feat(execution): base execution charge of 0.001/execution (#817)

Author: icecrasher321

apps/sim/app/workspace/[workspaceId]/logs/components/sidebar/sidebar.tsx

@@ -6,6 +6,7 @@ import { Button } from '@/components/ui/button'
 import { CopyButton } from '@/components/ui/copy-button'
 import { ScrollArea } from '@/components/ui/scroll-area'
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip'
+import { BASE_EXECUTION_CHARGE } from '@/lib/billing/constants'
 import { redactApiKeys } from '@/lib/utils'
 import { FrozenCanvasModal } from '@/app/workspace/[workspaceId]/logs/components/frozen-canvas/frozen-canvas-modal'
 import LogMarkdownRenderer from '@/app/workspace/[workspaceId]/logs/components/sidebar/components/markdown-renderer'
@@ -254,14 +255,10 @@ export function Sidebar({
   }, [log])
 
   // Helper to determine if we have cost information to display
+  // All workflow executions now have cost info (base charge + any model costs)
   const hasCostInfo = useMemo(() => {
-    return !!(
-      log?.metadata?.cost &&
-      ((log.metadata.cost.input && log.metadata.cost.input > 0) ||
-        (log.metadata.cost.output && log.metadata.cost.output > 0) ||
-        (log.metadata.cost.total && log.metadata.cost.total > 0))
-    )
-  }, [log])
+    return isWorkflowExecutionLog && log?.metadata?.cost
+  }, [log, isWorkflowExecutionLog])
 
   const isWorkflowWithCost = useMemo(() => {
     return isWorkflowExecutionLog && hasCostInfo
@@ -492,49 +489,6 @@ export function Sidebar({
                   </div>
                 )}
 
-                {/* Enhanced Cost - only show for enhanced logs with actual cost data */}
-                {log.metadata?.enhanced && hasCostInfo && (
-                  <div>
-                    <h3 className='mb-1 font-medium text-muted-foreground text-xs'>
-                      Cost Breakdown
-                    </h3>
-                    <div className='space-y-1 text-sm'>
-                      {(log.metadata?.cost?.total ?? 0) > 0 && (
-                        <div className='flex justify-between'>
-                          <span>Total Cost:</span>
-                          <span className='font-medium'>
-                            ${log.metadata?.cost?.total?.toFixed(4)}
-                          </span>
-                        </div>
-                      )}
-                      {(log.metadata?.cost?.input ?? 0) > 0 && (
-                        <div className='flex justify-between'>
-                          <span>Input Cost:</span>
-                          <span className='text-muted-foreground'>
-                            ${log.metadata?.cost?.input?.toFixed(4)}
-                          </span>
-                        </div>
-                      )}
-                      {(log.metadata?.cost?.output ?? 0) > 0 && (
-                        <div className='flex justify-between'>
-                          <span>Output Cost:</span>
-                          <span className='text-muted-foreground'>
-                            ${log.metadata?.cost?.output?.toFixed(4)}
-                          </span>
-                        </div>
-                      )}
-                      {(log.metadata?.cost?.tokens?.total ?? 0) > 0 && (
-                        <div className='flex justify-between'>
-                          <span>Total Tokens:</span>
-                          <span className='text-muted-foreground'>
-                            {log.metadata?.cost?.tokens?.total?.toLocaleString()}
-                          </span>
-                        </div>
-                      )}
-                    </div>
-                  </div>
-                )}
-
                 {/* Frozen Canvas Button - only show for workflow execution logs with execution ID */}
                 {isWorkflowExecutionLog && log.executionId && (
                   <div>
@@ -588,17 +542,23 @@ export function Sidebar({
                 {/* Cost Information (moved to bottom) */}
                 {hasCostInfo && (
                   <div>
-                    <h3 className='mb-1 font-medium text-muted-foreground text-xs'>Models</h3>
+                    <h3 className='mb-1 font-medium text-muted-foreground text-xs'>
+                      Cost Breakdown
+                    </h3>
                     <div className='overflow-hidden rounded-md border'>
                       <div className='space-y-2 p-3'>
                         <div className='flex items-center justify-between'>
-                          <span className='text-muted-foreground text-sm'>Input:</span>
+                          <span className='text-muted-foreground text-sm'>Base Execution:</span>
+                          <span className='text-sm'>{formatCost(BASE_EXECUTION_CHARGE)}</span>
+                        </div>
+                        <div className='flex items-center justify-between'>
+                          <span className='text-muted-foreground text-sm'>Model Input:</span>
                           <span className='text-sm'>
                             {formatCost(log.metadata?.cost?.input || 0)}
                           </span>
                         </div>
                         <div className='flex items-center justify-between'>
-                          <span className='text-muted-foreground text-sm'>Output:</span>
+                          <span className='text-muted-foreground text-sm'>Model Output:</span>
                           <span className='text-sm'>
                             {formatCost(log.metadata?.cost?.output || 0)}
                           </span>
@@ -677,8 +637,8 @@ export function Sidebar({
                       {isWorkflowWithCost && (
                         <div className='border-t bg-muted p-3 text-muted-foreground text-xs'>
                           <p>
-                            This is the total cost for all LLM-based blocks in this workflow
-                            execution.
+                            Total cost includes a base execution charge of{' '}
+                            {formatCost(BASE_EXECUTION_CHARGE)} plus any model usage costs.
                           </p>
                         </div>
                       )}

