NezhaGate is an OpenAI-compatible gateway for AI models. Change the base_url and API key in your existing code, and one endpoint gives you GPT, Claude, Gemini, Grok, DeepSeek, Kimi, GLM and Qwen for chat and image generation. Prices are below official rates, billing is pay-as-you-go, and you can pay by card or USDT. New accounts get free trial credits.