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Settings

Controls both transcription and chat. Cloud mode uses your OpenRouter API key. Auto mode tries cloud first, falls back to local.


๐ŸŽ™๏ธ Transcription Model

โญ whisper-medium (q4): 7/7 Arabic key words correct. ~680MB download (one-time). WebGPU required (Chrome/Edge 113+). On non-WebGPU browsers, falls back to whisper-small (510MB, fewer Arabic errors).

๐Ÿ’ฌ Chat LLM Model

Runs in your browser via WebGPU. No API key needed. Cached after first download.

โœ… All browser AI features are free and private. No data leaves your device.

OpenRouter API Key

Get your key at openrouter.ai/keys or click "Get Key" for instructions.


โ˜๏ธ Cloud Chat Model

Select "openrouter" as chat provider to use this model. Leave as "Default" to let OpenRouter choose.


๐ŸŽ™๏ธ Cloud Transcription

๐Ÿ† Microsoft MAI-Transcribe 1.5: 2690 chars / 4min. 3.6s. $0.024. Proper Arabic punctuation (ุŒ . ุŸ). Best quality.

No download needed. 4-min audio costs $0.007-$0.024. Upstream timeout: 60s per request.


๐ŸŒ Subtitle Translation Model

Flash models recommended for subtitles โ€” fast and cost-effective. Prices per 1M tokens via OpenRouter.


โšก Audio Speed (for cloud transcription)

1.0x (default): Full quality. 4-min audio = 7.3MB upload. No quality loss.

Speed-up reduces upload size and processing time. Higher speeds may slightly affect word accuracy for Arabic.

โ˜๏ธ Cloud models require an OpenRouter API key. Pay per use. Data is sent to OpenRouter servers for processing.


๐ŸŒ Peer-to-Peer Subtitle Sharing

Share subtitles directly with other users via WebRTC. No data passes through any server.

Room Mode

Custom Room ID

Appearance

Google API Key

Claude API Key


Debug

How to Get API Keys

OpenRouter โ€” One key for all cloud AI features (transcription, chat, translation)

  1. Visit openrouter.ai/keys
  2. Sign up or log in (Google/GitHub login supported)
  3. Click "Create Key"
  4. Copy the key (starts with sk-or-)
  5. In YouTube Lang Tools โ†’ Settings โ†’ paste in "OpenRouter API Key"
๐Ÿ’ก Cost: Transcription ~$0.024/video. Chat ~$0.01/message. Translation ~$0.001/video. Most features cost less than $0.05 per video.

Google API Key Optional
  1. Go to Google Cloud Console
  2. Create a project โ†’ Enable Gemini API
  3. Go to APIs & Services โ†’ Credentials
  4. Click "Create Credentials" โ†’ "API Key"
  5. Paste in YouTube Lang Tools โ†’ Settings โ†’ "Google API Key"
Claude API Key Optional
  1. Visit console.anthropic.com
  2. Sign up or log in
  3. Navigate to API Keys โ†’ "Create Key"
  4. Paste in YouTube Lang Tools โ†’ Settings โ†’ "Claude API Key"
๐Ÿ”’ Privacy: All API keys are stored locally in your browser (localStorage). They are sent only to the respective API providers via our server proxy โ€” we never store or log them.