OpenCode gives teams an open-source, multi-provider terminal harness; Codex provides an integrated OpenAI agent across local, IDE, app, and managed cloud surfaces.
OpenCode may fit when model portability, local execution, or configurable agents and permissions outweigh managed cloud convenience.
Codex may fit when the team wants connected managed surfaces, cloud delegation, and OpenAI workspace administration.
Compare total operating cost: OpenCode adds provider selection and configuration work, while Codex can add plan and credit usage beyond included limits.
Workflow guidance is separated from official product facts and should be tested on representative repository work.
| Decision area | OpenCode | Codex |
|---|---|---|
| Control plane | Repository and user configuration around an open-source client. | Managed OpenAI product and workspace surfaces. |
| Model portability | Multiple cloud and local providers. | OpenAI model lineup within Codex. |
| Cloud delegation | Depends on user-configured host and workflow. | Managed cloud tasks are a product feature. |
| Permissions | Pattern-based tool and agent permissions. | Codex environment, approval, and workspace controls. |
| Cost model | Provider usage, optional services, or local hardware. | Plan access plus token-based credits where applicable. |
| Maintenance | Team owns more configuration and provider decisions. | Provider owns more of the integrated service lifecycle. |
Do not select an agent from subscription price or repository popularity alone.