diff --git a/package.json b/package.json
index c1f94594..c280a80d 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
   "dependencies": {
     "@adobe/css-tools": "4.3.2",
     "@aws-crypto/sha256-js": "^5.2.0",
+    "@breezystack/lamejs": "^1.2.7",
     "@capacitor/android": "^5.6.0",
     "@capacitor/core": "^5.6.0",
     "@capacitor/filesystem": "^5.2.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 8bb3a889..737a7b4c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -14,6 +14,9 @@ importers:
       '@aws-crypto/sha256-js':
         specifier: ^5.2.0
         version: 5.2.0
+      '@breezystack/lamejs':
+        specifier: ^1.2.7
+        version: 1.2.7
       '@capacitor/android':
         specifier: ^5.6.0
         version: 5.6.0(@capacitor/core@5.6.0)
@@ -361,6 +364,9 @@ packages:
     resolution: {integrity: sha512-acGdbYSfp2WheJoJm/EBBBLh/ID8KDc64ISZ9DYtBmC8/Q204PZJLHyzeB5qMzJ5trcOkybd78M4x2KWsUq++A==}
     engines: {node: '>=6.9.0'}
 
+  '@breezystack/lamejs@1.2.7':
+    resolution: {integrity: sha512-6wc7ck65ctA75Hq7FYHTtTvGnYs6msgdxiSUICQ+A01nVOWg6rqouZB8IdyteRlfpYYiFovkf67dIeOgWIUzTA==}
+
   '@capacitor/android@5.6.0':
     resolution: {integrity: sha512-6O7xV6K6c8WvQzKxOe7fnhRyoVpS3TNDXy1FyfhvOvclBvu+1JddSdFvW4e4dSL60s2c00sCzNRgYhm+cn0/dQ==}
     peerDependencies:
@@ -4061,6 +4067,8 @@ snapshots:
       chalk: 2.4.2
       js-tokens: 4.0.0
 
+  '@breezystack/lamejs@1.2.7': {}
+
   '@capacitor/android@5.6.0(@capacitor/core@5.6.0)':
     dependencies:
       '@capacitor/core': 5.6.0
diff --git a/src/App.svelte b/src/App.svelte
index 5f1d529c..b2a760df 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -36,7 +36,7 @@
         await importCharacterProcess({
             name: file.name,
             data: file
-        })
+    })
         checkCharOrder()
     }
 }}>
diff --git a/src/lang/en.ts b/src/lang/en.ts
index ae61f590..aaba8e64 100644
--- a/src/lang/en.ts
+++ b/src/lang/en.ts
@@ -823,4 +823,8 @@ export const languageEnglish = {
     presetChain: "Preset Chain",
     legacyMediaFindings: "Legacy Media Findings",
     staticsDisclaimer: "The statistics are based on the data from after July 2024. the data may not be accurate.",
+    subtitles: "Subtitles",
+    subtitlesWarning1: "You must use model with audio/video input to use this feature.",
+    subtitlesWarning2: "You must use model with streaming feature to use this feature.",
+    reset: "Reset",
 }
\ No newline at end of file
diff --git a/src/lib/Playground/PlaygroundMenu.svelte b/src/lib/Playground/PlaygroundMenu.svelte
index ac7756a3..3d007539 100644
--- a/src/lib/Playground/PlaygroundMenu.svelte
+++ b/src/lib/Playground/PlaygroundMenu.svelte
@@ -14,6 +14,7 @@
     import PlaygroundParser from "./PlaygroundParser.svelte";
     import ToolConvertion from "./ToolConvertion.svelte";
     import { joinMultiuserRoom } from "src/ts/sync/multiuser";
+  import PlaygroundSubtitle from "./PlaygroundSubtitle.svelte";
 
     let easterEggTouch = $state(0)
 
@@ -83,6 +84,11 @@
             }}>
                 <h1 class="text-2xl font-bold text-start">Parser</h1>
             </button>
+            <button class="bg-darkbg rounded-md p-6 flex flex-col transition-shadow hover:ring-1" onclick={() => {
+                PlaygroundStore.set(9)
+            }}>
+                <h1 class="text-2xl font-bold text-start">{language.subtitles}</h1>
+            </button>
             <button class="bg-darkbg rounded-md p-6 flex flex-col transition-shadow hover:ring-1" onclick={() => {
                 PlaygroundStore.set(101)
             }}>
@@ -139,6 +145,9 @@
             {#if $PlaygroundStore === 8}
                 <PlaygroundParser/>
             {/if}  
+            {#if $PlaygroundStore === 9}
+                <PlaygroundSubtitle/>
+            {/if}  
             {#if $PlaygroundStore === 101}
                 <ToolConvertion/>
             {/if}  
diff --git a/src/lib/Playground/PlaygroundSubtitle.svelte b/src/lib/Playground/PlaygroundSubtitle.svelte
new file mode 100644
index 00000000..e9504d3f
--- /dev/null
+++ b/src/lib/Playground/PlaygroundSubtitle.svelte
@@ -0,0 +1,443 @@
+
+<script lang="ts">
+    import { language } from "src/lang";
