diff --git a/common/adapters.ts b/common/adapters.ts
index f337b1ef9..eb8bae192 100644
--- a/common/adapters.ts
+++ b/common/adapters.ts
@@ -150,6 +150,7 @@ export const THIRDPARTY_HANDLERS: { [svc in ThirdPartyFormat]: AIAdapter } = {
   gemini: 'kobold',
   arli: 'kobold',
   'lm-studio': 'openai',
+  orcarouter: 'openai',
 }
 
 export const BASIC_PROMPT_ONLY: { [svc in ThirdPartyFormat]?: boolean } = {
@@ -176,6 +177,7 @@ export const THIRDPARTY_FORMATS = [
   'arli',
   'gemini',
   'lm-studio',
+  'orcarouter',
 ] as const
 
 export const AI_ADAPTERS = [
@@ -382,6 +384,7 @@ export const FORMAT_LABEL: { [key in ThirdPartyFormat]: string } = {
   tabby: 'TabbyAPI',
   vllm: 'vLLM',
   'lm-studio': 'LM Studio',
+  orcarouter: 'OrcaRouter',
 }
 
 export const INSTRUCT_SERVICES: { [key in AIAdapter]?: boolean } = {
diff --git a/common/requests/util.ts b/common/requests/util.ts
index 1f3c89027..f8969bdbb 100644
--- a/common/requests/util.ts
+++ b/common/requests/util.ts
@@ -204,6 +204,13 @@ export function getOaiCompatibleUrl(
   preset: Partial<AppSchema.GenSettings>,
   isThirdParty?: boolean
 ) {
+  // OrcaRouter is an OpenAI-compatible gateway with a fixed endpoint. When its
+  // format is selected without a custom URL, default to the OrcaRouter API so
+  // users only need to provide their API key.
+  if (isThirdParty && preset.thirdPartyFormat === 'orcarouter' && !preset.thirdPartyUrl) {
+    return { url: 'https://api.orcarouter.ai/v1', changed: true }
+  }
+
   if (isThirdParty && preset.thirdPartyUrl) {
     if (!preset.providerId && preset.thirdPartyUrlNoSuffix) {
       return { url: preset.thirdPartyUrl, changed: true }
diff --git a/srv/adapter/openai.ts b/srv/adapter/openai.ts
index 9e13115ff..05a734df5 100644
--- a/srv/adapter/openai.ts
+++ b/srv/adapter/openai.ts
@@ -147,7 +147,8 @@ export const handleOAI: ModelAdapter = async function* (opts) {
   const isChatFormat =
     gen.thirdPartyFormat === 'openai-chat' ||
     gen.thirdPartyFormat == 'openai-chatv2' ||
-    gen.thirdPartyFormat === 'lm-studio'
+    gen.thirdPartyFormat === 'lm-studio' ||
+    gen.thirdPartyFormat === 'orcarouter'
   const useChat = (isThirdParty && isChatFormat) || gen.service === 'openai'
 
   if (useChat) {
diff --git a/web/pages/Settings/Provider/index.tsx b/web/pages/Settings/Provider/index.tsx
index 8fde0f14f..31b50b981 100644
--- a/web/pages/Settings/Provider/index.tsx
+++ b/web/pages/Settings/Provider/index.tsx
@@ -296,6 +296,7 @@ const EditConnectionDetails: Field<{ show: boolean; close: () => void }> = (prop
       'featherless',
       'arli',
       'gemini',
+      'orcarouter',
     ]
 
     const options = formats.map((id) => ({ label: FORMAT_LABEL[id], value: id as string }))