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GitHub Copilot vs OpenAI Codex
GitHub Copilot provides inline suggestions inside editors, while Codex offers multi-agent workflows and cloud execution.
GitHub CopilotAI pair programmer in your editor and on GitHub
OpenAI CodexOpenAI's coding agent for the terminal, IDE and cloudWhich to pick
Pick GitHub Copilot if you want…
- AI-driven code completion and agent workflows
- In-editor AI pair programmer
- Integrations with Visual Studio Code, Visual Studio or JetBrains IDEs (on GitHub Copilot's list, not OpenAI Codex's)
Pick OpenAI Codex if you want…
- Multi-agent coding workflows
- Integrations with ChatGPT account or Plugins (on OpenAI Codex's list, not GitHub Copilot's)
Side by side
- What it is
- GitHub Copilot:GitHub Copilot is an AI-powered pair programmer that offers code completions, chat assistance and autonomous agents across editors, CLI and GitHub.
- OpenAI Codex:OpenAI Codex is an AI coding agent that assists across terminal, IDE, and cloud for planning, building, refactoring, reviewing, and releasing code.
- Best for
- GitHub Copilot:AI-driven code completion and agent workflows
- OpenAI Codex:Multi-agent coding workflows
- Who it’s for
- GitHub Copilot:Individual developers, development teams and enterprises seeking AI-assisted coding.
- OpenAI Codex:Developers and engineering teams needing AI-assisted coding and code review.
- Pricing
- GitHub Copilot:Freemium
- OpenAI Codex:Freemium
- Plans
- GitHub Copilot:Free $0 per user / month
- OpenAI Codex:Plus $20 per month · Pro $100 per month · Business $20 per user / month
- Works with
- GitHub Copilot:Visual Studio Code, Visual Studio, JetBrains IDEs, Neovim, Xcode, Eclipse IDE, GitHub.com, GitHub CLI
- OpenAI Codex:ChatGPT account, Plugins
GitHub Copilot features
- Inline code suggestions. Provides context-aware code completions directly in the editor.
- Chat assistance. Offers natural-language explanations, code queries and documentation lookup.
- Multi-model selection. Lets users choose between speed-optimized, accurate or cost-effective LLMs.
- Cloud agents & autonomous tasks. Runs background agents (e.g., Claude, Codex) to plan, explore and execute work.
- Copilot Spaces knowledge sharing. Creates a shared source of truth with docs and repository context for teams.
- Enterprise governance. Provides audit logs, access controls and budget management from a single control plane.
OpenAI Codex features
- Parallel agent execution. Runs multiple coding agents simultaneously, using tools to verify work until requirements are met.
- Reusable cloud environments. Keeps tasks running in the cloud with per-repo environments that persist across devices.
- Automated PR reviews. Scans pull requests, surfaces findings, and answers questions to accelerate code review.
- Plugin ecosystem. Connects to external tools and adds specialized capabilities via plugins.
- Cross-platform access. Available in ChatGPT, IDE extensions, CLI, and web, all linked to a single account.
- Secure shared workspaces. Business plan offers admin controls and shared repositories for team collaboration.
GitHub Copilot vs OpenAI Codex FAQ
Is GitHub Copilot or OpenAI Codex free?+
GitHub Copilot has a free plan and paid plans. OpenAI Codex has a free plan; paid plans start at $20/month (Plus).
Do GitHub Copilot and OpenAI Codex integrate with the same tools?+
Their integration lists don't overlap: GitHub Copilot lists Visual Studio Code, Visual Studio, JetBrains IDEs, Neovim and 6 more; OpenAI Codex lists ChatGPT account and Plugins.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.