+    import TextInput from "../UI/GUI/TextInput.svelte";
+    import TextAreaInput from "../UI/GUI/TextAreaInput.svelte";
+    import Button from "../UI/GUI/Button.svelte";
+    import { DBState } from "src/ts/stores.svelte";
+    import { getModelInfo, LLMFlags } from "src/ts/model/modellist";
+    import { requestChatData } from "src/ts/process/request";
+    import { selectFileByDom, selectSingleFile, sleep } from "src/ts/util";
+    import { alertError, alertSelect } from "src/ts/alert";
+    import { risuChatParser } from "src/ts/parser.svelte";
+    import { AppendableBuffer, downloadFile, globalFetch } from "src/ts/globalApi.svelte";
+    import SliderInput from "../UI/GUI/SliderInput.svelte";
+    import SelectInput from "../UI/GUI/SelectInput.svelte";
+    import OptionInput from "../UI/GUI/OptionInput.svelte";
+
+
+
+    let LLMModePrompt ="Transcribe and create a caption and timestamp of it, according to the user's audio or video input. inside a markdown code block. (prefix ```webvtt / postfix ```)\n\nFormat\n```\n[TIME] CONTENT\n```\n\nExample\n```\n[00:00] Hildy!\n[00:01] How are you?\n[00:03] Tell me, is the lord of the universe in?\n[00:07] Somebody must've stolen the crown jewels\n```\n\nStep 2. Generate another subtitle, this time, as a translation to {{slot}}, with same format with Step 1., using step 1 as ref.\n\n The translation must be in natural {{slot}}.\n\n Now, start (Hint: media length is {{slot::time}})"
+    let WhisperModePrompt = "```\n{{slot::data}}\n``` Translate the following WEBVTT to natural {{slot}}, with keeping the timestamp and header, inside a markdown code block. (prefix ``` / postfix ```)"
+
+    let selLang = $state(DBState.db.language)
+    let prompt = $state(LLMModePrompt)
+    let modelInfo = $derived(getModelInfo(DBState.db.aiModel))
+    let outputText = $state('')
+    let fileB64 = $state('')
+    let vttB64 = $state('')
+    let vobj:TranscribeObj[] = $state([])
+    let mode = $state('llm')
+
+
+
+    async function runLLMMode() {
+        outputText = 'Loading...\n\n'
+
+        const file = await selectSingleFile([
+            'mp3', 'ogg', 'wav', 'flac',
+            'mp4', 'webm', 'mkv', 'avi', 'mov'  
+        ])
+
+        if(!file){
+            outputText = ''
+            return
+        }
+
+        const videos = [
+            'mp4', 'webm', 'mkv', 'avi', 'mov'
+        ]
+
+        const ext = file.name.split('.').pop()
+
+        fileB64 = `data:${
+            videos.includes(ext) ? 'video' : 'audio'
+        }/${ext};base64,${Buffer.from(file.data).toString('base64')}`
+
+        const media = {
+            type: videos.includes(ext) ? 'video' : 'audio',
+            base64: fileB64,
+        } as const
+
+        let time = ''
+
+        if(prompt.includes('{{slot::time}}')){
+            const video = document.createElement('video')
+            video.src = fileB64
+            video.preload = 'metadata'
+            video.muted = true
+            await video.play()
+            const d = video.duration
+            console.log(d)
+            if(isNaN(d)){
+                time = 'unknown'
+            }else{
+                time = `${Math.floor(d / 60)}:${Math.floor(d % 60)}`
+            }
+            video.pause()
+            video.remove()
+        }
+
+        const v =await requestChatData({
+            formated: [{
+                role: "user",
+                content: risuChatParser(prompt).replace(/{{slot}}/g, selLang).replace(/{{slot::time}}/g, time),
+                multimodals: [media]
+            }],
+            bias: {},
+            useStreaming: true
+        }, 'model')
+
+        if(v.type === 'multiline'){
+            alertError(v.result[0][1])
+            return
+        }
+
+        if(v.type !== 'streaming'){
+            alertError(v.result)
+            return
+        }
+
+        const reader = v.result.getReader()
+
+        while(true){
+            const { done, value } = await reader.read()
+            if(done){
+                break
+            }
+            const firstKey = Object.keys(value)[0]
+
+            outputText = value[firstKey]
+        }
+
