{
  "schema": 1,
  "locale": "zh",
  "id": "heygen-voice-turbo-free-api",
  "name": "HeyGen Voice Turbo 语音合成 API 限时免费（0 美元 / 百万字符，免信用卡）",
  "vendor": "HeyGen",
  "tier": "fish",
  "region": "overseas",
  "offerType": "promo",
  "goals": [
    "api",
    "audio"
  ],
  "modelTags": [
    "other"
  ],
  "models": [
    "HeyGen Voice Turbo（heygen-voice-1-turbo-free）"
  ],
  "quota": "2026-11-30 前，HeyGen 语音合成 API 的 Voice Turbo Free 档价格为 0 美元 / 百万字符，免信用卡，请求里写 model 为 heygen-voice-1-turbo-free 即可，用公开的即时音色",
  "validity": "limited",
  "deadline": "2026-11-30",
  "trend": null,
  "addedDate": "2026-10-24",
  "lastVerified": "2026-10-24",
  "editorPick": false,
  "difficulty": "easy",
  "hasRef": false,
  "url": "https://lanmao.ai/go/heygen-voice-turbo-free-api",
  "valueUsdMonthly": null,
  "valueUsdOnce": null,
  "inviteeBonusUsd": null,
  "quotaDetail": "HeyGen 官方博客「HeyGen Voice Turbo Is Free for Developers」原文：「Free until November 30, 2026. $0 per million characters. No credit card. One-line switch.」调用示例：POST https://api.heygen.com/v3/models/audio/tts，请求头 X-Api-Key，body 中 model 填 heygen-voice-1-turbo-free。页内对比表：Turbo Free 价格「$0 until Nov 30」、速度「Best effort」、音色「Public and instant」、适合「Prototypes and testing」；付费 Turbo 为 4 美元 / 百万字符（快速、优先），HeyGen Voice 为 15 美元 / 百万字符（含专业训练音色）。页面写明 Turbo 与 HeyGen Voice 在 Artificial Analysis 文字转语音榜单（受控音色）排名第 1、第 2（截至 2026-10-20）。",
  "threshold": [
    "email"
  ],
  "notes": "免费档是限时促销，到 2026-11-30 为止，之后恢复收费（付费 Turbo 4 美元 / 百万字符），到期是否延期以官方页面为准。免费档速度为「尽力而为」，没有优先级，适合原型与测试，不建议承接线上高并发。只能用公开的即时音色，不含自己训练的专业音色。页面写明免费 API Key 和免信用卡，但注册流程（是否需要企业邮箱、是否限制地区、是否要求先开通 HeyGen 账号）未走完核实；官方文档里的具体速率限制未取到。本条是 API 免费，与站内已有的 HeyGen 网页端免费计划（heygen-free-plan）是两份不同的额度。",
  "sourceUrl": "https://www.heygen.com/blog/heygen-voice-turbo",
  "canonical": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api/",
  "alternates": {
    "html": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api/",
    "markdown": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api.md",
    "json": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api.json",
    "feed": "https://lanmao.ai/feed/zh.json",
    "languages": {
      "zh-CN": {
        "html": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/zh/o/heygen-voice-turbo-free-api.json"
      },
      "en": {
        "html": "https://lanmao.ai/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/o/heygen-voice-turbo-free-api.json"
      },
      "ja": {
        "html": "https://lanmao.ai/ja/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/ja/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/ja/o/heygen-voice-turbo-free-api.json"
      },
      "ko": {
        "html": "https://lanmao.ai/ko/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/ko/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/ko/o/heygen-voice-turbo-free-api.json"
      },
      "es": {
        "html": "https://lanmao.ai/es/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/es/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/es/o/heygen-voice-turbo-free-api.json"
      },
      "pt": {
        "html": "https://lanmao.ai/pt/o/heygen-voice-turbo-free-api/",
        "markdown": "https://lanmao.ai/pt/o/heygen-voice-turbo-free-api.md",
        "json": "https://lanmao.ai/pt/o/heygen-voice-turbo-free-api.json"
      }
    }
  },
  "citation": "来源：lanmao.ai，核实于 2026-10-24，https://lanmao.ai/zh/o/heygen-voice-turbo-free-api/"
}