Codex CLI vs Hermes Agent

A detailed comparison of Codex CLI and Hermes Agent 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

Hermes Agent

Nous Research's open-source AI agent framework

Price
Free (BYOK)
GitHub Stars
217K+
Open Source
true
Models
Multi-model (DeepSeek, Claude, GPT, etc.)
Max Context
依模型而定
Multi-file Edit
true
Git Integration
true
MCP Support
true
Sub-agents
true
Platforms
macOS, Linux
Released
2025
pip install hermes-agent

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✓✓✓—
Hermes Agent🔓
Nous Research's open-source AI agent framework
Free (BYOK)217K+✓Multi-model (DeepSeek, Claude, GPT, etc.)依模型而定✓✓✓✓

Quick Install

Codex CLInpm install -g @openai/codex
Hermes Agentpip install hermes-agent