Tunk.ai 记录了 0 月访问量，月度环比增长为 -100%，定价为免费试用，定价请咨询。Vapi 记录了 662,301 月访问量，增长率为 -11.4%，定价为免费增值。
面向生产级通话自动化的语音 AI 智能体与实时语音转文字
用自然语言描述智能体，平台即自动配置语音、提示词、知识和通话流程；随后测试、微调并部署到电话线、应用或 API。
流式转写在对方仍在讲话时即返回文本，通过 API 或内置 playground 支持数十种语言与口音。
把自有接口交给智能体，使其能在通话中预约、查询和更新记录，并把结果写回 Salesforce、HubSpot 或 Zoho。
接入 Twilio 或 Plivo，将活动指向联系人名单，让智能体处理每一通电话，你只需管理队列。
通过 API 构建、测试并部署生产级语音 AI 智能体
通过一个 API 配置语音识别、大模型推理层和语音合成，无需分别对接多家供应商。
平台处理实时音频流、打断处理和通话状态，让对话自然且响应迅速。
可申请 Vapi 号码，也可接入 Twilio、Vonage 或 Telnyx，同一智能体支持呼入与呼出。
上线前模拟通话，上线后跟踪每次通话的转写、效果指标与合规信号。
专项更强Provides raw frontier language models and real-time multimodal capabilities, requiring custom scaffolding compared to Vapi's voice workflows.
专项更强Offers developer access to Gemini's powerful multimodal APIs, but lacks out-of-the-box telephony voice agent pipelines.
专项更强Offers developer access to Gemini's powerful multimodal APIs, but lacks out-of-the-box telephony voice agent pipelines.
专项更强Provides enterprise-grade speech-to-text and audio intelligence APIs, but lacks turnkey conversational voice agent telephony orchestration.
专项更强Provides enterprise-grade speech-to-text and audio intelligence APIs, but lacks turnkey conversational voice agent telephony orchestration.
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.
Enterprise voice AI platform specializing in high-volume outbound and inbound phone calls with robust telephony integrations.
VideoSDK is a developer platform for embedding real-time audio and video calling, interactive live streaming, and AI voice agents into web and mobile apps. It ships cross-platform client SDKs (JavaScript, React, React Native, Flutter, iOS, Android) plus server-side helpers, telephony over SIP, and transcription services, all billed on pay-as-you-go participant-minute pricing with a global edge network.
VideoSDK is a developer platform for embedding real-time audio and video calling, interactive live streaming, and AI voice agents into web and mobile apps. It ships cross-platform client SDKs (JavaScript, React, React Native, Flutter, iOS, Android) plus server-side helpers, telephony over SIP, and transcription services, all billed on pay-as-you-go participant-minute pricing with a global edge network.
