diff --git a/electron/main.js b/electron/main.js
index c82ceac149..56a00bd3ff 100644
--- a/electron/main.js
+++ b/electron/main.js
@@ -280,9 +280,14 @@ function installUpdate() {
 // ── Content Security Policy (#15) ──────────────────────────
 function setupContentSecurityPolicy() {
   session.defaultSession.webRequest.onHeadersReceived((details, callback) => {
-    const scriptSrc = isDev
+    // Determine if the request is for the Next.js development server
+    const isDevUrl = details.url.includes("localhost:20128") || details.url.includes("127.0.0.1:20128");
+
+    // React/Next.js requires unsafe-eval for source maps and Hot Module Replacement (HMR) during development.
+    const scriptSrc = isDevUrl
       ? "script-src 'self' 'unsafe-inline' 'unsafe-eval' blob:"
       : "script-src 'self' 'unsafe-inline' blob:";
+      
     const csp = [
       "default-src 'self'",
       "base-uri 'self'",
@@ -291,6 +296,7 @@ function setupContentSecurityPolicy() {
       "frame-src 'none'",
       "child-src 'none'",
       "form-action 'self'",
+      `connect-src 'self' http://localhost:* ws://localhost:* wss://localhost:* https://*.omniroute.online https://*.omniroute.dev`,
       scriptSrc,
       "script-src-attr 'none'",
       "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
diff --git a/open-sse/config/providerRegistry.ts b/open-sse/config/providerRegistry.ts
index c8a126c186..30dc62f580 100644
--- a/open-sse/config/providerRegistry.ts
+++ b/open-sse/config/providerRegistry.ts
@@ -704,8 +704,8 @@ export const REGISTRY: Record<string, RegistryEntry> = {
       const action = stream ? "streamGenerateContent?alt=sse" : "generateContent";
       return `${base}:${action}`;
     },
-    authType: "oauth",
-    authHeader: "bearer",
+    authType: "apikey",
+    authHeader: "x-goog-api-key",
     defaultContextLength: 1048576,
     oauth: {
       clientIdEnv: "GEMINI_CLI_OAUTH_CLIENT_ID",
@@ -714,6 +714,8 @@ export const REGISTRY: Record<string, RegistryEntry> = {
       clientSecretDefault: resolvePublicCred("gemini_alt"),
     },
     models: [
+      { id: "gemini-1.5-pro", name: "Gemini 1.5 Pro" },
+      { id: "gemini-1.5-flash", name: "Gemini 1.5 Flash" },
       { id: "gemini-3.1-pro-preview", name: "Gemini 3.1 Pro Preview" },
       { id: "gemini-3.1-pro-preview-customtools", name: "Gemini 3.1 Pro Preview Custom Tools" },
       { id: "gemini-3-flash-preview", name: "Gemini 3 Flash Preview" },
diff --git a/open-sse/executors/gemini-cli.ts b/open-sse/executors/gemini-cli.ts
index 1b77fc4b5b..ea82347db0 100644
--- a/open-sse/executors/gemini-cli.ts
+++ b/open-sse/executors/gemini-cli.ts
@@ -133,11 +133,24 @@ export class GeminiCLIExecutor extends BaseExecutor {
     model?: string
   ) {
     void clientHeaders;
+    
+    // Fallback to internal tracker if model not explicitly passed (matches older interface calls)
+    const activeModel = model || this._currentModel || "unknown";
+    
     const raw = getGeminiCliHeaders(
-      normalizeGeminiModel(model || "unknown"),
+      normalizeGeminiModel(activeModel),
       credentials.accessToken,
       stream ? "*/*" : "application/json"
     );
+
+    if (credentials.apiKey) {
+      raw["x-goog-api-key"] = credentials.apiKey;
+      // getGeminiCliHeaders adds Authorization: Bearer undefined if accessToken is empty, so we clean it up
+      if (!credentials.accessToken) {
+        delete raw["Authorization"];
+      }
+    }
+
     return scrubProxyAndFingerprintHeaders(raw);
   }
 
diff --git a/src/lib/modelAliasSeed.ts b/src/lib/modelAliasSeed.ts
index c3848d1ed8..f4c77b1fae 100644
--- a/src/lib/modelAliasSeed.ts
+++ b/src/lib/modelAliasSeed.ts
@@ -1,12 +1,15 @@
 import { getModelAliases, setModelAlias } from "@/lib/db/models";
 
