diff --git a/js/plugins/compat-oai/src/audio.ts b/js/plugins/compat-oai/src/audio.ts
index 9113856fd0..671f9b5736 100644
--- a/js/plugins/compat-oai/src/audio.ts
+++ b/js/plugins/compat-oai/src/audio.ts
@@ -189,7 +189,7 @@ export function defineCompatOpenAISpeechModel<
 }): ModelAction {
   const { ai, name, client, modelRef, requestBuilder } = params;
 
-  const model = name.split('/').pop();
+  const model = name.split('/').slice(1).join('/');
   return ai.defineModel(
     {
       name,
@@ -351,7 +351,7 @@ export function defineCompatOpenAITranscriptionModel<
       configSchema: modelRef?.configSchema,
     },
     async (request, { abortSignal }) => {
-      const modelName = name.split('/').pop();
+      const modelName = name.split('/').slice(1).join('/');
       const params = toSttRequest(modelName!, request, requestBuilder);
       // Explicitly setting stream to false ensures we use the non-streaming overload
       const result = await client.audio.transcriptions.create(
diff --git a/js/plugins/compat-oai/src/embedder.ts b/js/plugins/compat-oai/src/embedder.ts
index 7ba81f7cb6..4b095458cd 100644
--- a/js/plugins/compat-oai/src/embedder.ts
+++ b/js/plugins/compat-oai/src/embedder.ts
@@ -40,7 +40,7 @@ export function defineCompatOpenAIEmbedder(params: {
   embedderRef?: EmbedderReference;
 }): EmbedderAction {
   const { ai, name, client, embedderRef } = params;
-  const model = name.split('/').pop();
+  const model = name.split('/').slice(1).join('/');
   return ai.defineEmbedder(
     {
       name,
diff --git a/js/plugins/compat-oai/src/image.ts b/js/plugins/compat-oai/src/image.ts
index 8611d9662b..4dcb8a3ce1 100644
--- a/js/plugins/compat-oai/src/image.ts
+++ b/js/plugins/compat-oai/src/image.ts
@@ -127,7 +127,7 @@ export function defineCompatOpenAIImageModel<
   requestBuilder?: ImageRequestBuilder;
 }): ModelAction<CustomOptions> {
   const { ai, name, client, modelRef, requestBuilder } = params;
-  const model = name.split('/').pop();
+  const model = name.split('/').slice(1).join('/');
 
   return ai.defineModel(
     {
diff --git a/js/plugins/compat-oai/src/model.ts b/js/plugins/compat-oai/src/model.ts
index 51a9596650..9a90d0de68 100644
--- a/js/plugins/compat-oai/src/model.ts
+++ b/js/plugins/compat-oai/src/model.ts
@@ -492,7 +492,7 @@ export function defineCompatOpenAIModel<
   requestBuilder?: ModelRequestBuilder;
 }): ModelAction {
   const { ai, name, client, modelRef, requestBuilder } = params;
-  const modelName = name.split('/').pop();
+  const modelName = name.split('/').slice(1).join('/');
 
   return ai.defineModel(
     {