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235 tools · 33 stacks

AI tools are all over the place. This is the full landscape — 247 tools across 21 categories, mapped and connected. Ready to narrow it down? Build your stack →

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What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools competes with
OpenAI Codex CLI
vs
Gemini CLI

Choose OpenAI Codex CLI when…

  • •using OpenAI models and want a terminal coding agent
  • •prefer open-source with full control over the agent loop
  • •need to integrate with existing OpenAI API infrastructure

Choose Gemini CLI when…

  • •You want a free terminal AI agent with a 1M token context window
  • •You're already using Gemini and want CLI-level access
  • •You want an OSS Claude Code alternative backed by Google
Field
OpenAI Codex CLI
Gemini CLI
Category
Coding Assistants
Coding Assistants
Type
OSS
OSS
Free Tier
✗ No
✓ Yes
Plans
Pay-as-you-go: OpenAI API tokens
Free: Free (Gemini API limits)
Stars
⭐ 28,000
⭐ 50,000
Health
●90 — Active
●80 — Active
Trajectory
— not enough data
— not enough data
Synced
today
today

OpenAI Codex CLI

OpenAI Codex CLI is an open-source terminal agent that applies natural language instructions to your local codebase. Running in your terminal, it reads files, writes code, runs tests, and iterates until the task is complete — powered by OpenAI's o4-mini model.

Gemini CLI

Google's open-source terminal coding agent powered by Gemini 2.5 Pro. Features a 1M token context window, native MCP server support, and is free to use within Gemini API limits. A direct Claude Code and Aider competitor from Google.

OpenAI Codex CLI Website ↗GitHub ↗
Gemini CLI Website ↗GitHub ↗

Shared Connections (2)

Claude CodeAider

Only OpenAI Codex CLI (2)

WarpGemini CLI

Only Gemini CLI (2)

OpenAI Codex CLIGoogle Gemini API
See full comparison in Explore →