# The complete Zen API catalog — Hanzo AI > 45 foundation models across language, code, vision, image, audio, and retrieval. Zen MoDE (Mixture of Diverse Experts) architecture. From $0.015/MTok. 45 Models — Zen3, Zen4 & Zen5 # Zen ModelsComplete API Catalog 45 foundation models from [Zoo Labs Foundation](https://zoo.industries) across language, code, vision, image, audio, and retrieval. Zen MoDE (Mixture of Diverse Experts) architecture. From $0.015/MTok. 45 Models 2M Max Context $0.015/MTok From MoE + Dense Architectures 7 Modalities ultra maxultrapro maxprostarter [Explore Models](#zen5)[Full Pricing](https://hanzo.ai/pricing)[Get API Key](https://console.hanzo.ai) Loading live pricing... ## Quick Start Drop-in OpenAI-compatible API. Switch models with one line. python ``` from hanzoai import Hanzo client = Hanzo() # Use any Zen model response = client.chat.completions.create( model="zen4", # or zen4-coder, zen3-vl, etc. messages=[{"role": "user", "content": "Hello!"}], ) print(response.choices[0].message.content) ``` ## Ready to build with Zen? All 45 Zen models available via OpenAI-compatible API. Start building today. [Get Started](https://console.hanzo.ai)[Try Hanzo Dev](https://hanzo.ai/dev)[View Pricing](https://hanzo.ai/pricing)