
AI Agent & LLM Observability Platform

The language learning app that gets you speaking
LangSmith: AI Agent & LLM Observability Platform. Speak: The language learning app that gets you speaking. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Speak is freemium.
The best choice between LangSmith and Speak 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.
LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts. Speak offers: AI-powered Conversational Practice, Learning Without Live Tutors, Proven Language Learning Method, Fluency Building.
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.