How to Choose an AI Model in Harvey

Learn how to select a specific model in Assistant and Vault.

Last updated: Dec 19, 2025


Overview

The landscape of AI models is always evolving, but there can consistently be a best model system—one that leverages multiple models to maximize value for clients. Harvey is a multi-model provider platform designed to deliver the best model for each use case, offering models from OpenAI, Anthropic (Claude model suite), and Google (Gemini model suite) to support a wide range of needs within the product.


Using Models and Options

By default, Harvey automatically uses the best model for the type of work you’re doing. For most users, this happens behind the scenes. You don’t need to choose a model or change how you work. Harvey handles model selection for you.

If you’re an advanced user and want the option to choose a specific model, admins can enable our model selector feature in your workspace. This gives you the flexibility to select a model in Assistant and Vault.


Select a Model in Assistant

To choose a model in Assistant:

  1. Click the Customize button.
  2. Select your preferred model.
  3. Click Ask Harvey to submit your query.
Selecting the model in Assistant composer

Select a Model in a Vault Review Table

To choose a model in a review table:

  1. Create a new column query.
  2. Use the Model dropdown to select a different model.
Select the model from Vault dropdown.

FAQs