diff --git a/.chloggen/trentm-az.ai.openai-value-fix.yaml b/.chloggen/trentm-az.ai.openai-value-fix.yaml
new file mode 100644
index 0000000000..c3865577b5
--- /dev/null
+++ b/.chloggen/trentm-az.ai.openai-value-fix.yaml
@@ -0,0 +1,22 @@
+# Use this changelog template to create an entry for release notes.
+#
+# If your change doesn't affect end users you should instead start
+# your pull request title with [chore] or use the "Skip Changelog" label.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the area of concern in the attributes-registry, (e.g. http, cloud, db)
+component: gen_ai
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Restore the deprecated `az.ai.openai` enum value of `gen_ai.system`.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+# The values here must be integers.
+issues: [2486]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: It was deprecated in v1.36.0, but its value was accidentally changed, which could have removed it from semantic-conventions generated code.
diff --git a/model/gen-ai/registry.yaml b/model/gen-ai/registry.yaml
index d8ac5f414e..d2bcdfd104 100644
--- a/model/gen-ai/registry.yaml
+++ b/model/gen-ai/registry.yaml
@@ -68,7 +68,7 @@ groups:
               brief: 'Azure AI Inference'
             - id: az.ai.openai
               stability: development
-              value: "azure.ai.openai"
+              value: "az.ai.openai"
               brief: 'Azure OpenAI'
               deprecated: "Replaced by azure.ai.openai"
             - id: ibm.watsonx.ai