+        const extracted = outputText.matchAll(/```(web)?(vtt)?\n(.*?)\n```/gs)
+
+        let latest = ''
+        for(const match of extracted){
+            latest = match[3].trim()
+        }
+
+        vobj = convertTransToObj(latest)
+        outputText = makeWebVtt(vobj)
+        vttB64 = `data:text/vtt;base64,${Buffer.from(outputText).toString('base64')}`
+    }
+
+    async function runWhisperMode() {
+        outputText = 'Loading...\n\n'
+
+        const files = await selectFileByDom([
+            'mp3', 'ogg', 'wav', 'flac',
+            'mp4', 'webm', 'mkv', 'avi', 'mov'  
+
+        ])
+
+        const file = files?.[0]
+
+        if(!file){
+            outputText = ''
+            return
+        }
+
+        const formData = new FormData()
+
+        const videos = [
+            'mp4', 'webm', 'mkv', 'avi', 'mov'
+        ]
+
+        const ext = file.name.split('.').pop()
+        if(videos.includes(ext)){
+            
+
+            //check duration
+            let duration = 0
+            {
+                const video = document.createElement('video')
+                video.src = URL.createObjectURL(file)
+                video.preload = 'metadata'
+                video.muted = true
+                await video.play()
+                const d = video.duration
+                if(isNaN(d)){
+                    alertError('This video does not have a duration')
+                    return
+                }
+                video.pause()
+                video.remove()
+                duration = d
+            }
+
+            outputText = 'Converting video to audio...\n\n'
+            const audioContext = new AudioContext()
+            const audioBuffer = await audioContext.decodeAudioData(await file.arrayBuffer())
+
+            const [left, right] =  [audioBuffer.getChannelData(0), audioBuffer.getChannelData(1)]
+
+            const leftInt16 = new Int16Array(left.length)
+            const rightInt16 = new Int16Array(right.length)
+
+            for(let i = 0; i < left.length; i++){
+                leftInt16[i] = left[i] * 0x7FFF
+                rightInt16[i] = right[i] * 0x7FFF
+            }
+
+            const lamejs = await import('@breezystack/lamejs')
+            const mp3encoder = new lamejs.Mp3Encoder(2, 44100, 128);
+            const enc = new AppendableBuffer()
+
+            for(let pointer = 0; pointer < leftInt16.length; pointer += 1152){
+                enc.append(mp3encoder.encodeBuffer(leftInt16.subarray(pointer, pointer + 1152), rightInt16.subarray(pointer, pointer + 1152)))
+                if(pointer % 115200 === 0){
+                    outputText = `Converting  video to audio... ${(pointer / leftInt16.length * 100).toFixed(2)}%\n`
+                    await sleep(1)
+                }
+            }
+            enc.append(mp3encoder.flush())
+
+            const file2 = new File([enc.buffer], 'audio.mp3', {
+                type: 'audio/mp3'
+            })
+
+            outputText = 'Transcribing audio...\n\n'
+            formData.append('file', file2)
+        }
+        else{
+            formData.append('file', file)
+        }
+
+        formData.append('model', 'whisper-1')
+        formData.append('response_format', 'vtt')
+
+
+        const d = await fetch('https://api.openai.com/v1/audio/transcriptions', {
+            method: 'POST',
+            headers: {
+                'Authorization': `Bearer ${DBState.db.openAIKey}`
+            },
+            body: formData
+
+        })
+
+        const fileBuffer = await file.arrayBuffer()
+
+        outputText = await d.text()
+
+        const v = await requestChatData({
+            formated: [{
+                role: "user",
+                content: risuChatParser(prompt).replace(/{{slot}}/g, selLang).replace(/{{slot::data}}/g, outputText),
+            }],
+            bias: {},
+            useStreaming: true
+        }, 'model')
+
+
+        if(v.type === 'multiline'){
+            alertError(v.result[0][1])
+            return
+        }
+
+        if(v.type !== 'streaming'){
+            alertError(v.result)
+            return
+        }
+
+        console.log("Reading...")
