diff --git a/open-sse/config/providerModels.js b/open-sse/config/providerModels.js
index 979ce4e..a2a49ca 100644
--- a/open-sse/config/providerModels.js
+++ b/open-sse/config/providerModels.js
@@ -417,6 +417,8 @@ export const PROVIDER_MODELS = {
   ],
   deepseek: [
     { id: "deepseek-v4-pro", name: "DeepSeek V4 Pro" },
+    { id: "deepseek-v4-pro-max", name: "DeepSeek V4 Pro Max", upstreamModelId: "deepseek-v4-pro" },
+    { id: "deepseek-v4-pro-none", name: "DeepSeek V4 Pro No Thinking", upstreamModelId: "deepseek-v4-pro" },
     { id: "deepseek-v4-flash", name: "DeepSeek V4 Flash" },
     { id: "deepseek-chat", name: "DeepSeek V3.2 Chat" },
     { id: "deepseek-reasoner", name: "DeepSeek V3.2 Reasoner" },
diff --git a/open-sse/utils/reasoningContentInjector.js b/open-sse/utils/reasoningContentInjector.js
index 0f28496..0ace3ea 100644
--- a/open-sse/utils/reasoningContentInjector.js
+++ b/open-sse/utils/reasoningContentInjector.js
@@ -15,6 +15,18 @@ const MODEL_RULES = [
   { match: m => m?.startsWith?.("deepseek-"), scope: "all" }
 ];
 
+const DEEPSEEK_V4_PRO = "deepseek-v4-pro";
+const DEEPSEEK_V4_PRO_ALIASES = {
+  [`${DEEPSEEK_V4_PRO}-max`]: {
+    thinkingType: "enabled",
+    reasoningEffort: "max"
+  },
+  [`${DEEPSEEK_V4_PRO}-none`]: {
+    thinkingType: "disabled",
+    reasoningEffort: null
+  }
+};
+
 function shouldInject(message, scope) {
   if (message?.role !== "assistant") return false;
   const rc = message.reasoning_content;
@@ -31,9 +43,35 @@ function applyRule(body, rule) {
   return { ...body, messages };
 }
 
+function applyDeepSeekV4ProAlias({ provider, model, body }) {
+  const alias = DEEPSEEK_V4_PRO_ALIASES[model];
+  if (provider !== "deepseek" || !alias || !body) return body;
+
+  const nextBody = {
+    ...body,
+    model: DEEPSEEK_V4_PRO,
+    extra_body: {
+      ...(body.extra_body || {}),
+      thinking: {
+        ...(body.extra_body?.thinking || {}),
+        type: alias.thinkingType
+      }
+    }
+  };
+
+  if (alias.reasoningEffort) {
+    nextBody.reasoning_effort = alias.reasoningEffort;
+  } else {
+    delete nextBody.reasoning_effort;
+  }
+
+  return nextBody;
+}
+
 export function injectReasoningContent({ provider, model, body }) {
   const providerRule = PROVIDER_RULES[provider];
   const modelRule = MODEL_RULES.find(r => r.match(model));
   const rule = providerRule || modelRule;
-  return applyRule(body, rule);
+  const nextBody = applyDeepSeekV4ProAlias({ provider, model, body });
+  return applyRule(nextBody, rule);
 }