Lightning fast
Instant response. Speak, and the words land where you're typing — no perceptible lag, no waiting on a remote pipeline.
Your voice.
Instantly.
Fast. Intelligent. Hands-free. Speak to type, or speak to act.
macOS 13+ · Apple Silicon & Intel
Why CastWord
Speak.
Everything follows.
Intelligent
Powered by the major LLMs — best-in-class speech and reasoning, swapped in as the frontier moves. You always get the smart one.
System-wide
Lives in your menu bar. Works across every text field on macOS — Slack, Terminal, browser, native apps — without an app switch.
Privacy-first
Your voice never touches our servers. Audio streams directly from your Mac to the model. No recordings, no replay, no listening in.
Modes
Two ways to speak.
Both feel instant.
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Voice to Text
Speak. CastWord types it — anywhere on macOS, in any app, in real time. Long-form drafting, quick replies, code comments, all hands-free.
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Voice to Action
Tell your Mac what to do — open apps, navigate the browser, run a task. CastWord turns words into computer-use actions, no clicking required.
Price and Usage
Free with your key.
Managed and local options coming soon.
Free
BYOK
$0 forever
For users who already have an OpenAI key.
- Voice to Text
- Voice to Action
- $0 service charge — just bring your OpenAI key
Coming soon
Managed plans
Subscription with credits and top-ups, coming soon.
Notify meComing soon
Local models
$0 your hardware
Run Whisper and LLMs locally via Ollama. Fully offline.
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