+
+        const reader = v.result.getReader()
+
+        while(true){
+            const { done, value } = await reader.read()
+            if(done){
+                break
+            }
+            const firstKey = Object.keys(value)[0]
+
+            outputText = value[firstKey]
+        }
+
+        console.log(outputText)
+
+        if(!outputText.trim().endsWith('```')){
+            outputText = outputText.trim() + '\n```'
+        }
+
+        const extracted = outputText.matchAll(/```(web)?(vtt)?\n(.*?)\n```/gs)
+
+        let latest = ''
+        for(const match of extracted){
+            latest = match[3].trim()
+        }
+
+        outputText = latest
+        vttB64 = `data:text/vtt;base64,${Buffer.from(outputText).toString('base64')}`
+        fileB64 = `data:audio/wav;base64,${Buffer.from(fileBuffer).toString('base64')}`
+        vobj = convertWebVTTtoObj(outputText)
+
+
+    }
+
+    
+
+
+    type TranscribeObj = {
+        start: string
+        end: string
+        text: string
+    }
+    
+
+    function convertTransToObj(r:string){
+        const lines = r.split('\n').map(v => v.trim()).filter(v => v)
+        const obj:TranscribeObj[] = []
+        for(let i = 0; i < lines.length; i++){
+            const line = lines[i]
+            if(line.startsWith('[')){
+                let [time, ...text] = line.split(']')
+                time = time.slice(1)
+                if(obj.length > 0){
+                    obj[obj.length - 1].end = time + '.000'
+                }
+                obj.push({
+                    start: time + '.000',
+                    end: '',
+                    text: text.join(' ')
+                })
+            }
+        }
+        //rediculously long line
+        obj[obj.length - 1].end = '99:99.000'
+        return obj
+    }
+
+    function convertWebVTTtoObj(r:string){
+        const chunks = r.split('\n\n').map(v => v.trim()).filter(v => v)
+        const obj:TranscribeObj[] = []
+        for(const chunk of chunks){
+            if(chunk.startsWith('WEBVTT')){
+                continue
+            }
+            const [time, ...text] = chunk.split('\n')
+            const [start, end] = time.split(' --> ')
+            obj.push({
+                start: start,
+                end: end,
+                text: text.join('\n')
+            })
+        }
+        return obj
+    }
+
+    function makeWebVtt(obj: TranscribeObj[]){
+        let vtt = 'WEBVTT\n\n'
+
+        for(const line of obj){
+            vtt += `${line.start} --> ${line.end}\n${line.text}\n\n`
+        }
+
+        return vtt
+    }
+
+    function webVttToSrt(){
+        const srt = outputText.replace('WEBVTT', '').trim().split('\n\n').map((v, i) => {
+            const [time, ...text] = v.split('\n')
+            const [start, end] = time.split(' --> ')
+            return `${i + 1}\n${start.replace('.', ',')} --> ${end.replace('.', ',')}\n${text.join('\n')}`
+        })
+        return srt
+    }
+
+    type WaveOptions = {
+        isFloat: boolean
+        numChannels: number
+        sampleRate: number
+    }
+</script>
+
+<h2 class="text-4xl text-textcolor my-6 font-black relative">{language.subtitles}</h2>
+
+<span class="text-textcolor text-lg mt-4">{language.language}</span>
+<TextInput bind:value={selLang} />
+
+<span class="text-textcolor text-lg mt-4">{language.prompt}</span>
+<TextAreaInput bind:value={prompt} />
+
+<span class="text-textcolor text-lg mt-4">{language.type}</span>
+<SelectInput bind:value={mode} onchange={(e) => {
+    if(mode === 'llm'){
+        prompt = LLMModePrompt
+    }
+    if(mode === 'whisper'){
+        prompt = WhisperModePrompt
+    }
+}}>
+    <OptionInput value="llm">LLM</OptionInput>
+    <OptionInput value="whisper">Whisper</OptionInput>
+</SelectInput>
+
+{#if !(modelInfo.flags.includes(LLMFlags.hasAudioInput) && modelInfo.flags.includes(LLMFlags.hasVideoInput))}
+    <span class="text-draculared text-lg mt-4">{language.subtitlesWarning1}</span>
+{/if}
+{#if !(modelInfo.flags.includes(LLMFlags.hasStreaming) && DBState.db.useStreaming)}
+    <span class="text-draculared text-lg mt-4">{language.subtitlesWarning2}</span>
+{/if}
+
+{#if !outputText}
+    <Button className="mt-4" onclick={() => {
+        if(mode === 'llm'){
+            runLLMMode()
+        }
+        if(mode === 'whisper'){
+            runWhisperMode()
+        }
+    }}>
+        {language.run}
+    </Button>
+{:else if vttB64 && fileB64}
+    <details class="mt-4">
+        <pre>{outputText}</pre>
+    </details>
+{:else}
+    <pre>{outputText}</pre>
+{/if}
