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  1. Home
  2. Alternatives
  3. Alternatives to OpenAI Codex CLI
OpenAI Codex CLI

Best Alternatives to OpenAI Codex CLI

AI Agents · 8 alternatives ranked of 78 in the category

Looking for alternatives to OpenAI Codex CLI? These are the ai agents tools that score highest on adoption, reviews, benchmarks, and public code, with what separates each one from OpenAI Codex CLI.

Actian logo
Actian

AI Agents· actian.com

Custom

Portable vector database for edge AI

Why recommended

Based on popular builder stacks until you save tools or publish a project.

API available

How each alternative differs from OpenAI Codex CLI

Ranked by adoption, review, benchmark, and repository signals. Each note below is drawn from the two products’ own catalog records, so a product with nothing to separate it from OpenAI Codex CLI carries no note.

  1. 1

    Actian

    Actian is not listed as open source, while OpenAI Codex CLI is, is custom-priced against OpenAI Codex CLI's open source model, and shows 28 recorded adoptions against OpenAI Codex CLI's 1.

  2. 2

    Replay.io

    Replay.io is not listed as open source, while OpenAI Codex CLI is, is custom-priced against OpenAI Codex CLI's open source model, and shows 25 recorded adoptions against OpenAI Codex CLI's 1.

  3. 3

    Guild.ai

    Guild.ai is not listed as open source, while OpenAI Codex CLI is, is custom-priced against OpenAI Codex CLI's open source model, and shows 22 recorded adoptions against OpenAI Codex CLI's 1.

  4. 7

    Hermes Agent

    Hermes Agent carries 203k GitHub stars to OpenAI Codex CLI's 95k.

  5. 8

    Open WebUI

Replay.io logo
Replay.io

AI Agents· replay.io

Custom

Drop-in QA for web apps

Why recommended

Based on popular builder stacks until you save tools or publish a project.

API available
Guild.ai logo
Guild.ai

AI Agents· guild.ai

Custom

The control plane for AI agents

Why recommended

Based on popular builder stacks until you save tools or publish a project.

API available
CrewAI logo
CrewAI

AI Agents· crewai.com

Open source

Open-source framework for multi-agent workflows and role-based agents.

Why recommended

Based on popular builder stacks until you save tools or publish a project.

Open source
ComfyUI logo
ComfyUI

AI Agents· comfy.org

Open source

The modular AI image and workflow backend for builders shipping node-based generation pipelines, custom diffusion apps, and visual automation.

Why recommended

Based on popular builder stacks until you save tools or publish a project.

119,089
Open source
Gemini CLI logo
Gemini CLI

AI Agents· github.com

Open source

Open-source terminal AI agent that brings Gemini-assisted coding and automation into developer shells.

Why recommended

Based on popular builder stacks until you save tools or publish a project.

105,670
Open source
Hermes Agent logo
Hermes Agent

AI Agents· hermes-agent.nousresearch.com

Open source

Open-source autonomous agent from Nous Research for coding and research workflows with provider integrations.

Why recommended

Based on popular builder stacks until you save tools or publish a project.

203,205
Open source
Open WebUI logo
Open WebUI

AI Agents· openwebui.com

Open source

Open-source self-hosted AI interface and app platform for model routing, local or hosted LLM workflows, and OpenRouter-compatible chat apps.

Why recommended

Based on popular builder stacks until you save tools or publish a project.

143,623
Open source

Open WebUI carries 144k GitHub stars to OpenAI Codex CLI's 95k.