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API 參考
API 參考

Gemini TTS 文字轉語音

使用文字轉語音端點建立非同步 Task。

檢視 Markdown
01

概覽

使用文字轉語音端點搭配支援的模型。使用回傳的 Task ID 擷取其狀態，或提供 callback_url 以接收下方說明的回呼通知。

快速入門

  1. 建立 API 金鑰並將其設定為 RUNAPI_API_KEY。
  2. 選擇支援的模型，並傳送本文符合該模型結構描述的 POST 請求。
  3. 儲存返回的任務 ID，然後輪詢直到終止狀態，或處理下方說明的回呼。

端點

POST /api/v1/gemini_tts/text_to_speech
基礎 URL
https://runapi.ai
API 版本
v1
身分驗證
Authorization: Bearer YOUR_API_TOKEN
02

支援的模型

開啟模型頁面以查看目前的定價、速率限制及商業用途詳情。

03

請求綱要

JSON 請求內文

欄位及允許值取決於所選模型。若提供 callback_url，其將接收下方記錄的 Task 交付內容。

gemini-2.5-pro-tts15 個欄位
callback_urlstring
選填

用於非同步通知的 Webhook URL。

dialogue_turnsarray
必填

非空的有序對話輪次，其說話者 id 須參照已設定的說話者。

項目數上限: 1
dialogue_turns[].speaker_idstring
必填

與已設定的 speakers[].speaker_id 相符的識別碼。

dialogue_turns[].textstring
必填

口述文字，最多 10,000 個字元。

邊界: 10000
modelstring
必填

模型 slug。

sample_contextstring
選填

整體傳遞情境與語氣。

scenestring
選填

場景與錄製環境。

speakersarray
必填

非空的說話者設定，具有唯一的 Speaker N 識別碼。

項目數上限: 1
speakers[].accentstring
選填

說話者口音。

允許的值: Neutral, American (Gen), American (Valley), American (South), British (RP), British (Brixton), Transatlantic, Australian
speakers[].audio_profilestring
選填

選用的語音角色引導。

speakers[].pacestring
選填

說話者語速。

允許的值: Natural, Rapid Fire, The Drift, Staccato
speakers[].speaker_idstring
必填

以 Speaker N 格式表示的唯一識別碼。

speakers[].stylestring
選填

說話者表達風格。

允許的值: Vocal Smile, Newscaster, Whisper, Empathetic, Promo/Hype, Deadpan
speakers[].voice_namestring
必填

預設語音名稱。

允許的值: Achernar, Achird, Algenib, Algieba, Alnilam, Aoede, Autonoe, Callirrhoe, Charon, Despina, Enceladus, Erinome, Fenrir, Gacrux, Iapetus, Kore, Laomedeia, Leda, Orus, Puck, Pulcherrima, Rasalgethi, Sadachbia, Sadaltager, Schedar, Sulafat, Umbriel, Vindemiatrix, Zephyr, Zubenelgenubi
temperaturenumber
選填

取樣溫度。

預設值: 1 範圍: 0 - 2
gemini-3.1-flash-tts15 個欄位
callback_urlstring
選填

用於非同步通知的 Webhook URL。

dialogue_turnsarray
必填

非空的有序對話輪次，其說話者 id 須參照已設定的說話者。

項目數上限: 1
dialogue_turns[].speaker_idstring
必填

與已設定的 speakers[].speaker_id 相符的識別碼。

dialogue_turns[].textstring
必填

口述文字，最多 10,000 個字元。

邊界: 10000
modelstring
必填

模型 slug。

sample_contextstring
選填

整體傳遞情境與語氣。

scenestring
選填

場景與錄製環境。

speakersarray
必填

非空的說話者設定，具有唯一的 Speaker N 識別碼。

項目數上限: 1
speakers[].accentstring
選填

說話者口音。

允許的值: Neutral, American (Gen), American (Valley), American (South), British (RP), British (Brixton), Transatlantic, Australian
speakers[].audio_profilestring
選填

選用的語音角色引導。

speakers[].pacestring
選填

說話者語速。

允許的值: Natural, Rapid Fire, The Drift, Staccato
speakers[].speaker_idstring
必填

以 Speaker N 格式表示的唯一識別碼。

speakers[].stylestring
選填

說話者表達風格。

允許的值: Vocal Smile, Newscaster, Whisper, Empathetic, Promo/Hype, Deadpan
speakers[].voice_namestring
必填

預設語音名稱。

允許的值: Achernar, Achird, Algenib, Algieba, Alnilam, Aoede, Autonoe, Callirrhoe, Charon, Despina, Enceladus, Erinome, Fenrir, Gacrux, Iapetus, Kore, Laomedeia, Leda, Orus, Puck, Pulcherrima, Rasalgethi, Sadachbia, Sadaltager, Schedar, Sulafat, Umbriel, Vindemiatrix, Zephyr, Zubenelgenubi
temperaturenumber
選填