+
+{#if vttB64 && fileB64}
+    <div class="mt-4">
+        {#key vttB64}
+            <video controls src={fileB64} class="w-full">
+                <track default kind="captions" src={vttB64} srclang="en" />
+            </video>
+        {/key}
+    </div>
+
+    <span class="text-textcolor text-lg mt-4">{language.download}</span>
+
+    <Button className="mt-4" onclick={() => {
+        outputText = ''
+        fileB64 = ''
+        vttB64 = ''
+    }}>
+        {language.reset}
+    </Button>
+
+    <Button className="mt-4" onclick={async () => {
+        const sel = parseInt(await alertSelect([
+            'WebVTT',
+            'SRT'
+        ]))
+        const a = document.createElement('a')
+
+        // WebVTT
+        if(sel === 0){
+            downloadFile('subtitle.vtt', outputText)
+            return
+        }
+
+        // SRT
+        if(sel === 1){
+            downloadFile('subtitle.srt', webVttToSrt().join('\n\n'))
+            return   
+        }
+    }}>
+        {language.download}
+    </Button>
+{/if}
\ No newline at end of file
diff --git a/src/ts/observer.ts b/src/ts/observer.ts
index a40f870c..b868cb9d 100644
--- a/src/ts/observer.ts
+++ b/src/ts/observer.ts
@@ -8,6 +8,7 @@ function nodeObserve(node:HTMLElement){
     const triggerName = node.getAttribute('risu-trigger');
     const btnEvent = node.getAttribute('risu-btn');
     const observerAdded = node.getAttribute('risu-observer');
+    const hlLang = node.getAttribute('x-hl-lang');
 
     if(observerAdded){
         return
@@ -45,13 +46,65 @@ function nodeObserve(node:HTMLElement){
         node.setAttribute('risu-observer', 'true');
         return
     }
+
+    if(hlLang){
+        node.addEventListener('contextmenu', (e)=>{
+            e.preventDefault();
+            const menu = document.createElement('div');
+            menu.setAttribute('class', 'fixed z-50 min-w-[160px] py-2 bg-gray-800 rounded-lg border border-gray-700')
+
+            const copyOption = document.createElement('div');
+            copyOption.textContent = 'Copy';
+            copyOption.setAttribute('class', 'px-4 py-2 text-sm text-gray-300 hover:bg-gray-700 cursor-pointer')
+            copyOption.addEventListener('click', ()=>{
+                navigator.clipboard.writeText(node.getAttribute('x-hl-text'));
+                menu.remove();
+            })
+
+            const downloadOption = document.createElement('div');
+            downloadOption.textContent = 'Download';
+            downloadOption.setAttribute('class', 'px-4 py-2 text-sm text-gray-300 hover:bg-gray-700 cursor-pointer')
+            downloadOption.addEventListener('click', ()=>{
+                const a = document.createElement('a');
+                a.href = URL.createObjectURL(new Blob([node.getAttribute('x-hl-text')], {type: 'text/plain'}));
+                a.download = 'code.' + hlLang;
+                a.click();
+                menu.remove();
+            })
+
+            menu.appendChild(copyOption);
+            menu.appendChild(downloadOption);
+
+            menu.style.left = e.clientX + 'px';
+            menu.style.top = e.clientY + 'px';
+
+            document.body.appendChild(menu);
+            
+            document.addEventListener('click', ()=>{
+                menu.remove();
+            }, {once: true})
+        })
+    }
 }
 
 export async function startObserveDom(){
+    //For codeblock we are using MutationObserver since it doesn't appear well
+
+    const observer = new MutationObserver((mutations) => {
+        mutations.forEach((mutation) => {
+            mutation.addedNodes.forEach((node) => {
+                if(node instanceof HTMLElement){
+                    nodeObserve(node);
+                }
+            })
+        })
+    })
+
     //We are using a while loop intead of MutationObserver because MutationObserver is expensive for just a few elements
     while(true){
         document.querySelectorAll('[risu-trigger]').forEach(nodeObserve);
         document.querySelectorAll('[risu-btn]').forEach(nodeObserve);
+        document.querySelectorAll('[x-hl-lang]').forEach(nodeObserve);
         await sleep(100);
     }
 }
\ No newline at end of file
diff --git a/src/ts/parser.svelte.ts b/src/ts/parser.svelte.ts
index 48f8f3f5..03b56482 100644
--- a/src/ts/parser.svelte.ts
+++ b/src/ts/parser.svelte.ts
@@ -117,18 +117,30 @@ async function renderHighlightableMarkdown(data:string) {
             //import language if not already loaded
             //we do not refactor this to a function because we want to keep vite to only import the languages that are needed