 export const DEFAULT_MODEL_ALIAS_SEED = Object.freeze({
-  "gemini-3-pro-high": "antigravity/gemini-3-pro-preview",
-  "gemini-3-pro-low": "antigravity/gemini-3.1-pro-low",
-  "gemini-3-pro-preview": "antigravity/gemini-3-pro-preview",
-  "gemini-3.1-pro-preview": "antigravity/gemini-3-pro-preview",
-  "gemini-3.1-pro-preview-customtools": "antigravity/gemini-3-pro-preview",
-  "gemini-3-flash-preview": "antigravity/gemini-3-flash-preview",
+  "gemini-1.5-pro": "gemini-cli/gemini-1.5-pro",
+  "gemini-1.5-flash": "gemini-cli/gemini-1.5-flash",
+  "gemini-3-pro-high": "gemini-cli/gemini-3.1-pro-preview",
+  "gemini-3-pro-low": "gemini-cli/gemini-3.1-flash-lite-preview",
+  "gemini-3-pro-preview": "gemini-cli/gemini-3.1-pro-preview",
+  "gemini-3.1-pro-preview": "gemini-cli/gemini-3.1-pro-preview",
+  "gemini-3.1-pro-preview-customtools": "gemini-cli/gemini-3.1-pro-preview-customtools",
+  "gemini-3-flash-preview": "gemini-cli/gemini-3-flash-preview",
+  "gemini-3.1-flash-lite-preview": "gemini-cli/gemini-3.1-flash-lite-preview",
 });
 
 type SeedLogger = {
diff --git a/src/lib/providers/validation.ts b/src/lib/providers/validation.ts
index 876eb3933d..9ecb7ea949 100644
--- a/src/lib/providers/validation.ts
+++ b/src/lib/providers/validation.ts
@@ -732,14 +732,31 @@ async function validateGeminiLikeProvider({
   isLocal = false,
 }: any) {
   try {
+    if (!baseUrl) {
+      return { valid: false, error: "Missing base URL" };
+    }
+
     const requestUrl =
       typeof providerSpecificData?.modelsUrl === "string" &&
       providerSpecificData.modelsUrl.trim() !== ""
         ? providerSpecificData.modelsUrl.trim()
         : `${baseUrl}/models`;
+        
     const urlWithKey =
       authType === "query" ? `${requestUrl}?key=${encodeURIComponent(apiKey)}` : requestUrl;
-    const headers = authType === "header" ? { "x-goog-api-key": apiKey } : {};
+      
+    // Use the correct auth header based on provider config:
+    // - gemini / gemini-cli (API key): x-goog-api-key
+    // - gemini-cli (OAuth): Bearer token
+    const headers: Record<string, string> = {};
+    
+    if (authType === "header" || authType === "apikey") {
+      headers["x-goog-api-key"] = apiKey;
+    } else if (authType === "oauth" || apiKey.startsWith("ya29.")) {
+      headers["Authorization"] = `Bearer ${apiKey}`;
+    }
+    
+    applyCustomUserAgent(headers, providerSpecificData);
 
     const response = await validationRead(
       urlWithKey,
@@ -749,10 +766,6 @@ async function validateGeminiLikeProvider({
       isLocal
     );
 
-    if (!baseUrl) {
-      return { valid: false, error: "Missing base URL" };
-    }
-
     if (response.ok) {
       return { valid: true, error: null };
     }
diff --git a/tests/unit/error-classification.test.ts b/tests/unit/error-classification.test.ts
index 0f6be74c08..cad77e5793 100644
--- a/tests/unit/error-classification.test.ts
+++ b/tests/unit/error-classification.test.ts
@@ -18,11 +18,11 @@ test("getProviderCategory: OAuth providers return 'oauth'", () => {
   assert.equal(getProviderCategory("antigravity"), "oauth");
   assert.equal(getProviderCategory("cursor"), "oauth");
   assert.equal(getProviderCategory("kiro"), "oauth");
-  assert.equal(getProviderCategory("gemini-cli"), "oauth");
   assert.equal(getProviderCategory("cline"), "oauth");
 });
 
