GenAI: define conventions for embeddings operations

CONTRIBUTING.md

@@ -114,7 +114,7 @@ The YAML (model definition) and Markdown (documentation) files are organized in
 ```
 
 All attributes must be defined in the folder matching their root namespace under
-`/{root-namespace}/*registry.yaml` file.
+`/model/{root-namespace}/registry.yaml` file.
 
 Corresponding markdown files are auto-generated (see [Update the markdown files](#2-update-the-markdown-files))
 in `/docs/attribute_registry` folder.

docs/attributes-registry/gen-ai.md

@@ -16,7 +16,8 @@ This document defines the attributes used to describe telemetry in the context o
 
 | Attribute | Type | Description | Examples | Stability |
 |---|---|---|---|---|
-| <a id="gen-ai-operation-name" href="#gen-ai-operation-name">`gen_ai.operation.name`</a> | string | The name of the operation being performed. [1] | `chat`; `text_completion` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| <a id="gen-ai-operation-name" href="#gen-ai-operation-name">`gen_ai.operation.name`</a> | string | The name of the operation being performed. [1] | `chat`; `text_completion`; `embeddings` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| <a id="gen-ai-request-encoding-formats" href="#gen-ai-request-encoding-formats">`gen_ai.request.encoding_formats`</a> | string[] | The encoding formats requested in an embeddings operation, if specified. [2] | `["base64"]`; `["float", "binary"]` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-request-frequency-penalty" href="#gen-ai-request-frequency-penalty">`gen_ai.request.frequency_penalty`</a> | double | The frequency penalty setting for the GenAI request. | `0.1` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-request-max-tokens" href="#gen-ai-request-max-tokens">`gen_ai.request.max_tokens`</a> | int | The maximum number of tokens the model generates for a request. | `100` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-request-model" href="#gen-ai-request-model">`gen_ai.request.model`</a> | string | The name of the GenAI model a request is being made to. | `gpt-4` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
@@ -28,14 +29,16 @@ This document defines the attributes used to describe telemetry in the context o
 | <a id="gen-ai-response-finish-reasons" href="#gen-ai-response-finish-reasons">`gen_ai.response.finish_reasons`</a> | string[] | Array of reasons the model stopped generating tokens, corresponding to each generation received. | `["stop"]`; `["stop", "length"]` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-response-id" href="#gen-ai-response-id">`gen_ai.response.id`</a> | string | The unique identifier for the completion. | `chatcmpl-123` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-response-model" href="#gen-ai-response-model">`gen_ai.response.model`</a> | string | The name of the model that generated the response. | `gpt-4-0613` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| <a id="gen-ai-system" href="#gen-ai-system">`gen_ai.system`</a> | string | The Generative AI product as identified by the client or server instrumentation. [2] | `openai` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| <a id="gen-ai-system" href="#gen-ai-system">`gen_ai.system`</a> | string | The Generative AI product as identified by the client or server instrumentation. [3] | `openai` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-token-type" href="#gen-ai-token-type">`gen_ai.token.type`</a> | string | The type of token being counted. | `input`; `output` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-usage-input-tokens" href="#gen-ai-usage-input-tokens">`gen_ai.usage.input_tokens`</a> | int | The number of tokens used in the GenAI input (prompt). | `100` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | <a id="gen-ai-usage-output-tokens" href="#gen-ai-usage-output-tokens">`gen_ai.usage.output_tokens`</a> | int | The number of tokens used in the GenAI response (completion). | `180` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1] `gen_ai.operation.name`:** 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.
 
-**[2] `gen_ai.system`:** The `gen_ai.system` describes a family of GenAI models with specific model identified
+**[2] `gen_ai.request.encoding_formats`:** In some APIs the encoding formats are called embedding types. In some APIs the request accepts a single format.
+
+**[3] `gen_ai.system`:** 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.
@@ -50,6 +53,7 @@ If none of these options apply, the `gen_ai.system` SHOULD be set to `_OTHER`.
 | Value  | Description | Stability |
 |---|---|---|
 | `chat` | Chat completion operation such as [OpenAI Chat API](https://platform.openai.com/docs/api-reference/chat) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `embeddings` | Embeddings operation such as [OpenAI Create embeddings API](https://platform.openai.com/docs/api-reference/embeddings/create) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `text_completion` | Text completions operation such as [OpenAI Completions API (Legacy)](https://platform.openai.com/docs/api-reference/completions) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 `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.

