genai_extract_assistant_response

The genai_extract_assistant_response function extracts the assistant’s response from a GenAI messages array. It returns the content of the last message with the 'assistant' role, which typically contains the AI model’s generated response to the user.

You can use this function to analyze AI responses, evaluate response quality, perform sentiment analysis on AI outputs, or track specific response patterns for monitoring and debugging.

Usage

Syntax

genai_extract_assistant_response(messages)

Parameters

Returns

Returns a string containing the content of the last assistant message in the conversation, or an empty string if no assistant message is found.

Example

Extract the assistant's response from a GenAI conversation.

Query

['otel-demo-genai']
| extend ai_response = genai_extract_assistant_response(['attributes.gen_ai.input.messages'])
| where strlen(ai_response) > 0
| project _time, ai_response
| limit 3

Output

This query extracts AI responses, helping you analyze response quality and patterns.

List of related functions

• genai_extract_user_prompt: Extracts the user's prompt. Use this to analyze what users are asking.
• genai_extract_system_prompt: Extracts the system prompt. Use this to understand how the AI is configured.
• genai_get_content_by_role: Gets content by any role. Use this when you need messages from roles other than assistant.
• genai_concat_contents: Concatenates all message contents. Use this when you need the full conversation instead of just the assistant's response.
• genai_has_tool_calls: Checks for tool calls in messages. Use this to detect when the assistant made function calls.

Other query languages