             let languageModule:any = null
+            let shotLang = ''
             switch(lang){
                 case 'js':
                 case 'javascript':{
                     lang = 'javascript'
+                    shotLang = 'js'
                     if(!hljs.getLanguage('javascript')){
                         languageModule = await import('highlight.js/lib/languages/javascript')
                     }
                     break
                 }
+                case 'txt':
+                case 'vtt':{
+                    shotLang = lang
+                    lang = 'plaintext'
+                    if(!hljs.getLanguage('plaintext')){
+                        languageModule = await import('highlight.js/lib/languages/plaintext')
+                    }
+                    break
+                }
                 case 'py':
                 case 'python':{
                     lang = 'python'
+                    shotLang = 'py'
                     if(!hljs.getLanguage('python')){
                         languageModule = await import('highlight.js/lib/languages/python')
                     }
@@ -136,6 +148,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'css':{
                     lang = 'css'
+                    shotLang = 'css'
                     if(!hljs.getLanguage('css')){
                         languageModule = await import('highlight.js/lib/languages/css')
                     }
@@ -144,6 +157,7 @@ async function renderHighlightableMarkdown(data:string) {
                 case 'xml':
                 case 'html':{
                     lang = 'xml'
+                    shotLang = 'xml'
                     if(!hljs.getLanguage('xml')){
                         languageModule = await import('highlight.js/lib/languages/xml')
                     }
@@ -151,6 +165,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'lua':{
                     lang = 'lua'
+                    shotLang = 'lua'
                     if(!hljs.getLanguage('lua')){
                         languageModule = await import('highlight.js/lib/languages/lua')
                     }
@@ -158,6 +173,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'dart':{
                     lang = 'dart'
+                    shotLang = 'dart'
                     if(!hljs.getLanguage('dart')){
                         languageModule = await import('highlight.js/lib/languages/dart')
                     }
@@ -165,6 +181,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'java':{
                     lang = 'java'
+                    shotLang = 'java'
                     if(!hljs.getLanguage('java')){
                         languageModule = await import('highlight.js/lib/languages/java')
                     }
@@ -172,6 +189,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'rust':{
                     lang = 'rust'
+                    shotLang = 'rs'
                     if(!hljs.getLanguage('rust')){
                         languageModule = await import('highlight.js/lib/languages/rust')
                     }
@@ -180,6 +198,7 @@ async function renderHighlightableMarkdown(data:string) {
                 case 'c':
                 case 'cpp':{
                     lang = 'cpp'
+                    shotLang = 'cpp'
                     if(!hljs.getLanguage('cpp')){
                         languageModule = await import('highlight.js/lib/languages/cpp')
                     }
@@ -188,6 +207,7 @@ async function renderHighlightableMarkdown(data:string) {
                 case 'csharp':
                 case 'cs':{
                     lang = 'csharp'
+                    shotLang = 'cs'
                     if(!hljs.getLanguage('csharp')){
                         languageModule = await import('highlight.js/lib/languages/csharp')
                     }
@@ -196,6 +216,7 @@ async function renderHighlightableMarkdown(data:string) {
                 case 'ts':
                 case 'typescript':{
                     lang = 'typescript'
+                    shotLang = 'ts'
                     if(!hljs.getLanguage('typescript')){
                         languageModule = await import('highlight.js/lib/languages/typescript')
                     }
@@ -203,6 +224,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'json':{
                     lang = 'json'
+                    shotLang = 'json'
                     if(!hljs.getLanguage('json')){
                         languageModule = await import('highlight.js/lib/languages/json')
                     }
