Seed Speech TTS 2.0

Speech

seed-speech-tts-2.0

ByteDance|Created Oct 30, 2026

Speech

TTS 2.0 presents Query-Response mechanism that brings the next generation of speech technologies. It can synchronously understand both Query and Response texts, greatly expanding the scope of contextual comprehension and significantly enhancing the anthropomorphism and emotional expression in conversations.

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Endpoints and request shape

This page collects the public integration surface for the model: supported endpoints, available request parameters, and example calls through the NagaAI API.

Speech

Code Example

Example code for using this model through our API with Python (OpenAI SDK) or cURL. Replace placeholders with your API key and model ID.

Basic request example. Ensure API key permissions. For more details, see our documentation.

from openai import OpenAI
from pathlib import Path

client = OpenAI(base_url="https://api.naga.ac/v1", api_key="YOUR_API_KEY")

speech_file_path = Path("speech.mp3")
resp = client.audio.speech.create(
    model="seed-speech-tts-2.0",
    voice="alloy",
    input="Hello from NagaAI Text-to-Speech!"
)
resp.stream_to_file(speech_file_path)

Supported Parameters

Available parameters for API requests

InstructionsSpeedResponse Format