codex alternatives

Tools that could take the place of codex, ranked by the stacks builders put them in rather than by stars alone.

Other agents in the runchr registry that do the work of codex — a tool somebody pairs with it ranks above a more popular stranger. Read the codex page or browse every agents.

  • hermes-agentAgentsused with it in 3 stacks261.3k

    Self-improving terminal agent with memory, skills, and multi-platform gateway.

  • opencodeAgentsused with it in 3 stacks225.1k

    Open source terminal AI coding agent with build and plan modes.

  • gemini-cliAgentsused with it in a stack108.8k

    Open-source Gemini agent that runs in your terminal for coding and automation.

  • ClineAgentsused with it in a stack71.4k

    An autonomous coding agent that lives in your editor.

  • oh-my-piAgentsused with it in a stack38.1k

    Terminal coding agent with IDE, LSP, and debugger integration.

  • DeepSeek-ReasonixAgentsused with it in a stack36.1k

    Terminal coding agent for complex software engineering tasks.

  • LongHorizon-HarnessAgentsused with it in a stack1.9k

    Long-running computer-use harness that keeps Claude Code, Codex, or OpenCode

  • ppt-masterAgentsused with it in a stack74.3k

    AI agent that turns documents or topics into native PowerPoint decks.

  • piAgentsdoes the same work120.5k

    Minimal extensible coding agent CLI with unified LLM API and TUI.

  • OpenHandsAgentsdoes the same work92.9k

    An open-source engineer agent that writes and runs its own code.

  • strixAgentsdoes the same work74.2k

    Autonomous AI pentesting agents that find and validate app vulnerabilities.

  • oh-my-openagentAgentsdoes the same work70.8k

    Multi-model coding agent orchestrator with graph engineering and memory.