@@ -210,6 +232,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'yaml':{
                     lang = 'yaml'
+                    shotLang = 'yml'
                     if(!hljs.getLanguage('yaml')){
                         languageModule = await import('highlight.js/lib/languages/yaml')
                     }
@@ -217,6 +240,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'shell':{
                     lang = 'shell'
+                    shotLang = 'sh'
                     if(!hljs.getLanguage('shell')){
                         languageModule = await import('highlight.js/lib/languages/shell')
                     }
@@ -224,6 +248,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 case 'bash':{
                     lang = 'bash'
+                    shotLang = 'sh'
                     if(!hljs.getLanguage('bash')){
                         languageModule = await import('highlight.js/lib/languages/bash')
                     }
@@ -231,6 +256,7 @@ async function renderHighlightableMarkdown(data:string) {
                 }
                 default:{
                     lang = 'none'
+                    shotLang = 'none'
                 }
             }
             if(languageModule){
@@ -244,7 +270,9 @@ async function renderHighlightableMarkdown(data:string) {
                     language: lang,
                     ignoreIllegals: true
                 }).value
-                rendered = rendered.replace(placeholder, `<pre class="hljs"><code>${highlighted}</code></pre>`)   
+                rendered = rendered.replace(placeholder, `<pre class="hljs" x-hl-lang="${shotLang}" x-hl-text="${
+                    Buffer.from(code).toString('hex')
+                }"><code>${highlighted}</code></pre>`)   
             }
         } catch (error) {
             
@@ -492,8 +520,8 @@ export async function ParseMarkdown(
         data = await renderHighlightableMarkdown(data)
     }
     return decodeStyle(DOMPurify.sanitize(data, {
-        ADD_TAGS: ["iframe", "style", "risu-style", "x-em"],
-        ADD_ATTR: ["allow", "allowfullscreen", "frameborder", "scrolling", "risu-btn", 'risu-trigger', 'risu-mark'],
+        ADD_TAGS: ["iframe", "style", "risu-style", "x-em",],
+        ADD_ATTR: ["allow", "allowfullscreen", "frameborder", "scrolling", "risu-btn", 'risu-trigger', 'risu-mark', 'x-hl-lang', 'x-hl-text'],
     }))
 }
 
diff --git a/src/ts/process/request.ts b/src/ts/process/request.ts
index 2942bf5d..adb27280 100644
--- a/src/ts/process/request.ts
+++ b/src/ts/process/request.ts
@@ -500,12 +500,12 @@ async function requestOpenAI(arg:RequestDataArgumentExtended):Promise<requestDat
             }
             else{
                 const prevChat = reformatedChat[reformatedChat.length-1]
-                if(prevChat.role === chat.role){
+                if(prevChat?.role === chat.role){
                     reformatedChat[reformatedChat.length-1].content += '\n' + chat.content
                     continue
                 }
                 else if(chat.role === 'system'){
-                    if(prevChat.role === 'user'){
+                    if(prevChat?.role === 'user'){
                         reformatedChat[reformatedChat.length-1].content += '\nSystem:' + chat.content
                     }
                     else{
@@ -1387,14 +1387,50 @@ async function requestGoogleCloudVertex(arg:RequestDataArgumentExtended):Promise
     for(let i=0;i<formated.length;i++){
         const chat = formated[i]
   
-        if(i === 0){
-            if(chat.role === 'user' || chat.role === 'assistant'){
-                reformatedChat.push({
-                    role: chat.role === 'user' ? 'USER' : 'MODEL',
-                    parts: [{
-                        text: chat.content
-                    }]
-                })
+        const prevChat = reformatedChat[reformatedChat.length-1]
+        const qRole = 
+            chat.role === 'user' ? 'USER' :
+            chat.role === 'assistant' ? 'MODEL' :
+            chat.role
+
+        if (chat.multimodals && chat.multimodals.length > 0 && chat.role === "user") {
+            let geminiParts: GeminiPart[] = [];
+            
+            geminiParts.push({
+                text: chat.content,
+            });
+            
+            for (const modal of chat.multimodals) {
+                if (
+                    (modal.type === "image" && arg.modelInfo.flags.includes(LLMFlags.hasImageInput)) ||
+                    (modal.type === "audio" && arg.modelInfo.flags.includes(LLMFlags.hasAudioInput)) ||
+                    (modal.type === "video" && arg.modelInfo.flags.includes(LLMFlags.hasVideoInput))
