Enterprise Voice AI: STT, TTS & Agent APIs.

AI Agent & LLM Observability Platform
Deepgram: Enterprise Voice AI: STT, TTS & Agent APIs.. LangSmith: AI Agent & LLM Observability Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Deepgram is freemium and LangSmith is freemium.
The best choice between Deepgram and LangSmith depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Both are primarily designed for individuals. The choice depends on which specific features you need.
Deepgram offers: Speech-to-Text (STT) API, Text-to-Speech (TTS) API, Voice Agent APIs, Real-time & Accurate AI. LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts.
Based on our data, LangSmith currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.