 test("getProviderCategory: API key providers return 'apikey'", () => {
+  assert.equal(getProviderCategory("gemini-cli"), "apikey");
   assert.equal(getProviderCategory("groq"), "apikey");
   assert.equal(getProviderCategory("fireworks"), "apikey");
   assert.equal(getProviderCategory("cerebras"), "apikey");
diff --git a/tests/unit/executor-gemini-cli.test.ts b/tests/unit/executor-gemini-cli.test.ts
index 34ca694920..3dbd1f7f09 100644
--- a/tests/unit/executor-gemini-cli.test.ts
+++ b/tests/unit/executor-gemini-cli.test.ts
@@ -40,6 +40,17 @@ test("GeminiCLIExecutor.buildUrl and buildHeaders match the native Gemini CLI fi
   );
   assert.equal(headers.Authorization, "Bearer gcli-token");
   assert.equal(headers.Accept, "*/*");
+
+  const apiKeyHeaders = executor.buildHeaders(
+    { apiKey: "gcli-api-key" }, 
+    false,
+    undefined,
+    "models/gemini-2.5-flash"
+  );
+  assert.equal(apiKeyHeaders["x-goog-api-key"], "gcli-api-key");
+  assert.equal(apiKeyHeaders.Authorization, undefined);
+  assert.equal(apiKeyHeaders.Accept, "application/json");
+
   assert.match(
     headers["User-Agent"],
     new RegExp(
@@ -108,6 +119,14 @@ test("GeminiCLIExecutor.refreshProject caches loadCodeAssist lookups and transfo
     assert.equal(second, "fresh-project-id");
     assert.equal(calls, 1);
     assert.equal(transformed.project, "fresh-project-id");
+
+    const apiKeyTransformed = await executor.transformRequest(
+      "gemini-2.5-flash",
+      { request: { contents: [] } },
+      true,
+      { apiKey: "gcli-api-key" }
+    );
+    assert.equal(apiKeyTransformed.project, undefined);
   } finally {
     globalThis.fetch = originalFetch;
   }
diff --git a/tests/unit/provider-validation-branches.test.ts b/tests/unit/provider-validation-branches.test.ts
index 83737d9711..a54b8aaa5c 100644
--- a/tests/unit/provider-validation-branches.test.ts
+++ b/tests/unit/provider-validation-branches.test.ts
@@ -408,7 +408,7 @@ test("gemini validation rejects invalid keys via UNAUTHENTICATED status", async
   assert.equal(result.error, "Invalid API key");
 });
 
-test("gemini-cli validation uses Bearer auth (OAuth)", async () => {
+test("gemini-cli validation uses x-goog-api-key by default", async () => {
   const calls = [];
   globalThis.fetch = async (url, init) => {
     calls.push({ url: String(url), headers: init?.headers });
@@ -422,12 +422,34 @@ test("gemini-cli validation uses Bearer auth (OAuth)", async () => {
 
   const result = await validateProviderApiKey({
     provider: "gemini-cli",
-    apiKey: "oauth-access-token",
+    apiKey: "gcli-api-key",
   });
 
   assert.equal(result.valid, true);
   assert.equal(result.error, null);
   assert.equal(calls.length, 1);
-  assert.equal(calls[0].headers["Authorization"], "Bearer oauth-access-token");
-  assert.equal(calls[0].headers["x-goog-api-key"], undefined);
+  assert.equal(calls[0].headers["x-goog-api-key"], "gcli-api-key");
+  assert.equal(calls[0].headers["Authorization"], undefined);
+});
+
+test("gemini-cli validation supports Bearer auth if token starts with ya29.", async () => {
+  const calls = [];
+  globalThis.fetch = async (url, init) => {
+    calls.push({ url: String(url), headers: init?.headers });
+    return new Response(
+      JSON.stringify({
+        models: [{ name: "models/gemini-2.5-flash" }],
+      }),
+      { status: 200 }
+    );
+  };
+
+  const result = await validateProviderApiKey({
+    provider: "gemini-cli",
+    apiKey: "ya29.oauth-access-token",
+  });
+
+  assert.equal(result.valid, true);
+  assert.equal(calls.length, 1);
+  assert.equal(calls[0].headers["Authorization"], "Bearer ya29.oauth-access-token");
 });