diff --git a/src/services/api/openaiShim.test.ts b/src/services/api/openaiShim.test.ts
index a38828123..7d6a2bdd2 100644
--- a/src/services/api/openaiShim.test.ts
+++ b/src/services/api/openaiShim.test.ts
@@ -4130,6 +4130,38 @@ test('Cerebras: strips unsupported store on chat_completions (#1023)', async ()
   expect(requestBody?.store).toBeUndefined()
 })
 
+test('Local provider (vLLM/Ollama/etc.): strips unsupported store on chat_completions (#672)', async () => {
+  process.env.OPENAI_BASE_URL = 'http://localhost:8000/v1'
+  process.env.OPENAI_API_KEY = 'sk-local'
+
+  let requestBody: Record<string, unknown> | undefined
+  globalThis.fetch = (async (_input, init) => {
+    requestBody = JSON.parse(String(init?.body))
+    return new Response(
+      JSON.stringify({
+        id: 'chatcmpl-1',
+        model: 'qwen-3.5-27b',
+        choices: [
+          { message: { role: 'assistant', content: 'ok' }, finish_reason: 'stop' },
+        ],
+        usage: { prompt_tokens: 3, completion_tokens: 1, total_tokens: 4 },
+      }),
+      { headers: { 'Content-Type': 'application/json' } },
+    )
+  }) as FetchType
+
+  const client = createOpenAIShimClient({}) as OpenAIShimClient
+  await client.beta.messages.create({
+    model: 'qwen-3.5-27b',
+    system: 'you are local',
+    messages: [{ role: 'user', content: 'hi' }],
+    max_tokens: 64,
+    stream: false,
+  })
+
+  expect(requestBody?.store).toBeUndefined()
+})
+
 test('Groq: keeps max_completion_tokens and strips unsupported store', async () => {
   process.env.OPENAI_BASE_URL = 'https://api.groq.com/openai/v1'
   process.env.OPENAI_API_KEY = 'gsk-test'
diff --git a/src/services/api/openaiShim.ts b/src/services/api/openaiShim.ts
index a840dff06..704f7d7dd 100644
--- a/src/services/api/openaiShim.ts
+++ b/src/services/api/openaiShim.ts
@@ -1613,7 +1613,8 @@ class OpenAIShimMessages {
       (shimConfig.removeBodyFields ?? []).includes('store') ||
       isGeminiMode() ||
       hasGeminiApiHost(request.baseUrl) ||
-      hasCerebrasApiHost(request.baseUrl)
+      hasCerebrasApiHost(request.baseUrl) ||
+      isLocal
 
     if (
       shimConfig.maxTokensField === 'max_tokens' &&