Alternatives

Products that do what Presenting CODEX-AI does

An AI code completion assistant powered by Gemini.

1. 1
   Codex by OpenAI▲955

   AI that writes code for you

   2021 · openai.com

2. 2
   Codex by OpenAI▲346

   A command center for working with agents

   Feb 2026 · openai.com

3. 3
   GPT-5 Codex▲358

   A version of GPT-5 better at agentic coding

   Sep 2025

4. 4
   CodeX-Editor▲125

   A web code editor with AI & multi-language support

   2025

5. 5
   Codex by ChatGPT▲401

   Cloud agent for parallel dev tasks, powered by Codex-1

   2025

6. 6
   CodeX▲124

   Build webapps in minutes for completely free

   2025

7. 7
   Parallel Code▲159

   Use Claude Code, Codex, and Gemini in parallel

   Mar 2026 · parallelcode.app

8. 8
   Gemini CLI▲224

   Code, research, and automate from your terminal

   2025

9. 9
   Codex Subagents▲306

   Parallel custom agents for complex tasks

   Mar 2026 · learn.chatgpt.com

10. 10
    Muse Code▲240

    Meta’s terminal agent for long-horizon coding

    Aug 2026 · research.meta.ai

11. 11
    Codex​​▲247

    Discuss and understand your code base from within your IDE

    2022

12. 12
    Gemini AI Side Panel▲421

    Supercharge productivity in your browser with Gemini AI

    2024

13. 13
    Gemini Canvas▲294

    Interact and collaborate with AI to create

    2025

14. 14
    Codex app for Windows▲145

    Codex now runs natively on Windows with secure sandbox

    Mar 2026 · learn.chatgpt.com

15. 15
    GPT‑5.3‑Codex‑Spark▲277

    An ultra-fast model for real-time coding in Codex

    Feb 2026 · openai.com

16. 16
    Agent Runners▲185

    Build and ship with Claude Code, Codex, Gemini in Netlify

    Oct 2025

17. 17
    CodeWords▲385

    Turn ideas into automations by chatting with AI

    Sep 2025

18. 18
    Promptly AI▲380

    No-code platform for generative AI apps and workflows

    2024

19. 19
    ShioriCode▲119

    Open-source alternative to Codex & Claude Code

    May 2026 · shiori.ai

20. 20
    Vibe Pocket▲135

    Run AI agents like Claude Code, Codex, Opencode on mobile

    Dec 2025 · vibepocket.com

21. 21MC
    Mysti – Claude, Codex, and Gemini debate your code, then synthesize▲216

    Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution. Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It's like pair…

    Dec 2025 · github.com

22. 22
    CLI Manager▲105

    One dashboard to run and organize multiple AI CLI agents

    Dec 2025 · solhun.com

23. 23
    Mozzie ▲80

    Codex Claude Gemini CLI parallel agents orchestration

    Mar 2026 · github.com

24. 24
    OpenCode Superapp▲128

    The power of Codex with local, self-hosted models and voice

    Jul 2026 · opencodesuper.app

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