What This Articles Helps You Do
This article explains how to select and change AI models in LawY Chat. It also outlines the differences between available models to help you choose the most suitable option for your task.
1. How to Change the AI Model
You can now choose which AI model powers your experience, directly from the chat interface to match the right capability to your task.
Select any Matter
Click + New to begin a new conversation.
Locate the Model Selector Dropdown menu
Select your preferred model from the list:
GPT 5.4 - Instant (Default)
GPT 5.4 - Thinking
Claude 4.6 Sonnet
Claude 4.6 Opus
The selected model will be applied immediately to your chat session
2. Available Models and Their Strengths
GPT 5.4 - Instant
Best for everyday legal tasks
Fast and reliable performance
Ideal for drafting, summarising, and general research
Recommended for most general tasks in LawY
GPT 5.4 - Thinking
Stronger reasoning and deeper legal analysis
Optimal for complex legal drafting and multi-step reasoning
Ideal for detailed and high-consideration tasks
Claude 4.6 Sonnet
Balanced speed and quality
Suitable for most legal tasks
Strong for document review and drafting
Claude 4.6 Opus
Most advanced and capable model
Best for complex reasoning and large documents
Ideal for high-stakes, in-depth analysis
3. Choosing the Right Model
Use GPT 5.4 - Instant for quick, everyday task
Use GPT 5.4 - Thinking for complex reasoning or drafting
Use Claude 4.6 Sonnet for a balance of speed and quality
Use Claude 4.6 Opus for the most advanced and detailed analysis
4. Why Use Model Selection
Gives you direct control over which model handles your queries, removing guesswork
Allows you to switch between models as your needs change without leaving your workflow
Improves output quality by matching the model to the complexity of the task
Ensures you are using the most suitable model for accurate and reliable responses
5. What It Does for You
Displays all available AI models in one place: GPT 5.4 Instant, GPT 5.4 Thinking, Claude 4.6 Sonnet, and Claude 4.6 Opus
Lets you select a model with a single click directly in the chat interface
Shows your currently active model at the bottom of the chat window for full visibility
Keeps model selection integrated into your workflow so you don’t need to navigate away