# Gen AI ## Gen Ai Attributes This document defines the attributes used to describe telemetry in the context of LLM (Large Language Models) requests and responses. | Attribute | Type | Description | Examples | Stability | | -------------------------------- | -------- | ------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------- | ---------------------------------------------------------------- | | `gen_ai.completion` | string | The full response received from the LLM. [1] | `[{'role': 'assistant', 'content': 'The capital of France is Paris.'}]` |  | | `gen_ai.prompt` | string | The full prompt sent to an LLM. [2] | `[{'role': 'user', 'content': 'What is the capital of France?'}]` |  | | `gen_ai.request.max_tokens` | int | The maximum number of tokens the LLM generates for a request. | `100` |  | | `gen_ai.request.model` | string | The name of the LLM a request is being made to. | `gpt-4` |  | | `gen_ai.request.temperature` | double | The temperature setting for the LLM request. | `0.0` |  | | `gen_ai.request.top_p` | double | The top_p sampling setting for the LLM request. | `1.0` |  | | `gen_ai.response.finish_reasons` | string[] | Array of reasons the model stopped generating tokens, corresponding to each generation received. | `stop` |  | | `gen_ai.response.id` | string | The unique identifier for the completion. | `chatcmpl-123` |  | | `gen_ai.response.model` | string | The name of the LLM a response was generated from. | `gpt-4-0613` |  | | `gen_ai.system` | string | The name of the LLM foundation model vendor. | `openai` |  | | `gen_ai.usage.completion_tokens` | int | The number of tokens used in the LLM response (completion). | `180` |  | | `gen_ai.usage.prompt_tokens` | int | The number of tokens used in the LLM prompt. | `100` |  | **[1]:** It's RECOMMENDED to format completions as JSON string matching [OpenAI messages format](https://platform.openai.com/docs/guides/text-generation) **[2]:** It's RECOMMENDED to format prompts as JSON string matching [OpenAI messages format](https://platform.openai.com/docs/guides/text-generation) `gen_ai.system` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used. | Value | Description | Stability | | -------- | ----------- | ---------------------------------------------------------------- | | `openai` | OpenAI |  |