AI Assistant
AI Assistant provides AI-powered features for software development. It can explain code, answer questions about code fragments, provide code suggestions, generate documentation, commit messages, and much more.
The AI Assistant plugin is bundled, but not enabled in CLion by default. It will not be active and will not have access to your code unless you acquire a JetBrains AI Service license and give your explicit consent to JetBrains AI Terms of Service.
JetBrains AI Service licensing
The AI Assistant plugin is powered by the JetBrains AI Service. This service transparently connects you, as a product user, to different large language models (LLMs) and enables specific AI-powered features within many JetBrains products.
If you have an active CLion subscription, you can acquire the AI Assistant license at the JetBrains AI Service website. Before acquiring the license, you can sign up for a limited trial (available only for users with commercial and personal paid CLion licenses). The AI Assistant license or your free trial will be linked to your JetBrains Account.
For more information about licensing plans and features' availability, refer to the FAQ at JetBrains AI Service website.
If you need any help regarding your license, you can contact our support team.
Enable AI Assistant plugin
Activate AI Assistant license
After acquiring the AI Assistant license, you need to activate it in CLion to enable AI Assistant.
If you are not logged in to JetBrains account, in the main menu, go to .
In the Licenses dialog, select AI Assistant and click Log in to JetBrains Account.
On the JetBrains Account website that opens, enter your credentials. After the authorization, close the page and go back to CLion.
In the same Licenses dialog, click Activate to activate the AI Assistant license.
If your license is not shown on the list, click Refresh license list.
After activating the license, click
AI Assistant on the right toolbar to open the AI Assistant tool window. 
Click Start Using AI Assistant.
For more information about enabling and disabling AI Assistant on a company level, refer to How to enable AI Assistant for companies.
You can disable AI Assistant any time you want.
Start free trial
Before acquiring the license, you can sign up for a limited trial (available only for users with commercial and personal paid CLion licenses).
If you are not logged in to JetBrains account, in the main menu, go to .
In the Licenses dialog, select AI Assistant and click Log in to JetBrains Account.
On the JetBrains Account website that opens, enter your credentials. After the authorization, close the page and go back to CLion.
On the right toolbar, click
AI Assistant and then Start Free Trial. 
Use AI Assistant features
Here is how you can work with AI Assistant:
Chat with AI Assistant to ask questions related to your project or iterate on a task.
How we handle your code and data
When you use AI features, CLion needs to send your requests and pieces of your code to the LLM (Large Language Model) provider. Besides the prompts you type, it may send additional details, such as file types, frameworks used, and any other information that may be necessary for providing context to the LLM.
In addition, CLion builds with the AI Assistant plugin perform opt-in collection of detailed data about the usage of AI features, including the full communication between you and the LLM (both text and code fragments). This data is kept strictly confidential and is used by JetBrains for product improvement purposes only. It is never shared with any external parties, and it will not be used for training any ML models that generate code or text, or revealed in any form to any other users. The option that controls detailed data collection can be found in the IDE Settings under and is disabled by default.
For more information about our data collection policies, refer to Data Collection and Use Policy.