semantic-conventions/docs/attributes-registry/gen-ai.md

Gen AI

• GenAI Attributes
• Deprecated GenAI Attributes

GenAI Attributes

This document defines the attributes used to describe telemetry in the context of Generative Artificial Intelligence (GenAI) Models requests and responses.

Attribute	Type	Description	Examples	Stability
gen_ai.completion	string	The full response received from the GenAI model. [1]	[{'role': 'assistant', 'content': 'The capital of France is Paris.'}]
gen_ai.operation.name	string	The name of the operation being performed. [2]	chat; text_completion
gen_ai.prompt	string	The full prompt sent to the GenAI model. [3]	[{'role': 'user', 'content': 'What is the capital of France?'}]
gen_ai.request.frequency_penalty	double	The frequency penalty setting for the GenAI request.	0.1
gen_ai.request.max_tokens	int	The maximum number of tokens the model generates for a request.	100
gen_ai.request.model	string	The name of the GenAI model a request is being made to.	gpt-4
gen_ai.request.presence_penalty	double	The presence penalty setting for the GenAI request.	0.1
gen_ai.request.stop_sequences	string[]	List of sequences that the model will use to stop generating further tokens.	["forest", "lived"]
gen_ai.request.temperature	double	The temperature setting for the GenAI request.	0.0
gen_ai.request.top_k	double	The top_k sampling setting for the GenAI request.	1.0
gen_ai.request.top_p	double	The top_p sampling setting for the GenAI request.	1.0
gen_ai.response.finish_reasons	string[]	Array of reasons the model stopped generating tokens, corresponding to each generation received.	["stop"]; ["stop", "length"]
gen_ai.response.id	string	The unique identifier for the completion.	chatcmpl-123
gen_ai.response.model	string	The name of the model that generated the response.	gpt-4-0613
gen_ai.system	string	The Generative AI product as identified by the client or server instrumentation. [4]	openai
gen_ai.token.type	string	The type of token being counted.	input; output
gen_ai.usage.input_tokens	int	The number of tokens used in the GenAI input (prompt).	100
gen_ai.usage.output_tokens	int	The number of tokens used in the GenAI response (completion).	180

[1]: It's RECOMMENDED to format completions as JSON string matching OpenAI messages format

[2]: If one of the predefined values applies, but specific system uses a different name it's RECOMMENDED to document it in the semantic conventions for specific GenAI system and use system-specific name in the instrumentation. If a different name is not documented, instrumentation libraries SHOULD use applicable predefined value.

[3]: It's RECOMMENDED to format prompts as JSON string matching OpenAI messages format

[4]: The gen_ai.system describes a family of GenAI models with specific model identified by gen_ai.request.model and gen_ai.response.model attributes.

The actual GenAI product may differ from the one identified by the client. For example, when using OpenAI client libraries to communicate with Mistral, the gen_ai.system is set to openai based on the instrumentation's best knowledge.

For custom model, a custom friendly name SHOULD be used. If none of these options apply, the gen_ai.system SHOULD be set to _OTHER.

gen_ai.operation.name 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
chat	Chat completion operation such as OpenAI Chat API
text_completion	Text completions operation such as OpenAI Completions API (Legacy)

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
anthropic	Anthropic
cohere	Cohere
openai	OpenAI
vertex_ai	Vertex AI

gen_ai.token.type 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
input	Input tokens (prompt, input, etc.)
output	Output tokens (completion, response, etc.)

Deprecated GenAI Attributes

Describes deprecated gen_ai attributes.

Attribute	Type	Description	Examples	Stability
gen_ai.usage.completion_tokens	int	Deprecated, use gen_ai.usage.output_tokens instead.	42	Replaced by gen_ai.usage.output_tokens attribute.
gen_ai.usage.prompt_tokens	int	Deprecated, use gen_ai.usage.input_tokens instead.	42	Replaced by gen_ai.usage.input_tokens attribute.