+                ) {
+                    const dataurl = modal.base64;
+                    const base64 = dataurl.split(",")[1];
+                    const mediaType = dataurl.split(";")[0].split(":")[1];
+        
+                    geminiParts.push({
+                        inlineData: {
+                            mimeType: mediaType,
+                            data: base64,
+                        }
+                    });
+                }
+            }
+    
+            reformatedChat.push({
+                role: "USER",
+                parts: geminiParts,
+            });
+    
+        } else if (prevChat?.role === qRole) {
+            reformatedChat[reformatedChat.length-1].parts[0].text += '\n' + chat.content
+            continue
+        }
+        else if(chat.role === 'system'){
+            if(prevChat?.role === 'USER'){
+                reformatedChat[reformatedChat.length-1].parts[0].text += '\nsystem:' + chat.content
             }
             else{
                 reformatedChat.push({
@@ -1405,78 +1441,22 @@ async function requestGoogleCloudVertex(arg:RequestDataArgumentExtended):Promise
                 })
             }
         }
+
+        else if(chat.role === 'assistant' || chat.role === 'user'){
+            reformatedChat.push({
+                role: chat.role === 'user' ? 'USER' : 'MODEL',
+                parts: [{
+                    text: chat.content
+                }]
+            })
+        }
         else{
-            const prevChat = reformatedChat[reformatedChat.length-1]
-            const qRole = 
-                chat.role === 'user' ? 'USER' :
-                chat.role === 'assistant' ? 'MODEL' :
-                chat.role
-
-            if (chat.multimodals && chat.multimodals.length > 0 && chat.role === "user") {
-                let geminiParts: GeminiPart[] = [];
-                
-                geminiParts.push({
-                    text: chat.content,
-                });
-                
-                for (const modal of chat.multimodals) {
-                    if (
-                        (modal.type === "image" && arg.modelInfo.flags.includes(LLMFlags.hasImageInput)) ||
-                        (modal.type === "audio" && arg.modelInfo.flags.includes(LLMFlags.hasAudioInput)) ||
-                        (modal.type === "video" && arg.modelInfo.flags.includes(LLMFlags.hasVideoInput))
-                    ) {
-                        const dataurl = modal.base64;
-                        const base64 = dataurl.split(",")[1];
-                        const mediaType = dataurl.split(";")[0].split(":")[1];
-            
-                        geminiParts.push({
-                            inlineData: {
-                                mimeType: mediaType,
-                                data: base64,
-                            }
-                        });
-                    }
-                }
-        
-                reformatedChat.push({
-                    role: "USER",
-                    parts: geminiParts,
-                });
-        
-            } else if (prevChat.role === qRole) {
-                reformatedChat[reformatedChat.length-1].parts[0].text += '\n' + chat.content
-                continue
-            }
-            else if(chat.role === 'system'){
-                if(prevChat.role === 'USER'){
-                    reformatedChat[reformatedChat.length-1].parts[0].text += '\nsystem:' + chat.content
-                }
-                else{
-                    reformatedChat.push({
-                        role: "USER",
-                        parts: [{
-                            text: chat.role + ':' + chat.content
-                        }]
-                    })
-                }
-            }
-
-            else if(chat.role === 'assistant' || chat.role === 'user'){
-                reformatedChat.push({
-                    role: chat.role === 'user' ? 'USER' : 'MODEL',
-                    parts: [{
-                        text: chat.content
-                    }]
-                })
-            }
-            else{
-                reformatedChat.push({
-                    role: "USER",
-                    parts: [{
-                        text: chat.role + ':' + chat.content
-                    }]
-                })
-            }
+            reformatedChat.push({
+                role: "USER",
+                parts: [{
+                    text: chat.role + ':' + chat.content
+                }]
+            })
         }
     }