
Lightning Speak AI is an on-device AI-powered speech input method that prioritizes on-device processing to boost text input speed through voice.
It follows an on-device-first approach: voice and text data are processed on the user’s device and never sent to the provider’s servers, with a commitment not to collect user input.
Currently available for macOS and Windows with client apps; download the matching version to install and use.
Core speech recognition runs offline on-device; no internet required. Some AI enhancements may require connecting to third-party model APIs configured by the user.
According to official data, it can reach about 220 words per minute with around 0.2s latency.
A free basic version is available, along with a premium subscription that unlocks more features.
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