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OneBrain multi-model intelligence
Atlas and Leo are OneBrain auto-routers—not standalone AI models. Atlas selects from flagship models for demanding tasks. Leo selects from smaller, faster models for everyday work. Prefer direct control? Choose an individual model yourself.
Why use an auto-router
Different tasks benefit from different models. Atlas and Leo handle model selection for you, routing your request to a model suited to the task. They are a way to access models automatically, not new underlying models. You can also bypass automatic selection and choose a model directly.
Describe what you need, then choose Atlas for demanding tasks or Leo for everyday work.
Your auto-router selects a model from its available model pool. You do not need to compare providers before every request.
Read the response in your OneBrain conversation. Prefer a specific model? Select it directly instead of using an auto-router.
Choose your OneBrain
Both automatically select models rather than combining them into a new model. Atlas routes across flagship models; Leo routes across smaller, faster models. Individual model selection remains your choice.
Most capable
Atlas is the flagship auto-router. It selects a model suited to your request from available flagship models for strategy, research, coding and demanding reasoning. Atlas handles the selection; the selected model handles the response.
Fast & efficient
Leo is the everyday auto-router. It selects from smaller, faster models for writing, summaries and daily questions, prioritizing speed and efficiency without requiring you to pick a model each time.
Simple comparison
Multi-model is the easiest default. Single-model access is still available when you already know exactly what you want.
Prefer one specific model?
Atlas and Leo save you from finding the best model yourself. But if you already prefer one provider, ChatGPT, Claude, Gemini, Grok and Perplexity are also available to buy and use directly inside the same workspace.
Reasoning, coding and versatile creation
Choose ChatGPT
Long documents and nuanced writing
Choose Claude
Multimodal understanding and analysis
Choose Gemini
Direct thinking and fresh perspectives
Choose Grok
Web research and source-led answers
Choose PerplexityPrefer automatic selection? Choose Leo for everyday tasks or Atlas for flagship-model routing.
One workspace. Your choice.
Use Atlas or Leo to automatically select a model for your task. Or choose an available individual model yourself, with access and usage based on your plan.
Start using OneBrain