取樣溫度。

預設值: 1 範圍: 0 - 2
04

建立接受記錄

HTTP 202

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "billing": {
      "properties": {
        "refund": {
          "oneOf": [
            {
              "properties": {
                "refunded_at": {
                  "type": "string"
                }
              },
              "required": [
                "refunded_at"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "reservation": {
          "oneOf": [
            {
              "properties": {
                "amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "amount_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "settlement": {
          "oneOf": [
            {
              "properties": {
                "amount_micro_cents": {
                  "type": "integer"
                },
                "charged_amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "charged_amount_cents",
                "amount_micro_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        }
      },
      "required": [
        "reservation",
        "settlement",
        "refund"
      ],
      "type": "object",
      "unevaluatedProperties": false
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "processing"
      ],
      "type": "string"
    },
    "task_replayed": {
      "type": "boolean"
    }
  },
  "required": [
    "id",
    "status",
    "billing"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "billing": {
    "refund": null,
    "reservation": null,
    "settlement": null
  },
  "id": "tsk_reference_demo",
  "status": "processing"
}
05

輪詢處理中

HTTP 200

GET /api/v1/gemini_tts/text_to_speech/:id

回應綱要
JSON 
{
  "properties": {
    "billing": {
      "properties": {
        "refund": {
          "oneOf": [
            {
              "properties": {
                "refunded_at": {
                  "type": "string"
                }
              },
              "required": [
                "refunded_at"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "reservation": {
          "oneOf": [
            {
              "properties": {
                "amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "amount_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "settlement": {
          "oneOf": [
            {
              "properties": {
                "amount_micro_cents": {
                  "type": "integer"
                },
                "charged_amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "charged_amount_cents",
                "amount_micro_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        }
      },
      "required": [
        "reservation",
        "settlement",
        "refund"
      ],
      "type": "object",
      "unevaluatedProperties": false
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "processing"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "status",
    "billing"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "billing": {
    "refund": null,
    "reservation": null,
    "settlement": null
  },
  "id": "tsk_reference_demo",
  "status": "processing"
}
06

輪詢已完成

HTTP 200

GET /api/v1/gemini_tts/text_to_speech/:id

回應綱要
JSON 
{
  "properties": {
    "audios": {
      "items": {
        "properties": {
          "url": {
            "type": "string",
            "x-runapi-generated-media": true
          }
        },
        "required": [
          "url"
        ],
        "type": "object",
        "unevaluatedProperties": false
      },
      "type": "array"
    },
    "billing": {
      "properties": {
        "refund": {
          "oneOf": [
            {
              "properties": {
                "refunded_at": {
                  "type": "string"
                }
              },
              "required": [
                "refunded_at"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "reservation": {
          "oneOf": [
            {
              "properties": {
                "amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "amount_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "settlement": {
          "oneOf": [
            {
              "properties": {
                "amount_micro_cents": {
                  "type": "integer"
                },
                "charged_amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "charged_amount_cents",
                "amount_micro_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        }
      },
      "required": [
        "reservation",
        "settlement",
        "refund"
      ],
      "type": "object",
      "unevaluatedProperties": false
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "completed"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "status",
    "audios",
    "billing"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "audios": [
    {
      "url": "https://file.runapi.ai/reference-audio.mp3"
    }
  ],
  "billing": {
    "refund": null,
    "reservation": null,
    "settlement": null
  },
  "id": "tsk_reference_demo",
  "status": "completed"
}
07

輪詢失敗

HTTP 200

GET /api/v1/gemini_tts/text_to_speech/:id

回應綱要
JSON 
{
  "properties": {
    "billing": {
      "properties": {
        "refund": {
          "oneOf": [
            {
              "properties": {
                "refunded_at": {
                  "type": "string"
                }
              },
              "required": [
                "refunded_at"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "reservation": {
          "oneOf": [
            {
              "properties": {
                "amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "amount_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        },
        "settlement": {
          "oneOf": [
            {
              "properties": {
                "amount_micro_cents": {
                  "type": "integer"
                },
                "charged_amount_cents": {
                  "type": "integer"
                }
              },
              "required": [
                "charged_amount_cents",
                "amount_micro_cents"
              ],
              "type": "object",
              "unevaluatedProperties": false
            },
            {
              "enum": [
                null
              ]
            }
          ]
        }
      },
      "required": [
        "reservation",
        "settlement",
        "refund"
      ],
      "type": "object",
      "unevaluatedProperties": false
    },
    "error": {
      "type": "string"
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "failed"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "status",
    "error",
    "billing"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "billing": {
    "refund": null,
    "reservation": null,
    "settlement": null
  },
  "error": "Task processing failed.",
  "id": "tsk_reference_demo",
  "status": "failed"
}
08

