OpenCode vs OpenAI Codex
Compare pricing, features, integrations, and use cases without juggling tabs. One canonical profile for each tool — researched side by side.
AI Agents
OpenCode
Open-source coding agent for the terminal, IDE, and desktop, with bring-your-own models.
AI Agents
OpenAI Codex
OpenAI’s software-engineering agent in ChatGPT, the IDE, the terminal, and a desktop app.
At a glance
Pricing model
free
freemium
Starting price
Free / open source
Included with ChatGPT
Rating
4.5 / 5
4.6 / 5
Category
AI Agents
AI Agents
Features
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
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
Integrations
GitHub Copilot
ChatGPT
Claude
Gemini
Models.dev
VS Code
Cursor
GitHub
JetBrains
Best for
Self-hosted or air-gapped coding agents
Model-agnostic agent experiments
Teams that want inspectable source
Delegated coding tasks
Parallel agents on one repo
PR review and comment resolution
OpenAI-standardized engineering stacks
OpenCode pricing
Open source
$0
- • Terminal, IDE, and desktop
- • Bring your own model or provider
- • Optional Zen model access (see site)
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