Kimi 2.5
Kimi K2.5 is an open-source 1-trillion parameter MoE model that excels at visual coding, multimodal reasoning, and autonomous agent capabilities through its innovative agent swarm technology.
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Product Information
Updated:Jan 30, 2026
What is Kimi 2.5
Kimi K2.5 is Moonshot AI's latest large language model that builds upon Kimi K2 through continued pretraining on approximately 15 trillion mixed visual and text tokens. It features a Mixture-of-Experts (MoE) architecture with 1 trillion total parameters and 32 billion activated parameters, making it one of the most powerful open-source multimodal models. The model supports a 256K context window and is designed to handle complex visual coding, document analysis, and autonomous agent tasks through its native multimodal architecture.
Key Features of Kimi 2.5
Kimi K2.5 is a powerful open-source multimodal AI model with 1 trillion total parameters (32B activated) that combines visual coding capabilities with agent swarm technology. It features a 256K context window, native vision encoder, and advanced tool usage abilities, making it particularly strong in visual-to-code conversion, complex reasoning tasks, and autonomous agent-based workflows.
Mixture-of-Experts Architecture: Uses a 1T parameter MoE architecture with 32B activated parameters across 61 layers, enabling efficient processing while maintaining high performance
Advanced Visual Understanding: Features MoonViT vision encoder with 400M parameters for superior visual-language integration and understanding across images, videos, and documents
Agent Swarm Technology: Can coordinate up to 100 AI sub-agents working in parallel, each using tools independently to tackle complex tasks and reduce execution time by up to 4.5×
Extended Context Processing: Supports a 256K context window enabling complex long-horizon multimodal tasks and comprehensive document analysis
Use Cases of Kimi 2.5
Visual Coding & Web Development: Converts UI designs, mockups, and video workflows directly into production-ready code with pixel-perfect accuracy
Professional Presentation Creation: Automatically generates well-structured, professional slides with strong aesthetic judgment and ready-to-use layouts
Complex Research & Analysis: Conducts deep research and analysis across multiple sources using parallel agent processing for comprehensive results
Spreadsheet & Data Management: Functions as an AI Excel agent that converts natural language instructions into functional spreadsheets and data analysis
Pros
Open-source model with OpenAI/Anthropic-compatible API
Strong performance in visual coding and multimodal tasks
Advanced agent swarm capabilities for complex task handling
Competitive benchmark results against leading closed-source models
Cons
Resource-intensive due to large model size
Limited free tier usage quotas
Some features still in experimental phase
How to Use Kimi 2.5
1. Access Kimi K2.5: Visit platform.moonshot.ai or use the API through together.xyz. You'll need to create an account and get an API key.
2. Choose Interaction Method: Select between using the web interface (Kimi Web), mobile app (Kimi App), API integration, or the specialized coding product (Kimi Code)
3. Select Model Mode: Choose between 'Thinking mode' (with step-by-step reasoning traces) or 'Instant mode' depending on your needs
4. API Integration (for developers): Use the OpenAI-compatible API format with your API key. Set headers with 'Authorization: Bearer $TOGETHER_API_KEY' and 'Content-Type: application/json'
5. Configure Parameters: Set parameters like temperature=1.0, top-p=0.95, and context length up to 256K tokens as needed for your use case
6. Utilize Tools: Access built-in tools for search, code-interpretation, and web-browsing capabilities through the API or interface
7. Handle Multimodal Inputs: Submit text, images, or combined inputs - the model can process multiple types of input simultaneously for tasks like visual coding or document analysis
8. Monitor Usage: Track token usage and costs - pricing is approximately $0.6-$2.5 per million tokens depending on the service tier
Kimi 2.5 FAQs
Kimi K2.5 is an open-source model specialized in visual coding and complex tasks, featuring a Mixture-of-Experts (MoE) architecture with 1T total parameters and 32B activated parameters.
Kimi 2.5 Video
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