diff --git a/server/utils/comfy.ts b/server/utils/comfy.ts
index 38f371b..d95c2bf 100644
--- a/server/utils/comfy.ts
+++ b/server/utils/comfy.ts
@@ -1,4 +1,5 @@
 import { LTX_NEGATIVE } from '~/utils/videoModels'
+import { createHash } from 'node:crypto'
 import { comfyJobPrefix } from '~/utils/outputNames'
 
 let comfyHostOverride = ''
@@ -124,7 +125,7 @@ export async function assertImageScaleToTotalPixelsNode() {
 export async function uploadImage(file: { filename: string; data: Buffer; type?: string }, jobId?: string) {
   const body = new FormData()
   const blob = new Blob([new Uint8Array(file.data)], { type: file.type || 'application/octet-stream' })
-  const filename = comfyInputFilename(file.filename, jobId)
+  const filename = comfyInputFilename(file.filename, file.data, jobId)
   body.append('image', blob, filename)
   body.append('overwrite', 'true')
   body.append('type', 'input')
@@ -140,12 +141,16 @@ export async function uploadImage(file: { filename: string; data: Buffer; type?:
   }
 }
 
-export function comfyInputFilename(original: string, jobId?: string) {
+/** Content-hash names so the same still overwrites itself (overwrite:true). Job id alone created hundreds of copies. */
+export function comfyInputFilename(original: string, data?: Buffer, jobId?: string) {
   const raw = String(original || 'still.png')
   const dot = raw.lastIndexOf('.')
   const ext = (dot >= 0 ? raw.slice(dot) : '.png').replace(/[^.a-zA-Z0-9]/g, '') || '.png'
   const base = (dot >= 0 ? raw.slice(0, dot) : raw).replace(/[^a-zA-Z0-9._-]+/g, '_').slice(0, 48) || 'still'
-  return `${comfyJobPrefix(jobId)}_${base}${ext}`
+  const hash = data?.length
+    ? createHash('sha1').update(data).digest('hex').slice(0, 12)
+    : comfyJobPrefix(jobId)
+  return `aigen_${hash}_${base}${ext}`
 }
 
 function comfyQueueMessage(payload: unknown, status: number) {
@@ -625,7 +630,9 @@ async function purgeOnDesktop(opts: {
         video: opts.video || null,
         audio: opts.audio || null,
         output: opts.output || (opts.video && /\.(png|jpe?g|webp|gif)$/i.test(opts.video.filename) ? opts.video : null),
-        sweep: false
+        // Sweep leftover studio uploads — exact delete alone left hundreds of copies when a job failed mid-way.
+        sweep: true,
+        sweepMaxAgeMs: 2 * 60 * 1000
       }),
       signal: AbortSignal.timeout(12000)
     })
diff --git a/server/utils/imageComfy.ts b/server/utils/imageComfy.ts
index a672a52..a194aef 100644
--- a/server/utils/imageComfy.ts
+++ b/server/utils/imageComfy.ts
@@ -1,3 +1,4 @@
+import { createHash } from 'node:crypto'
 import { AsyncLocalStorage } from 'node:async_hooks'
 import { getComfyHost, viaAgentFrontDoor } from '~/server/utils/comfy'
 import { comfyJobPrefix } from '~/utils/outputNames'
@@ -94,18 +95,21 @@ export function imageComfyWsUrl(clientId: string) {
   return `${getImageComfyHost().replace(/^http/, 'ws')}/ws?clientId=${encodeURIComponent(clientId)}`
 }
 
-function imageInputFilename(original: string, jobId?: string) {
+function imageInputFilename(original: string, data?: Buffer, jobId?: string) {
   const raw = String(original || 'still.png')
   const dot = raw.lastIndexOf('.')
   const ext = (dot >= 0 ? raw.slice(dot) : '.png').replace(/[^.a-zA-Z0-9]/g, '') || '.png'
   const base = (dot >= 0 ? raw.slice(0, dot) : raw).replace(/[^a-zA-Z0-9._-]+/g, '_').slice(0, 48) || 'still'
-  return `${comfyJobPrefix(jobId)}_${base}${ext}`
+  const hash = data?.length
+    ? createHash('sha1').update(data).digest('hex').slice(0, 12)
+    : comfyJobPrefix(jobId)
+  return `aigen_${hash}_${base}${ext}`
 }
 
 export async function uploadImageEdit(file: { filename: string; data: Buffer; type?: string }, jobId?: string) {
   const body = new FormData()
   const blob = new Blob([new Uint8Array(file.data)], { type: file.type || 'application/octet-stream' })
-  const filename = imageInputFilename(file.filename, jobId)
+  const filename = imageInputFilename(file.filename, file.data, jobId)
   body.append('image', blob, filename)
   body.append('overwrite', 'true')
   body.append('type', 'input')
@@ -393,7 +397,8 @@ async function purgeImageOnDesktop(opts: {
         imageNames,
         imageSubfolder: opts.inputSubfolder || '',
         output: opts.output || null,
-        sweep: false
+        sweep: true,
+        sweepMaxAgeMs: 2 * 60 * 1000
       }),
       signal: AbortSignal.timeout(8000)
     })