Codex CLI vs LangChain CLI

A detailed comparison of Codex CLI and LangChain CLI across 11 dimensions.

Codex CLI

OpenAI's open-source AI coding agent CLI

Price
BYOK (Bring Your Own Key)
GitHub Stars
100K+
Open Source
true
Models
GPT-4o, GPT-4.1, o-series (via API)
Max Context
128K tokens
Multi-file Edit
true
Git Integration
true
MCP Support
true
Sub-agents
false
Platforms
macOS, Linux
Released
2025
npm install -g @openai/codex

LangChain CLI

LLM application development framework CLI

Price
Free + LangSmith paid
GitHub Stars
142K+
Open Source
true
Models
Multi-model integration
Max Context
依模型而定
Multi-file Edit
false
Git Integration
false
MCP Support
false
Sub-agents
true
Platforms
macOS, Linux, Windows
Released
2022
pip install langchain-cli

Full Comparison

ToolPriceGitHub StarsOpen SourceModelsMax ContextMulti-file EditGit IntegrationMCP SupportSub-agents
Codex CLI🔓
OpenAI's open-source AI coding agent CLI
BYOK (Bring Your Own Key)100K+✓GPT-4o, GPT-4.1, o-series (via API)128K tokens✓✓✓—
LangChain CLI🔓
LLM application development framework CLI
Free + LangSmith paid142K+✓Multi-model integration依模型而定———✓

Quick Install

Codex CLInpm install -g @openai/codex
LangChain CLIpip install langchain-cli