diff --git a/apps/sim/app/api/tools/stagehand/agent/route.ts b/apps/sim/app/api/tools/stagehand/agent/route.ts
index e9a6c7dbca..60341a4d17 100644
--- a/apps/sim/app/api/tools/stagehand/agent/route.ts
+++ b/apps/sim/app/api/tools/stagehand/agent/route.ts
@@ -496,7 +496,7 @@ export async function POST(request: NextRequest) {
         verbose: 1,
         logger: (msg) => logger.info(typeof msg === 'string' ? msg : JSON.stringify(msg)),
         model: {
-          modelName: 'claude-sonnet-4-20250514',
+          modelName: 'anthropic/claude-3-7-sonnet-latest',
           apiKey: apiKey,
         },
       })
@@ -704,7 +704,14 @@ The system will substitute actual values when these placeholders are used, keepi
         `.trim()
 
       const agent = stagehand.agent({
-        model: 'anthropic/claude-sonnet-4-20250514',
+        model: {
+          modelName: 'anthropic/claude-3-7-sonnet-latest',
+          apiKey: apiKey,
+        },
+        executionModel: {
+          modelName: 'anthropic/claude-3-7-sonnet-latest',
+          apiKey: apiKey,
+        },
         systemPrompt: `${agentInstructions}\n\n${additionalContext}`,
       })
 
@@ -795,6 +802,9 @@ The system will substitute actual values when these placeholders are used, keepi
       })
 
       let structuredOutput = null
+      const hasOutputSchema =
+        outputSchema && typeof outputSchema === 'object' && outputSchema !== null
+
       if (agentResult.message) {
         try {
           let jsonContent = agentResult.message
@@ -807,33 +817,31 @@ The system will substitute actual values when these placeholders are used, keepi
           structuredOutput = JSON.parse(jsonContent)
           logger.info('Successfully parsed structured output from agent response')
         } catch (parseError) {
-          logger.error('Failed to parse JSON from agent message', {
-            error: parseError,
-            message: agentResult.message,
-          })
+          if (hasOutputSchema) {
+            logger.warn('Failed to parse JSON from agent message, attempting fallback extraction', {
+              error: parseError,
+            })
 
-          if (
-            outputSchema &&
-            typeof outputSchema === 'object' &&
-            outputSchema !== null &&
-            stagehand
-          ) {
-            try {
-              logger.info('Attempting to extract structured data using Stagehand extract')
-              const schemaObj = getSchemaObject(outputSchema)
-              const zodSchema = ensureZodObject(logger, schemaObj)
+            if (stagehand) {
+              try {
+                logger.info('Attempting to extract structured data using Stagehand extract')
+                const schemaObj = getSchemaObject(outputSchema)
+                const zodSchema = ensureZodObject(logger, schemaObj)
 
-              structuredOutput = await stagehand.extract(
-                'Extract the requested information from this page according to the schema',
-                zodSchema
-              )
+                structuredOutput = await stagehand.extract(
+                  'Extract the requested information from this page according to the schema',
+                  zodSchema
+                )
 
