OpenAI Codex vs OpenCode
Compare pricing, features, integrations, and use cases without juggling tabs. One canonical profile for each tool — researched side by side.
AI Agents
OpenAI Codex
OpenAI’s software-engineering agent in ChatGPT, the IDE, the terminal, and a desktop app.
AI Agents
OpenCode
Open-source coding agent for the terminal, IDE, and desktop, with bring-your-own models.
At a glance
Pricing model
freemium
free
Starting price
Included with ChatGPT
Free / open source
Rating
4.6 / 5
4.5 / 5
Category
AI Agents
AI Agents
Features
ChatGPT command center for parallel agents
IDE extension for VS Code, Cursor, and Devin Desktop
Terminal agent
Desktop app with worktrees and cloud environments
GitHub review comments and PR workflows
Open-source agent runtime
LSP-aware context
Parallel sessions on one project
Shareable session links
GitHub Copilot and ChatGPT login options
Local and third-party model routing
Integrations
ChatGPT
VS Code
Cursor
GitHub
JetBrains
GitHub Copilot
Claude
Gemini
Models.dev
Best for
Delegated coding tasks
Parallel agents on one repo
PR review and comment resolution
OpenAI-standardized engineering stacks
Self-hosted or air-gapped coding agents
Model-agnostic agent experiments
Teams that want inspectable source
OpenAI Codex pricing
ChatGPT plans
Included
- • Codex in ChatGPT
- • IDE extension credits on the plan
- • Terminal access with the same account
API key
Usage-based
- • Sign in with an API key
- • Confirm current rates
OpenCode pricing
Open source
$0
- • Terminal, IDE, and desktop
- • Bring your own model or provider
- • Optional Zen model access (see site)