DuckDuck API offers a unified interface for accessing more than 400 AI models, such as GPT, Claude, and Gemini, through endpoints like https://duck2api.com/v1/chat/completions. It features multiple pricing groups (e.g., default at 3x, Gemini at 0.3x) with a fixed 1:1 USD to CNY exchange rate. Models include variants like free (rate-limited), beta (with content moderation), nitro (faster response), and extended (larger context windows). Use cases range from general AI tasks to cost-sensitive applications, with support for functions and image recognition. Note: Servers are located in the US, which may affect speed, and users must comply with local regulations like China's Generative AI Management Measures.
