OpenRouter Model Update September 11, 2025

LongCat Flash Chat Now Available on OpenRouter

Meituan's revolutionary 560B parameter MoE model is now accessible through OpenRouter's platform, bringing unprecedented speed and efficiency to AI applications

Key Features & Capabilities

🚀 Massive Scale

560B total parameters with ~27B dynamically activated per input token

⚡ Lightning Fast

Optimized for high throughput with shortcut-connected MoE design

📚 Long Context

Supports 128K token context windows for extended conversations

🛠️ Tool Use

Excels in tool use and complex multi-step interactions

Technical Specifications

  • Model Architecture: Mixture-of-Experts (MoE)
  • Total Parameters: 560 Billion
  • Active Parameters: ~27B per input
  • Context Window: 128K tokens
  • Specialization: Conversational & Agentic Tasks

OpenRouter Integration Benefits

The integration of LongCat Flash Chat into OpenRouter's platform brings several key advantages to developers and businesses:

  • Easy API access with standardized endpoints
  • Competitive pricing with pay-as-you-go model
  • Seamless integration with existing applications
  • Advanced monitoring and analytics tools

Performance Insights

LongCat Flash Chat demonstrates exceptional performance across various benchmarks, particularly excelling in:

100+
tokens/second inference speed
#2
ArenaHard-V2 ranking
128K
token context window

Ideal Use Cases

🤖 AI Agents

Perfect for building sophisticated AI agents that require complex reasoning and tool usage

💬 Chat Applications

Ideal for chatbots and conversational AI that need to maintain context over long interactions

🔧 Tool Integration

Excellent for applications that need to integrate with external APIs and tools

📊 Data Analysis

Great for analyzing large datasets and generating insights from complex information

Get Started with LongCat Flash Chat

Experience the power of Meituan's revolutionary MoE model through OpenRouter's platform