Software Alternatives, Accelerators & Startups

opencode VS OpenAI Codex CLI

Compare opencode VS OpenAI Codex CLI and see what are their differences

opencode logo opencode

The AI coding agent, built for the terminal.

OpenAI Codex CLI logo OpenAI Codex CLI

Frontier reasoning in the terminal
Not present
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opencode features and specs

No features have been listed yet.

OpenAI Codex CLI features and specs

  • Efficiency
    Codex CLI allows developers to generate code snippets quickly, improving productivity and reducing the time spent on manual coding tasks.
  • Ease of Use
    With natural language processing capabilities, Codex CLI allows users to interact with the tool using simple commands, making it accessible even for those with limited programming knowledge.
  • Integration
    Codex CLI can be integrated into various development environments, allowing seamless transition between AI-assisted coding and traditional coding workflows.
  • Iterative Feedback
    The CLI provides immediate feedback on code input, which helps developers quickly understand and iterate on their implementations.
  • Versatility
    Codex CLI supports a wide range of programming languages and paradigms, making it useful in diverse coding scenarios.

Possible disadvantages of OpenAI Codex CLI

  • Accuracy Limitations
    The generated code may not always be perfectly accurate or optimized, requiring manual review and adjustments by experienced developers.
  • Dependency on Internet
    Since Codex CLI relies on online resources to function, its usability can be affected by internet connectivity issues.
  • Learning Curve
    While designed for simplicity, there is still a learning curve associated with understanding the limitations and best use cases for Codex CLI.
  • Ethical Concerns
    Relying on AI for code generation could raise concerns about the originality of code, intellectual property rights, and potential biases in the training data.
  • Cost
    Depending on OpenAI's pricing model, using Codex CLI might involve costs that can accumulate, especially for large-scale or long-term projects.

opencode videos

OpenCode: FASTEST AI Coder + Opensource! BYE Gemini CLI & ClaudeCode!

More videos:

  • Review - OpenCode: The ULTIMATE AI Coding Agent (By SST)
  • Review - FREE OpenCode SST Beats Google Gemini CLI, Claude Code, & Codex?! Open Source AI Coding CLI

OpenAI Codex CLI videos

OpenAI Codex CLI

More videos:

  • Review - My Honest Review of OpenAI Codex CLI - Is It Worth It?

Category Popularity

0-100% (relative to opencode and OpenAI Codex CLI)
AI
51 51%
49% 49
Developer Tools
48 48%
52% 52
Coding
100 100%
0% 0
Text Editors
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, OpenAI Codex CLI should be more popular than opencode. It has been mentiond 15 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

opencode mentions (8)

  • Opencode, an AI coding agent, built for the terminal.
    Opencode is the AI coding agent built for the terminal. It has the following features:. - Source: dev.to / 5 days ago
  • opencode context manager
    I have created a CLI tool named "occtx" for switching between different opencode configurations. It supports both global and project level. - Source: dev.to / 18 days ago
  • Opencode + Grok Code Fast 1: A Powerful Free Combo for Terminal-Based AI Coding
    Opencode is an open-source AI coding agent designed for terminal enthusiasts. Unlike proprietary alternatives, Opencode offers:. - Source: dev.to / 23 days ago
  • Seven Hours, Zero Internet, and Local AI Coding at 40,000 Feet
    Then, with the quest for a local LLM, came the real trial and error. I tried Devstral from Mistral, Qwen3, with Crush, OpenCode and Ollama-code. After several failed attempts, gpt-oss was actually the only one I was able to make work, and only with OpenCode1. It's not that I did extensive research to compare solutions โ€“ this was purely what I could get functioning in the time I had. - Source: dev.to / about 1 month ago
  • Show HN: TDD-Guard โ€“ Test-Driven Development for Claude Code
    Yes, it is: https://opencode.ai/ You'd get more traction if you were somewhat agent agnostic, so you could support Codex, Opencode, Gemini CLI, etc. - Source: Hacker News / about 1 month ago
View more

OpenAI Codex CLI mentions (15)

  • Building a Rust API with Claude Sonnet 4.5
    Sonnet has proven itself to be very powerful and capable of handling complex tasks, but lately the community were claiming that Claude is slowly getting worse and it's not as good as it first was. This is especially after OpenAI released their leading coding model Codex model for their open source Codex CLI. - Source: dev.to / 3 days ago
  • No โ€œresumeโ€ in Codex CLI, so I built one: quickly โ€œcontinueโ€ with `codex-history-list`
    Codex CLI is an AI coding agent that runs in your terminal, but thereโ€™s still no official โ€œresumeโ€ feature. - Source: dev.to / about 1 month ago
  • Codex CLI: Running GPT-OSS and Local Coding Models with Ollama, LM Studio, and MLX
    This file allows you to configure providers and create profiles for different models. Some options arenโ€™t fully documented yet, but you can explore the Codex source code for details. You can also configure MCP servers here. - Source: dev.to / about 1 month ago
  • GPT-5 for Developers
    You are looking for Codex CLI [0]. 0 - https://github.com/openai/codex. - Source: Hacker News / about 2 months ago
  • OpenAI Open Models
    Inference in Python uses harmony [1] (for request and response format) which is written in Rust with Python bindings. Another OpenAI's Rust libraries is tiktoken [2], used for all tokenization and detokenization. OpenAI Codex [3] is also written in Rust. It looks like OpenAI is increasingly adopting Rust (at least for inference). [1] https://github.com/openai/harmony [2] https://github.com/openai/tiktoken [3]... - Source: Hacker News / about 2 months ago
View more

What are some alternatives?

When comparing opencode and OpenAI Codex CLI, you can also consider the following products

Void Editor - Void is an open source Cursor alternative. Full privacy. Fully-featured.

Zed - Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Claude Code - Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebaseโ€”no more context switching, just breakthrough results.

Awesome ChatGPT Prompts - Game Genie for ChatGPT

Windsurf Editor - Tomorrow's editor, today. Windsurf Editor is the first AI agent-powered IDE that keeps developers in the flow. Available today on Mac, Windows, and Linux.

DeepWiki by Congnition - Understand Any GitHub Repo with AI Wikis