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Best Codex CLI Alternatives

81 agents you can use instead of Codex CLI. Ranked by popularity, tag overlap, and live GitHub signals.

clicoding-agentopenaiterminalsandboxopen-source
C

Codex CLI

Reference

OpenAI's official CLI coding agent — 64K+ stars

70.7Ktoday392
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Top Alternatives to Codex CLI

G

Gemini CLI

Google's open-source AI agent for the terminal — 97K+ stars

OSSFree
Google
99.8Ktoday445
4 shared tags
G

Goose

Block's extensible AI agent for the terminal — 33K+ stars

OSSFree
Block
33.9Ktoday403
4 shared tags
A

Aider

AI pair programming in your terminal — 42K+ stars

OSSFree
Aider AI
42.6K2w ago170
3 shared tags
A

AgenticSeek

Fully local autonomous AI agent with zero API costs, powered by DeepSeek-R1

OSSFree
Fosowl
3 shared tags
A

AgentSeek

Fully local autonomous AI agent with web browsing, coding, and voice assistance

OSSFree
Fosowl
3 shared tags
O

OPENDEV

Terminal-native autonomous coding agent for long-horizon development tasks with safety controls

OSSFree
Research (Nghi D. Q. Bui)
3 shared tags
R

RepoLaunch

Automated repository testing agent for cross-language SWE dataset construction

OSSFree
Research Team (Li et al.)
3 shared tags
C

Cline

Autonomous AI coding agent in VS Code — 59K+ stars

OSSFree
Cline
59.7Ktoday285
2 shared tags
O

OpenHands

Open-source AI software agent platform, formerly OpenDevin

OSSFree
All Hands AI
70.3Ktoday460
2 shared tags
S

SWE-agent

Princeton's autonomous agent for resolving GitHub issues and software engineering benchmarks

OSSFree
Princeton NLP Group
18.9K2d ago92
2 shared tags
D

DomAgent

Domain-specific code generation using knowledge graphs and case-based reasoning

OSSFree
Shuai Wang
2 shared tags
E

EvoKernel

Self-evolving framework for NPU kernel synthesis without fine-tuning or large datasets

OSSFree
Research
2 shared tags

Compare directly

Codex CLI vs Gemini CLICodex CLI vs GooseCodex CLI vs AiderCodex CLI vs AgenticSeek