Frontier intelligence
Choose the best AI model for every task – OpenAI, Anthropic, Google, and open-source. Build your AI knowledge base.
Zo runs on the most capable AI models in the world.
Frontier intelligence
Models from Anthropic, OpenAI, Google, and open-source labs – with new models added as they ship.
No lock-in
Switch between models anytime. Different models have different strengths: some are better at writing, others at coding, others at working with images or long documents. Use the best one for the task at hand.
Bring your own
Already have API keys? Use them. Zo supports any OpenAI-compatible endpoint, so you can connect to your preferred provider – including self-hosted and open-source models. Learn how to connect your own keys →
Build your AI knowledge base
Your conversations, files, and saved research become a persistent knowledge base. Zo learns your context over time.
Your AI, your choice.