diff --git a/lib/profileQueue.js b/lib/profileQueue.js
index 6ed7909..7065d8e 100644
--- a/lib/profileQueue.js
+++ b/lib/profileQueue.js
@@ -225,7 +225,7 @@ async function generateProfile(target, sources, io) {
             }
 
             const directResponse = await anthropicClient.messages.create({
-                model: "claude-3-opus-20240229",
+                model: "claude-sonnet-4-20250514",
                 max_tokens: 4000,
                 temperature: 0.2,
                 system: "You are generating a professional profile for an individual based on the source data provided. Create a structured profile with name, email, professional roles, education, skills, and connections. Add [Source: URL] after each claim. Provide ONLY the final profile, no explanation of your process or thinking.",
@@ -291,7 +291,7 @@ If the sources don't contain enough information for a complete profile, create a
 
             // Send request to Claude API
             const response = await anthropicClient.messages.create({
-                model: "claude-3-opus-20240229",
+                model: "claude-sonnet-4-20250514",
                 system: systemPrompt,
                 messages: messages,
                 tools: tools,
@@ -384,7 +384,7 @@ If the sources don't contain enough information for a complete profile, create a
         // If we've reached max iterations without getting a profile, try one last direct approach
         try {
             const finalAttempt = await anthropicClient.messages.create({
-                model: "claude-3-opus-20240229",
+                model: "claude-sonnet-4-20250514",
                 messages: [
                     {
                         role: "user",
@@ -427,4 +427,5 @@ module.exports = {
     queueProfileGeneration,
     queueProfilesForTargets,
     clearQueue
-};
\ No newline at end of file
+
+};