-              logger.info('Successfully extracted structured data as fallback', {
-                keys: structuredOutput ? Object.keys(structuredOutput) : [],
-              })
-            } catch (extractError) {
-              logger.error('Fallback extraction also failed', { error: extractError })
+                logger.info('Successfully extracted structured data as fallback', {
+                  keys: structuredOutput ? Object.keys(structuredOutput) : [],
+                })
+              } catch (extractError) {
+                logger.error('Fallback extraction also failed', { error: extractError })
+              }
             }
+          } else {
+            logger.info('Agent returned plain text response (no schema provided)')
           }
         }
       }
diff --git a/apps/sim/app/api/tools/stagehand/extract/route.ts b/apps/sim/app/api/tools/stagehand/extract/route.ts
index 4ef4fd66f8..b7a4148922 100644
--- a/apps/sim/app/api/tools/stagehand/extract/route.ts
+++ b/apps/sim/app/api/tools/stagehand/extract/route.ts
@@ -86,7 +86,7 @@ export async function POST(request: NextRequest) {
         verbose: 1,
         logger: (msg) => logger.info(typeof msg === 'string' ? msg : JSON.stringify(msg)),
         model: {
-          modelName: 'gpt-4o',
+          modelName: 'openai/gpt-4o',
           apiKey: apiKey,
         },
       })
diff --git a/apps/sim/blocks/blocks/browser_use.ts b/apps/sim/blocks/blocks/browser_use.ts
index 79045cdb8f..4698af2cb9 100644
--- a/apps/sim/blocks/blocks/browser_use.ts
+++ b/apps/sim/blocks/blocks/browser_use.ts
@@ -32,11 +32,23 @@ export const BrowserUseBlock: BlockConfig<BrowserUseResponse> = {
       title: 'Model',
       type: 'dropdown',
       options: [
-        { label: 'gpt-4o', id: 'gpt-4o' },
-        { label: 'gemini-2.0-flash', id: 'gemini-2.0-flash' },
-        { label: 'gemini-2.0-flash-lite', id: 'gemini-2.0-flash-lite' },
-        { label: 'claude-3-7-sonnet-20250219', id: 'claude-3-7-sonnet-20250219' },
-        { label: 'llama-4-maverick-17b-128e-instruct', id: 'llama-4-maverick-17b-128e-instruct' },
+        { label: 'Browser Use LLM', id: 'browser-use-llm' },
+        { label: 'GPT-4o', id: 'gpt-4o' },
+        { label: 'GPT-4o Mini', id: 'gpt-4o-mini' },
+        { label: 'GPT-4.1', id: 'gpt-4.1' },
+        { label: 'GPT-4.1 Mini', id: 'gpt-4.1-mini' },
+        { label: 'O3', id: 'o3' },
+        { label: 'O4 Mini', id: 'o4-mini' },
+        { label: 'Gemini 2.5 Flash', id: 'gemini-2.5-flash' },
+        { label: 'Gemini 2.5 Pro', id: 'gemini-2.5-pro' },
+        { label: 'Gemini 3 Pro Preview', id: 'gemini-3-pro-preview' },
+        { label: 'Gemini Flash Latest', id: 'gemini-flash-latest' },
+        { label: 'Gemini Flash Lite Latest', id: 'gemini-flash-lite-latest' },
+        { label: 'Claude 3.7 Sonnet', id: 'claude-3-7-sonnet-20250219' },
+        { label: 'Claude Sonnet 4', id: 'claude-sonnet-4-20250514' },
+        { label: 'Claude Sonnet 4.5', id: 'claude-sonnet-4-5-20250929' },
+        { label: 'Claude Opus 4.5', id: 'claude-opus-4-5-20251101' },
+        { label: 'Llama 4 Maverick', id: 'llama-4-maverick-17b-128e-instruct' },
       ],
     },
     {
diff --git a/apps/sim/next.config.ts b/apps/sim/next.config.ts
index 20e8063871..e2f3ebaba0 100644
--- a/apps/sim/next.config.ts
+++ b/apps/sim/next.config.ts
@@ -79,6 +79,7 @@ const nextConfig: NextConfig = {
     'pino',
     'pino-pretty',
     'thread-stream',
+    '@browserbasehq/stagehand',
   ],
   experimental: {
     optimizeCss: true,
diff --git a/apps/sim/socket-server/handlers/subblocks.ts b/apps/sim/socket-server/handlers/subblocks.ts
index ea4e621cde..c7d42f67e6 100644
--- a/apps/sim/socket-server/handlers/subblocks.ts
+++ b/apps/sim/socket-server/handlers/subblocks.ts
@@ -195,8 +195,6 @@ async function flushSubblockUpdate(
           sock.emit('operation-confirmed', { operationId: opId, serverTimestamp: Date.now() })
         }
       })
-
-      logger.debug(`Flushed subblock update ${workflowId}: ${blockId}.${subblockId}`)
     } else {
       pending.opToSocket.forEach((socketId, opId) => {
         const sock = (roomManager as any).io?.sockets?.sockets?.get(socketId)