Aider
AI pair programming in your terminal
VS
LangSmith
AI Agent & LLM Observability Platform
Detailed comparison
Criteria
Aider
LangSmith
Pricing
Free
Freemium
Plans & pricing
—
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
—
No
Audience
b2c
b2b
Platforms
—
Web
API
—
Yes
Open Source
—
Proprietary
Integrations
—
Pagerduty
Categories
Dev & Tech, accounting, Coding
Dev & Tech, information technology & services, Apps
Popularity
High
Very High
Description
Aider is an open-source command-line tool that lets you pair program with LLMs to edit code in your local git repository. It can start new projects, e...
LangSmith is a complete AI agent and LLM observability platform. It offers tracing and real-time monitoring to help developers debug agents, find fail...
Pricing
Aider
Free
LangSmith
Freemium
Plans & pricing
Aider
—
LangSmith
Developer: Free, Team: $39/mo, Enterprise: Custom
Free trial
Aider
—
LangSmith
No
Audience
Aider
b2c
LangSmith
b2b
Platforms
Aider
—
LangSmith
Web
API
Aider
—
LangSmith
Yes
Open Source
Aider
—
LangSmith
Proprietary
Integrations
Aider
—
LangSmith
Pagerduty
Categories
Aider
Dev & Tech, accounting, Coding
LangSmith
Dev & Tech, information technology & services, Apps
Popularity
Aider
High
LangSmith
Very High
Description
Aider
Aider is an open-source command-line tool that lets you pair program with LLMs to edit code in your local git repository. It can start new projects, e...
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...
Features
Aider
Terminal-based AI chat interface
Direct editing of local source files
Support for GPT-4o and Claude 3.5 Sonnet
Automatic git commits with auto-generated messages
Multi-file editing and repository map generation
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
Key differentiators
Aider
LangSmith
- Complete AI agent & LLM observability
- Real-time tracing, debugging & evals
- Cost, latency & trajectory monitoring
Other comparisons
FAQ: Aider vs LangSmith
Aider: AI pair programming in your terminal. LangSmith: AI Agent & LLM Observability Platform. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. Aider is free and LangSmith is freemium.
The best choice between Aider 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.
Aider is primarily designed for individuals, while LangSmith is built for individuals.
Aider offers: Terminal-based AI chat interface, Direct editing of local source files, Support for GPT-4o and Claude 3.5 Sonnet, Automatic git commits with auto-generated messages. 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.