apps/sim/lib/billing/constants.ts

@@ -0,0 +1,9 @@
+/**
+ * Billing and cost constants shared between client and server code
+ */
+
+/**
+ * Base charge applied to every workflow execution
+ * This charge is applied regardless of whether the workflow uses AI models
+ */
+export const BASE_EXECUTION_CHARGE = 0.001

apps/sim/lib/logs/execution/logger.ts

@@ -119,6 +119,8 @@ export class ExecutionLogger implements IExecutionLoggerService {
       totalTokens: number
       totalPromptTokens: number
       totalCompletionTokens: number
+      baseExecutionCharge: number
+      modelCost: number
       models: Record<
         string,
         {
@@ -263,6 +265,8 @@ export class ExecutionLogger implements IExecutionLoggerService {
       totalTokens: number
       totalPromptTokens: number
       totalCompletionTokens: number
+      baseExecutionCharge: number
+      modelCost: number
     },
     trigger: ExecutionTrigger['type']
   ): Promise<void> {
@@ -286,7 +290,8 @@ export class ExecutionLogger implements IExecutionLoggerService {
 
       const userId = workflowRecord.userId
       const costMultiplier = getCostMultiplier()
-      const costToStore = costSummary.totalCost * costMultiplier
+      // Apply cost multiplier only to model costs, not base execution charge
+      const costToStore = costSummary.baseExecutionCharge + costSummary.modelCost * costMultiplier
 
       // Check if user stats record exists
       const userStatsRecords = await db.select().from(userStats).where(eq(userStats.userId, userId))

apps/sim/lib/logs/execution/logging-factory.ts

@@ -1,3 +1,4 @@
+import { BASE_EXECUTION_CHARGE } from '@/lib/billing/constants'
 import type { ExecutionEnvironment, ExecutionTrigger, WorkflowState } from '@/lib/logs/types'
 import { loadWorkflowFromNormalizedTables } from '@/lib/workflows/db-helpers'
 
@@ -53,6 +54,8 @@ export function calculateCostSummary(traceSpans: any[]): {
   totalTokens: number
   totalPromptTokens: number
   totalCompletionTokens: number
+  baseExecutionCharge: number
+  modelCost: number
   models: Record<
     string,
     {
@@ -65,12 +68,14 @@ export function calculateCostSummary(traceSpans: any[]): {
 } {
   if (!traceSpans || traceSpans.length === 0) {
     return {
-      totalCost: 0,
+      totalCost: BASE_EXECUTION_CHARGE,
       totalInputCost: 0,
       totalOutputCost: 0,
       totalTokens: 0,
       totalPromptTokens: 0,
       totalCompletionTokens: 0,
+      baseExecutionCharge: BASE_EXECUTION_CHARGE,
+      modelCost: 0,
       models: {},
     }
   }
@@ -139,13 +144,18 @@ export function calculateCostSummary(traceSpans: any[]): {
     }
   }
 
+  const modelCost = totalCost
+  totalCost += BASE_EXECUTION_CHARGE
+
   return {
     totalCost,
     totalInputCost,
     totalOutputCost,
     totalTokens,
     totalPromptTokens,
     totalCompletionTokens,
+    baseExecutionCharge: BASE_EXECUTION_CHARGE,
+    modelCost,
     models,
   }
 }

apps/sim/lib/logs/execution/logging-session.ts

@@ -1,3 +1,4 @@
+import { BASE_EXECUTION_CHARGE } from '@/lib/billing/constants'
 import { createLogger } from '@/lib/logs/console/logger'
 import { executionLogger } from '@/lib/logs/execution/logger'
 import {
@@ -117,12 +118,14 @@ export class LoggingSession {
   async completeWithError(error?: any): Promise<void> {
     try {
       const costSummary = {
-        totalCost: 0,
+        totalCost: BASE_EXECUTION_CHARGE,
         totalInputCost: 0,
         totalOutputCost: 0,
         totalTokens: 0,
         totalPromptTokens: 0,
         totalCompletionTokens: 0,
+        baseExecutionCharge: BASE_EXECUTION_CHARGE,
+        modelCost: 0,
         models: {},
       }