diff --git a/.chloggen/1200.yaml b/.chloggen/1200.yaml
new file mode 100644
index 0000000000..9d40d16961
--- /dev/null
+++ b/.chloggen/1200.yaml
@@ -0,0 +1,6 @@
+change_type: enhancement
+component: gen_ai
+note: >
+ Rename `gen_ai.usage.prompt_tokens` to `gen_ai.usage.input_tokens` and `gen_ai.usage.completion_tokens` to `gen_ai.usage.output_tokens`
+ to align terminology between spans and metrics.
+issues: [ 1200 ]
diff --git a/docs/attributes-registry/gen-ai.md b/docs/attributes-registry/gen-ai.md
index 7030cb3bd3..753b0c35e1 100644
--- a/docs/attributes-registry/gen-ai.md
+++ b/docs/attributes-registry/gen-ai.md
@@ -6,6 +6,9 @@
# Gen AI
+- [Gen Ai](#gen-ai-attributes)
+- [Gen Ai Deprecated](#gen-ai-deprecated-attributes)
+
## Gen AI Attributes
This document defines the attributes used to describe telemetry in the context of Generative Artificial Intelligence (GenAI) Models requests and responses.
@@ -28,8 +31,8 @@ This document defines the attributes used to describe telemetry in the context o
| `gen_ai.response.model` | string | The name of the model that generated the response. | `gpt-4-0613` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `gen_ai.system` | string | The Generative AI product as identified by the client or server instrumentation. [3] | `openai` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `gen_ai.token.type` | string | The type of token being counted. | `input`; `output` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| `gen_ai.usage.completion_tokens` | int | The number of tokens used in the GenAI response (completion). | `180` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| `gen_ai.usage.prompt_tokens` | int | The number of tokens used in the GenAI input or prompt. | `100` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `gen_ai.usage.input_tokens` | int | The number of tokens used in the GenAI input (prompt). | `100` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `gen_ai.usage.output_tokens` | int | The number of tokens used in the GenAI response (completion). | `180` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** It's RECOMMENDED to format completions as JSON string matching [OpenAI messages format](https://platform.openai.com/docs/guides/text-generation)
@@ -53,3 +56,12 @@ For custom model, a custom friendly name SHOULD be used. If none of these option
| -------- | ------------------------------------------ | ---------------------------------------------------------------- |
| `input` | Input tokens (prompt, input, etc.) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `output` | Output tokens (completion, response, etc.) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+
+## Gen AI Deprecated 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` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)
Replaced by `gen_ai.usage.output_tokens` attribute. |
+| `gen_ai.usage.prompt_tokens` | int | Deprecated, use `gen_ai.usage.input_tokens` instead. | `42` | ![Deprecated](https://img.shields.io/badge/-deprecated-red)
Replaced by `gen_ai.usage.input_tokens` attribute. |
diff --git a/docs/gen-ai/gen-ai-spans.md b/docs/gen-ai/gen-ai-spans.md
index d2fb54b987..1615d18c48 100644
--- a/docs/gen-ai/gen-ai-spans.md
+++ b/docs/gen-ai/gen-ai-spans.md
@@ -57,8 +57,8 @@ These attributes track input data and metadata for a request to an GenAI model.
| [`gen_ai.response.finish_reasons`](/docs/attributes-registry/gen-ai.md) | string[] | Array of reasons the model stopped generating tokens, corresponding to each generation received. | `["stop"]` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`gen_ai.response.id`](/docs/attributes-registry/gen-ai.md) | string | The unique identifier for the completion. | `chatcmpl-123` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`gen_ai.response.model`](/docs/attributes-registry/gen-ai.md) | string | The name of the model that generated the response. [3] | `gpt-4-0613` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| [`gen_ai.usage.completion_tokens`](/docs/attributes-registry/gen-ai.md) | int | The number of tokens used in the GenAI response (completion). | `180` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| [`gen_ai.usage.prompt_tokens`](/docs/attributes-registry/gen-ai.md) | int | The number of tokens used in the GenAI input or prompt. | `100` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| [`gen_ai.usage.input_tokens`](/docs/attributes-registry/gen-ai.md) | int | The number of tokens used in the GenAI input (prompt). | `100` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| [`gen_ai.usage.output_tokens`](/docs/attributes-registry/gen-ai.md) | int | The number of tokens used in the GenAI response (completion). | `180` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** The name of the GenAI model a request is being made to. If the model is supplied by a vendor, then the value must be the exact name of the model requested. If the model is a fine-tuned custom model, the value should have a more specific name than the base model that's been fine-tuned.
