LLM API Speed Test
Supporting OpenAI, DeepSeek, Silicon Flow, Tencent Cloud and more. Help developers optimize AI application performance through comprehensive speed testing and analysis
Professional API Speed Testing Tool
Help developers optimize AI application performance through comprehensive speed testing and analysis
- Real-time Speed Testing
Accurately measure API response times through comprehensive testing with multiple prompts
- Custom Endpoint Support
Test API performance with custom base URLs and API keys, supporting both official and proxy endpoints
- Performance Analytics
Detailed performance metrics including first token latency, tokens per second, and total processing time
- Real-time Streaming Results
Monitor test progress in real-time with streaming results for each prompt evaluation
Frequently Asked Questions
Learn more about LM Speed
How does LM Speed conduct performance testing?
LM Speed employs a five-round continuous stress testing mechanism. Token calculations are performed accurately using tiktoken.
How to compare performance between different API providers?
Through standardized performance testing and ranking features, you can visually compare the performance of different providers' APIs. The system automatically analyzes and displays comparative data for various performance metrics, helping you choose the most suitable model and provider.
Is long-term performance monitoring supported?
Coming soon
