LangSmith
AI Agent & LLM Observability Platform
VS
Tavus
Build AI humans
Detailed comparison
Criteria
LangSmith
Tavus
Pricing
Freemium
Freemium
Plans & pricing
Developer: Free, Team: $39/mo, Enterprise: Custom
Free: Free, Starter: $59/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2b
Platforms
Web
Api
API
Yes
Yes
Open Source
Proprietary
Proprietary
Integrations
Pagerduty
—
Categories
Data Science, Dev Tools
Video, Chatbots
Popularity
Very High
Very High
Description
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Tavus is a human computing company that allows businesses to build AI humans capable of seeing, hearing, and talking face to face in real time. It ena...
Pricing
LangSmith
Freemium
Tavus
Freemium
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Tavus
Free: Free, Starter: $59/mo, Enterprise: Custom
Free trial
LangSmith
No
Tavus
No
Audience
LangSmith
b2b
Tavus
b2b
Platforms
LangSmith
Web
Tavus
Api
API
LangSmith
Yes
Tavus
Yes
Open Source
LangSmith
Proprietary
Tavus
Proprietary
Integrations
LangSmith
Pagerduty
Tavus
—
Categories
LangSmith
Data Science, Dev Tools
Tavus
Video, Chatbots
Popularity
LangSmith
Very High
Tavus
Very High
Description
LangSmith
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Tavus
Tavus is a human computing company that allows businesses to build AI humans capable of seeing, hearing, and talking face to face in real time. It ena...
Features
LangSmith
Cost tracking
Online LLM-as-judge and code evals
Tool and agent trajectory monitoring
Webhook and Pagerduty alerts
Message threading for multi-turn chat interactions
Templates for error analysis
Tavus
Build AI humans
Real-time face-to-face interaction
Deploy custom video agents, digital twins, and AI companions
Support for 30+ languages
Real-time human rendering with emotional intelligence
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Tavus
- Real-time AI humans with emotional intelligence
- Custom video agents, digital twins, AI companions
- 30+ languages for face-to-face AI interaction
Other comparisons
FAQ: LangSmith vs Tavus
LangSmith: AI Agent & LLM Observability Platform. Tavus: Build AI humans. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Tavus is freemium.
The best choice between LangSmith and Tavus 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. Tavus offers: Build AI humans, Real-time face-to-face interaction, Deploy custom video agents, digital twins, and AI companions, Support for 30+ languages.
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.