A agentindex
Comparison

OpenAI Codex vs OpenCode

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

OpenAI Codex

OpenAI's open-source agentic coding CLI.

  • + Open-source CLI
  • + Sandboxed command execution
  • − OpenAI models only
  • − Newer, less battle-tested than incumbents

OpenCode

A model-agnostic, local-first coding agent TUI.

  • + Clean TUI with strong BYOK support
  • + Local-first and privacy-friendly
  • − Younger ecosystem
  • − Terminal-only
Spec OpenAI Codex OpenCode
Category coding-agent coding-agent
License Apache-2.0 MIT
Open source Yes Yes
Self-hostable No Yes
MCP support Yes Yes
Pricing usage free
Starting price Pay per token (OpenAI API) BYOK usage cost
Models gpt claude, gpt, gemini, local, byok
Languages multi typescript, go
GitHub stars 93.6k 178.4k
Last activity 2026-06-25 2026-06-25