Lisen Brings Cartesia Voices To Articles.

Lisen’s strongest idea is its bring-your-own-API model: existing Cartesia users get a focused reading tool without another recurring fee.

• –Streams speech or generates complete audio with scrubbing and accurate timing.
• –Highlights passages and spoken words directly on the webpage.
• –Supports cloned and custom Cartesia voices, plus WAV downloads with saved word timings.
• –Keeps the API key and settings locally, sending page content to Cartesia only when playback starts.
• –Its main limitation is a narrow audience: users must already have Cartesia and still pay for generated speech.