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Podcast narration AI

Produce emotionally directed podcast narration and host reads with Cast and Voice Designer.

Studio-feeling voice production at long-form API economics.

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How it works

  1. 1

    Design the voice

    Create a host, narrator, or branded voice with Voice Designer.

  2. 2

    Direct emotion

    Guide tone, pacing, emphasis, and delivery for each segment.

  3. 3

    Render long form

    Use Cast async synthesis at $0.02/min ($1.20/hr) for episode-scale audio, with commercial rights included.

Built on

CastEmotional long-form TTS for podcasts, narration, and audiobooks.SpeakText-to-speech that starts in milliseconds.

Stop paying for stitched voice AI.

Start with a free key, 10,000 Hear minutes every month, and $50 in credits. Test the same OpenAI-compatible stack you can take to production with Omni, Agents, and Trace.

Get a free key Model your spend

No credit card - OpenAI-compatible - cancel anytime