AI agents, AI operations, and smart search in BRIX AI are powered by large language models (LLMs). These models generate responses to queries, analyze files, describe images, process text for semantic search, and rank search results to improve accuracy.
Connect a provider to BRIX AI to use its language models when configuring product components. You can connect one or multiple providers of various types:
- Cloud model providers, such as OpenAI, Yandex Cloud, Giga, Infinity, and DeepInfra.
- Services with an OpenAI-compatible API.
- Your vLLM servers with deployed models.
When you connect a provider, all its preconfigured language models become available in BRIX AI. You can also add fine-tuned models—those additionally trained and customized on the provider side for your company's specific tasks—to the list of available models.
Set up a connection to a model provider
In the BRIX AI left menu, click the provider icon 
to open the Model Providers page.
- Next to the page title, click the plus icon.
- Fill in the fields:
- Name. Enter the name to display in the provider list.
- Provider. Select the service that provides language models.
- API key. Paste the key obtained from the provider. It will be used to authenticate BRIX AI requests. Also fill in an additional option depending on the selected provider:
- Base URL. Enter the base address used to access the provider server.
- Folder ID. For Yandex Cloud, specify the folder ID of the service account used to send requests.
- Scope. For Giga, specify which API version requests are made to.
- Click Save.
The provider will be added to the list on the Model Providers page. All out-of-the-box models it provides will become available for selection when configuring BRIX AI components.
Configure access to custom language models
If you configured custom models trained for your company's tasks on the provider side, you can connect them in BRIX AI. They will appear in the provider's model list and become available when configuring AI agents, AI operations, and smart search. To do this:
- On the Model Providers page, select a provider to open its settings.
- Next to the Additional Models field, click the plus icon and fill in the fields:
- Name. The unique name of the model specified when training it on the provider side, matching its API access identifier.
- Model type: Select the purpose of the model.
- LLM. Generates responses to queries. Models of this type are available when configuring AI agents and AI operations.
- Embedding. Converts text into a vector format to obtain embeddings for context-aware search. Models of this type are available in smart search indexing settings.
- Rerank. Sorts search results by relevance. Models of this type are available in smart search ranking settings.
- Context window length. The maximum message history length the model can consider when generating a response, specified in tokens.
- Click Add.
The settings window will update to show an entry for the added model in the table. You can remove a model by clicking the trash icon next to it, or delete all additional models for the provider by clicking Clear in the upper-right corner of the table.
- After adding all the models, click Save.
Actions with model providers
The Model Providers page displays all connected providers. Click the three dots icon in a provider's row to perform actions:
- Edit. Edit the provider connection settings.
- Delete. Permanently remove the provider from the list. If its models are already used in BRIX AI components, replace them with models from another provider.
- Enabled, Disabled. By default, a provider's models are ready to use as soon as it is added. You can temporarily disable access to a provider—for example, during technical outages. To keep BRIX AI components running, select models from a different provider in their settings.