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Voice Settings
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Use Your Own API Key
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OpenAI TTS uses the tts-1 model — natural, high quality voices (alloy, echo, fable, onyx, nova, shimmer). Get a key at platform.openai.com. Your key is stored locally in your browser only — never sent to MasterClaw servers.
Tips
Free voices
Browser voices work instantly, no key needed. Quality varies by browser and OS.
Speed tip
1.2x–1.4x speed is ideal for reading articles without losing comprehension.
Your key, your data
API keys are saved in your browser only. MasterClaw never sees or stores them.
Paste anything
Articles, emails, reports, scripts. Up to 50,000 characters (~10,000 words) per session.