diff --git a/model/registry/deprecated/gen-ai.yaml b/model/registry/deprecated/gen-ai.yaml
new file mode 100644
index 0000000000..ca6abd6732
--- /dev/null
+++ b/model/registry/deprecated/gen-ai.yaml
@@ -0,0 +1,17 @@
+groups:
+ - id: registry.gen_ai.deprecated
+ type: attribute_group
+ brief: Describes deprecated `gen_ai` attributes.
+ attributes:
+ - id: gen_ai.usage.prompt_tokens
+ type: int
+ stability: experimental
+ deprecated: Replaced by `gen_ai.usage.input_tokens` attribute.
+ brief: "Deprecated, use `gen_ai.usage.input_tokens` instead."
+ examples: [42]
+ - id: gen_ai.usage.completion_tokens
+ type: int
+ stability: experimental
+ deprecated: Replaced by `gen_ai.usage.output_tokens` attribute.
+ brief: "Deprecated, use `gen_ai.usage.output_tokens` instead."
+ examples: [42]
diff --git a/model/registry/gen-ai.yaml b/model/registry/gen-ai.yaml
index 2bbf16e7c4..06b994bfc0 100644
--- a/model/registry/gen-ai.yaml
+++ b/model/registry/gen-ai.yaml
@@ -90,12 +90,12 @@ groups:
type: string[]
brief: Array of reasons the model stopped generating tokens, corresponding to each generation received.
examples: ['stop']
- - id: usage.prompt_tokens
+ - id: usage.input_tokens
stability: experimental
type: int
- brief: The number of tokens used in the GenAI input or prompt.
+ brief: The number of tokens used in the GenAI input (prompt).
examples: [100]
- - id: usage.completion_tokens
+ - id: usage.output_tokens
stability: experimental
type: int
brief: The number of tokens used in the GenAI response (completion).
diff --git a/model/trace/gen-ai.yaml b/model/trace/gen-ai.yaml
index ef77733e83..1c2418efab 100644
--- a/model/trace/gen-ai.yaml
+++ b/model/trace/gen-ai.yaml
@@ -36,9 +36,9 @@ groups:
fine-tuned custom model, the value should have a more specific name than the base model that's been fine-tuned.
- ref: gen_ai.response.finish_reasons
requirement_level: recommended
- - ref: gen_ai.usage.prompt_tokens
+ - ref: gen_ai.usage.input_tokens
requirement_level: recommended
- - ref: gen_ai.usage.completion_tokens
+ - ref: gen_ai.usage.output_tokens
requirement_level: recommended
events:
- gen_ai.content.prompt
diff --git a/schema-next.yaml b/schema-next.yaml
index f87f1059d9..b2d310bd77 100644
--- a/schema-next.yaml
+++ b/schema-next.yaml
@@ -11,6 +11,11 @@ versions:
messaging.rocketmq.client_group: messaging.consumer.group.name
messaging.evenhubs.consumer.group: messaging.consumer.group.name
message.servicebus.destination.subscription_name: messaging.destination.subscription.name
+ # https://github.com/open-telemetry/semantic-conventions/pull/1200
+ - rename_attributes:
+ attribute_map:
+ gen_ai.usage.completion_tokens: gen_ai.usage.output_tokens
+ gen_ai.usage.prompt_tokens: gen_ai.usage.input_tokens
spans:
changes:
# https://github.com/open-telemetry/semantic-conventions/pull/1002