Overview
Julius lets you choose which AI model powers your analysis. Use the Model Selector in the chat dropdown to switch between models depending on your task. Models are split into two groups: Julius models (tuned for data analysis) and General models (third-party models from OpenAI, Anthropic, and Google).Julius models
Julius models are purpose-built for data work. They’re the default and the best starting point for most tasks.| Model | Available on | Best for |
|---|---|---|
| Julius 1.0 Lite | All plans | Quick questions and simple lookups |
| Julius 1.0 | Pro, Business, Enterprise | Most questions and everyday analysis |
| Julius 1.0 Max | Pro, Business, Enterprise | Complex, multi-step analysis |
General models
You can also use third-party models directly. These are useful when you want a different reasoning style or want to compare outputs.| Model | Available on | Description |
|---|---|---|
| GPT-5.2 | Pro, Business, Enterprise | OpenAI’s most capable model |
| Claude Sonnet 4.6 | Pro, Business, Enterprise | Anthropic’s balanced model for most tasks |
| Claude Opus 4.6 | Business, Enterprise | Anthropic’s most powerful model |
| Gemini 3 Pro | Pro, Business, Enterprise | Google’s most capable model |
Plan availability can change. Check your workspace settings for the most current details.
Code environment
The model selector also includes your code environment settings:- Sandbox is the container where Julius runs code. You can reset, delete, or expand resources (RAM/CPU) from here.
- Code language lets you switch between Python and R.
Choosing the right model
- Start with Julius 1.0 unless you have a specific reason to switch. It’s tuned for data analysis and handles most tasks well.
- Use Julius 1.0 Max for complex prompts that involve multiple steps or large datasets.
- Use Julius 1.0 Lite when you need a fast answer to a simple question.
- Try a General model for a different reasoning style, or to compare outputs across providers.