises: Moonshot AI is a Chinese company. When using the API, data is processed on servers in China. For sensitive enterprise data, we strongly recommend self-hosting.

  • Chinese Company: Server location China (with API usage)
  • GDPR: No explicit GDPR compliance with API usage
  • No EU Regions: Not available through AWS Bedrock, Azure AI, or Vertex AI
  • Recommendation: Self-hosting in your own EU infrastructure

Self-Hosting as Solution

The open-source model can be operated in your own infrastructure:

  • All data remains under your control
  • No dependency on external APIs
  • Full GDPR compliance possible
  • Hardware Requirements: 8x H100 GPUs for full 256K context (INT4)
  • Support for vLLM, SGLang, TensorRT-LLM deployment

Resource Requirements

Kimi is a resource-intensive model:

  • Full Context (256K): 8x NVIDIA H100 (INT4 quantization)
  • Standard Context (128K): 4-6x high-end GPUs
  • INT4, INT8, and FP16 quantization supported
  • For smaller deployments: Use shorter context windows

Technical Highlights

Model Variants

Moonshot AI offers various specializations:

  • Kimi-K2.5: Multimodal, latest generation, 256K context
  • Kimi-K2-Thinking: Reasoning-focused, transparent thought processes
  • Kimi-K2-Instruct: General-purpose chat, 128K context
  • Kimi-K2-Base: Foundation model for custom fine-tuning

Open-Source Licensing

Transparent open-source availability:

  • Modified MIT License - permissive usage
  • Complete model weights on Hugging Face
  • Active community on GitHub
  • Technical reports and benchmarks publicly available

Integration with CompanyGPT

If you wish to operate Kimi in your own infrastructure, we support you with integration into CompanyGPT - our GDPR-compliant chat platform for enterprises.

Availability

API Access:

  • Public API available via platform.moonshot.ai
  • OpenAI-compatible API format
  • Server location: China
  • Not recommended for sensitive EU data

Self-Hosting:

  • Model Weights: Hugging Face (moonshotai/Kimi-K2.5)
  • GitHub Repository: MoonshotAI/Kimi-K2
  • Deployment via vLLM, SGLang, TensorRT-LLM
  • Recommended for GDPR-compliant usage

Our Recommendation

Kimi K2.5 is technically impressive and offers state-of-the-art performance in coding, reasoning, and multimodal tasks. The ultra-long 256K context is unique in the open-source space.

For DACH enterprises, we recommend exclusively self-hosting in your own EU infrastructure. With API usage, data is processed in China, which is GDPR-critical.

Best Choice: Self-hosted Kimi-K2.5 for multimodal applications or Kimi-K2-Thinking for complex reasoning tasks - each in your own infrastructure with full data control.

Alternative: For companies without their own GPU infrastructure, we recommend EU-hosted alternatives like Anthropic Claude or Google Gemini via corresponding EU regions.

Consultation for this model?

We help you select and integrate the right AI model for your use case.