客戶回呼：已完成

HTTP 200

POST callback_url

回應綱要
JSON 
{
  "properties": {
    "audios": {
      "items": {
        "properties": {
          "url": {
            "type": "string",
            "x-runapi-generated-media": true
          }
        },
        "required": [
          "url"
        ],
        "type": "object",
        "unevaluatedProperties": false
      },
      "type": "array"
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "completed"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "status",
    "audios"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "audios": [
    {
      "url": "https://file.runapi.ai/reference-audio.mp3"
    }
  ],
  "id": "tsk_reference_demo",
  "status": "completed"
}
09

客戶回呼：失敗

HTTP 200

POST callback_url

回應綱要
JSON 
{
  "properties": {
    "error": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "properties": {
            "code": {
              "type": "string"
            },
            "limit_cents": {
              "type": "integer"
            },
            "message": {
              "type": "string"
            },
            "reset_at": {
              "format": "date-time",
              "type": [
                "string",
                "null"
              ]
            },
            "used_cents": {
              "type": "integer"
            },
            "window": {
              "enum": [
                "1h",
                "1d",
                "7d",
                "daily",
                "weekly",
                "monthly",
                "lifetime"
              ],
              "type": "string"
            }
          },
          "required": [
            "code",
            "message"
          ],
          "type": "object",
          "unevaluatedProperties": false
        }
      ]
    },
    "id": {
      "type": "string"
    },
    "status": {
      "enum": [
        "failed"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "status",
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": {
    "code": "generation_failed",
    "message": "Task processing failed."
  },
  "id": "tsk_reference_demo",
  "status": "failed"
}
10

錯誤

HTTP 401

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Authentication required"
}
11

錯誤

HTTP 401

GET /api/v1/gemini_tts/text_to_speech/:id

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Authentication required"
}
12

錯誤

HTTP 400

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "oneOf": [
    {
      "properties": {
        "error": {
          "description": "人類可讀的錯誤訊息。",
          "type": "string"
        }
      },
      "required": [
        "error"
      ],
      "type": "object",
      "unevaluatedProperties": false
    },
    {
      "properties": {
        "error": {
          "description": "人類可讀的驗證摘要。",
          "type": "string"
        },
        "errors": {
          "additionalProperties": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "description": "以公開請求欄位為索引鍵的驗證訊息，每個欄位包含一組人類可讀的字串陣列。",
          "type": "object"
        }
      },
      "required": [
        "error",
        "errors"
      ],
      "type": "object",
      "unevaluatedProperties": false
    }
  ]
}

回應範例

JSON 
{
  "error": "model must be one of: gemini-2.5-pro-tts, gemini-3.1-flash-tts"
}
13

錯誤

HTTP 402

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Insufficient balance"
}
14

錯誤

HTTP 429

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "API key credit limit exceeded"
}
15

錯誤

HTTP 409

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "The request uses features that are not supported for the selected model"
}
16

錯誤

HTTP 429

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Rate limit reached. Please retry later."
}
17

錯誤

HTTP 503

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Service under maintenance, please try again later"
}
18

錯誤

HTTP 504

POST /api/v1/gemini_tts/text_to_speech

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "The request timed out"
}
19

錯誤

HTTP 404

GET /api/v1/gemini_tts/text_to_speech/:id

回應綱要
JSON 
{
  "properties": {
    "error": {
      "description": "人類可讀的錯誤訊息。",
      "type": "string"
    }
  },
  "required": [
    "error"
  ],
  "type": "object",
  "unevaluatedProperties": false
}

回應範例

JSON 
{
  "error": "Task with id 'tsk_reference_demo' not found"
}
20

產生的程式碼範例

直接使用 cURL，或為您的程式語言安裝 SDK。每個範例均會提交本參考中所示的已驗證請求。

安裝

Shell 
pip install runapi-gemini-tts
PYTHON 
import os
from runapi.gemini_tts import GeminiTtsClient

client = GeminiTtsClient(api_key=os.environ["RUNAPI_API_KEY"])
task = client.text_to_speech.create(
  model="gemini-2.5-pro-tts",
  temperature=0.8,
  scene="A quiet recording studio",
  sample_context="Natural conversational delivery",
  speakers=[{"speaker_id": "Speaker 1", "voice_name": "Fenrir", "audio_profile": "A calm host", "accent": "British (RP)", "style": "Newscaster", "pace": "Natural"}, {"speaker_id": "Speaker 2", "voice_name": "Puck", "accent": "American (Gen)", "style": "Empathetic", "pace": "Staccato"}],
  dialogue_turns=[{"speaker_id": "Speaker 1", "text": "Welcome to the show."}, {"speaker_id": "Speaker 2", "text": "Thanks for having me."}]
)