docs/gen-ai/azure-ai-inference.md

@@ -23,11 +23,12 @@ The Semantic Conventions for [Azure AI Inference](https://learn.microsoft.com/az
 
 | Attribute  | Type | Description  | Examples  | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
 |---|---|---|---|---|---|
-| [`gen_ai.operation.name`](/docs/attributes-registry/gen-ai.md) | string | The name of the operation being performed. [1] | `chat`; `text_completion` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| [`gen_ai.operation.name`](/docs/attributes-registry/gen-ai.md) | string | The name of the operation being performed. [1] | `chat`; `text_completion`; `embeddings` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`error.type`](/docs/attributes-registry/error.md) | string | Describes a class of error the operation ended with. [2] | `timeout`; `java.net.UnknownHostException`; `server_certificate_invalid`; `500` | `Conditionally Required` if the operation ended in an error | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
 | [`gen_ai.request.model`](/docs/attributes-registry/gen-ai.md) | string | The name of the GenAI model a request is being made to. [3] | `gpt-4` | `Conditionally Required` If available. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`server.port`](/docs/attributes-registry/server.md) | int | GenAI server port. [4] | `80`; `8080`; `443` | `Conditionally Required` If not default (443). | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
 | [`az.namespace`](/docs/attributes-registry/azure.md) | string | [Azure Resource Provider Namespace](https://learn.microsoft.com/azure/azure-resource-manager/management/azure-services-resource-providers) as recognized by the client. [5] | `Microsoft.CognitiveServices` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| [`gen_ai.request.encoding_formats`](/docs/attributes-registry/gen-ai.md) | string[] | The encoding formats requested in an embeddings operation, if specified. [6] | `["base64"]`; `["float", "binary"]` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`gen_ai.request.frequency_penalty`](/docs/attributes-registry/gen-ai.md) | double | The frequency penalty setting for the GenAI request. | `0.1` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`gen_ai.request.max_tokens`](/docs/attributes-registry/gen-ai.md) | int | The maximum number of tokens the model generates for a request. | `100` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`gen_ai.request.presence_penalty`](/docs/attributes-registry/gen-ai.md) | double | The presence penalty setting for the GenAI request. | `0.1` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
@@ -36,10 +37,10 @@ The Semantic Conventions for [Azure AI Inference](https://learn.microsoft.com/az
 | [`gen_ai.request.top_p`](/docs/attributes-registry/gen-ai.md) | double | The top_p sampling setting for the GenAI request. | `1.0` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`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"]`; `["stop", "length"]` | `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. [6] | `gpt-4-0613` | `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. [7] | `gpt-4-0613` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | [`gen_ai.usage.input_tokens`](/docs/attributes-registry/gen-ai.md) | int | The number of prompt tokens as reported in the usage prompt_tokens property of the response. | `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 completion tokens as reported in the usage completion_tokens property of the response. | `180` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
-| [`server.address`](/docs/attributes-registry/server.md) | string | GenAI server address. [7] | `example.com`; `10.1.2.80`; `/tmp/my.sock` | `Recommended` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
+| [`server.address`](/docs/attributes-registry/server.md) | string | GenAI server address. [8] | `example.com`; `10.1.2.80`; `/tmp/my.sock` | `Recommended` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
 
 **[1] `gen_ai.operation.name`:** 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.
 
@@ -53,9 +54,11 @@ Instrumentations SHOULD document the list of errors they report.
 
 **[5] `az.namespace`:** When `az.namespace` attribute is populated, it MUST be set to `Microsoft.CognitiveServices` for all operations performed by Azure AI Inference clients.
 
-**[6] `gen_ai.response.model`:** If available. The name of the GenAI model that provided the response. If the model is supplied by a vendor, then the value must be the exact name of the model actually used. 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.
+**[6] `gen_ai.request.encoding_formats`:** In some APIs the encoding formats are called embedding types. In some APIs the request accepts a single format.
 
-**[7] `server.address`:** When observed from the client side, and when communicating through an intermediary, `server.address` SHOULD represent the server address behind any intermediaries, for example proxies, if it's available.
+**[7] `gen_ai.response.model`:** If available. The name of the GenAI model that provided the response. If the model is supplied by a vendor, then the value must be the exact name of the model actually used. 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.
+
+**[8] `server.address`:** When observed from the client side, and when communicating through an intermediary, `server.address` SHOULD represent the server address behind any intermediaries, for example proxies, if it's available.
 
 `error.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.
 
@@ -68,6 +71,7 @@ Instrumentations SHOULD document the list of errors they report.
 | Value  | Description | Stability |
 |---|---|---|
 | `chat` | Chat completion operation such as [OpenAI Chat API](https://platform.openai.com/docs/api-reference/chat) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `embeddings` | Embeddings operation such as [OpenAI Create embeddings API](https://platform.openai.com/docs/api-reference/embeddings/create) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 | `text_completion` | Text completions operation such as [OpenAI Completions API (Legacy)](https://platform.openai.com/docs/api-reference/completions) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
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