LangSmith
AI Agent & LLM Observability Platform
VS
Rewind
Rewind Mac app has shut down and is no longer functional.
Detailed comparison
Criteria
LangSmith
Rewind
Pricing
Freemium
Freemium
Plans & pricing
Developer: Free, Team: $39/mo, Enterprise: Custom
Free: Free, Pro: $19/mo, Unlimited: $29/mo
Free trial
No
Yes
Audience
b2b
b2c
Platforms
Web
—
API
Yes
No
Open Source
Proprietary
Proprietary
Integrations
Pagerduty
—
Categories
Dev & Tech, information technology & services, Apps
Dev & Tech, Search
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...
Rewind was a personalized AI assistant for macOS that recorded and indexed everything users saw, said, or heard on their device, creating a 'perfect m...
Pricing
LangSmith
Freemium
Rewind
Freemium
Plans & pricing
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Rewind
Free: Free, Pro: $19/mo, Unlimited: $29/mo
Free trial
LangSmith
No
Rewind
Yes
Audience
LangSmith
b2b
Rewind
b2c
Platforms
LangSmith
Web
Rewind
—
API
LangSmith
Yes
Rewind
No
Open Source
LangSmith
Proprietary
Rewind
Proprietary
Integrations
LangSmith
Pagerduty
Rewind
—
Categories
LangSmith
Dev & Tech, information technology & services, Apps
Rewind
Dev & Tech, Search
Popularity
LangSmith
Very High
Rewind
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...
Rewind
Rewind was a personalized AI assistant for macOS that recorded and indexed everything users saw, said, or heard on their device, creating a 'perfect m...
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
Rewind
Automated Note-Taking & Meeting Summaries
Local Data Storage & Privacy
Personalized AI Assistant
Smart Search & Memory Augmentation
Work Recovery
Key differentiators
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Rewind
Other comparisons
FAQ: LangSmith vs Rewind
LangSmith: AI Agent & LLM Observability Platform. Rewind: Rewind Mac app has shut down and is no longer functional.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LangSmith is freemium and Rewind is freemium.
The best choice between LangSmith and Rewind 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.
LangSmith is primarily designed for individuals, while Rewind is built for individuals.
LangSmith offers: Cost tracking, Online LLM-as-judge and code evals, Tool and agent trajectory monitoring, Webhook and Pagerduty alerts. Rewind offers: Automated Note-Taking & Meeting Summaries, Local Data Storage & Privacy, Personalized AI Assistant, Smart Search & Memory Augmentation.
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.