diff --git a/src/services/api/azureOpenAI.ts b/src/services/api/azureOpenAI.ts
index ad040f50..5b3e2071 100644
--- a/src/services/api/azureOpenAI.ts
+++ b/src/services/api/azureOpenAI.ts
@@ -105,7 +105,13 @@ export function resolveAzureOpenAIDeployment(model: string): string {
 
   const codex = resolveCodexDeployment(trimmed)
   if (codex) {
-    if (codex === trimmed || codex.toLowerCase().includes('codex')) {
+    const codexLower = codex.toLowerCase()
+    if (
+      codex === trimmed ||
+      codexLower === 'gpt-5.2-codex' ||
+      codexLower === 'gpt-5.3-codex' ||
+      codexLower === 'gpt-5.4-codex'
+    ) {
       throw new Error(
         `Missing Azure OpenAI deployment mapping for ${trimmed}. Set AZURE_OPENAI_CODEX_DEPLOYMENT or settings.modelOverrides["${trimmed}"] to your deployment name.`,
       )
diff --git a/src/services/api/claude.ts b/src/services/api/claude.ts
index 7e2e695c..6795a6d2 100644
--- a/src/services/api/claude.ts
+++ b/src/services/api/claude.ts
@@ -1028,7 +1028,7 @@ async function* queryModel(
 > {
   if (getAPIProvider() === 'azureOpenAI') {
     try {
-      const systemText = systemPrompt.join('\\n')
+      const systemText = systemPrompt.join('\n')
       const maxOutputTokens =
         options.maxOutputTokensOverride ??
         getModelMaxOutputTokens(options.model).default