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Routing

Python Multi-Model Smart Routing: One API Key for All AI Models

Why Multi-Model Smart Routing? # In 2026, the AI model ecosystem has matured dramatically. OpenAI shipped GPT-5 and GPT-5-mini, Anthropic launched Claude Opus 4 and Claude Sonnet 4, Google’s Gemini 2.5 Pro is widely available, and Chinese models like DeepSeek-V4, Qwen3-235B, and GLM-5 are evolving at breakneck speed. As a developer, you probably face these pain points: