diff --git a/docs/en/observability/observability-ai-assistant.asciidoc b/docs/en/observability/observability-ai-assistant.asciidoc
index 7ea143dca0..c7ecd0595e 100644
--- a/docs/en/observability/observability-ai-assistant.asciidoc
+++ b/docs/en/observability/observability-ai-assistant.asciidoc
@@ -41,6 +41,15 @@ The AI assistant requires the following:
 ** AWS Bedrock, specifically the Anthropic Claude models.
 * The knowledge base requires a 4 GB {ml} node.
 
+[IMPORTANT]
+====
+The free tier offered by third-party generative AI provider may not be sufficient for the proper functioning of the AI assistant.
+In most cases, a paid subscription to one of the supported providers is required.
+
+The Observability AI assistant doesn't support connecting to a private LLM.
+Elastic doesn't recommend using private LLMs with the Observability AI assistant.
+====
+
 [IMPORTANT]
 ====
 In {ecloud} or {ece}, if you have Machine Learning autoscaling enabled, Machine Learning nodes will be started when using the knowledge base and AI Assistant. Therefore using these features will incur additional costs.