Gradium: 专注于超低延迟实时语音 API，不过生态系统比 Gladia 小。 Gladia 记录了 232,451 月访问量，月度环比增长为 +6.4%，定价为免费增值，定价请咨询。Gradium 记录了 126,416 月访问量，增长率为 +128.7%，定价为免费增值，定价请咨询。
| 维度 / 指标 |  |  |
|---|---|---|
| 官方域名 | gladia.io | gradium.ai |
| 定价模式 | 免费增值，定价请咨询 | 免费增值，定价请咨询 |
| 月访问量 | 23.25万 (232,451) | 12.64万 (126,416) |
| 月度环比流量变化 | +1.39万 (+6.4%) | +7.12万 (+128.7%) |
| 主要市场与份额 | 🇧🇷 巴西 (22.1%) | 🇫🇷 法国 (26.5%) |
| 直接访问 / 月 | 12.85万 | 2.72万 |
| 用户评分 | 4.4 | 4.5 |
| 支持的平台 | 网站 | 网站 |
面向生产级语音产品的语音转文字与音频智能 API
通过 WebSocket 流式传输实现实时字幕，或通过 REST 提交文件进行批量转写，支持 MP3、WAV、FLAC、Opus 等主流格式。
覆盖 100 多种语言的自动语种检测，对重音敏感，并支持同一句话中在多种语言间切换的语码转换场景。
说话人分离、命名实体识别、PII 脱敏、情感分析与摘要，全部按需启用、按需计费。
把转写结果直接送入大语言模型，可使用 Gladia 托管模型或自带模型（BYOM），用于生成摘要与结构化输出。
首音频低至 50 毫秒的实时语音 AI 接口
文本转语音、语音转文本与实时语音到语音翻译首音频约 50 毫秒，专为对话式智能体而优化，而非批处理场景。
可用短样本快速克隆音色，也可选择生产级专业克隆，或仅凭文字描述生成全新声音。
WebSocket 流式传输、Python 与 Rust SDK、自定义词表、语义化 VAD 和语码切换，让智能体开发者易于集成。
Phonon 是 Gradium 开放可用的 TTS 模型，可端侧运行，适用于离线或隐私敏感部署。
专项更强Provides Whisper via API for robust speech-to-text, but lacks specialized real-time streaming audio intelligence pipelines.
Offers cost-effective batch transcription APIs powered by distributed cloud hardware rather than dedicated streaming infrastructure.
Offers cost-effective batch transcription APIs powered by distributed cloud hardware rather than dedicated streaming infrastructure.
Noiz AI is a voice AI platform that turns text into lifelike speech, clones voices from short samples, and lets you design new voices by describing the tone and emotion you want. It supports emotional text-to-speech, multilingual dubbing and translation for video, a browsable voice library, and developer-ready APIs for building speech into your own products.
Noiz AI is a voice AI platform that turns text into lifelike speech, clones voices from short samples, and lets you design new voices by describing the tone and emotion you want. It supports emotional text-to-speech, multilingual dubbing and translation for video, a browsable voice library, and developer-ready APIs for building speech into your own products.
Soniox is a speech AI platform offering real-time speech-to-text, expressive text-to-speech with voice cloning, and real-time speech translation in 60+ languages through one unified API, built for voice agents, wearables, dictation, and live captions.
Delivers real-time speech-to-text with emotional intelligence detection, though on a newer platform.
Delivers real-time speech-to-text with emotional intelligence detection, though on a newer platform.
