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Seed Speech 2.0 API

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bytedance/seed-speech-2.0/text-to-speech

ByteDance's Seed Speech 2.0 text-to-speech turns a script into a 24 kHz mono MP3 in one of 41 preset voices. Speed, pitch and volume are adjustable, plain-language delivery notes direct the tone, and no content filter is applied.

From $0.072/1,000 characters
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These examples were written for this endpoint. Replace the prompt and sample media URLs with your own accessible inputs, then check the current quote and model availability before submitting.

  • 0:00 / –:––
    late-night-voice-note

    The voice-note script in stokie_en with a one-sentence instruction: soft, breathy and intimate. The instruction changes the delivery and is neither spoken nor billed.

    • stokie_en
  • 0:00 / –:––
    storm-cabin-chapter

    Romance narration in tim_en with a warm audiobook instruction. The price was known before the run: it is the character count of the script at the per-1,000-character rate.

    • tim_en
  • 0:00 / –:––
    spanish-stay-a-little

    A playful Spanish line in felipe_es with language forced to es-mx, showing a native Spanish voice rather than an English voice reading Spanish.

    • es-mx
    • felipe_es

This example starts at $0.072 per 1,000 characters. The Playground updates the estimate when you change the settings.