OpenAI CodexvsGitHub Copilot

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

OpenAI Codex

Coding Assistants

Featured

OpenAI coding agent for CLI, IDE, web, desktop, and cloud workflows

Full review →Website ↗

GitHub Copilot

Coding Assistants

Featured

AI pair programmer that suggests code in your editor

Full review →Website ↗
FeatureOpenAI CodexGitHub Copilot
CategoryCoding AssistantsCoding Assistants
PricingIncluded with eligible ChatGPT plans; additional credits availableFree + Pro $10/mo
GitHub Stars
✓ More stars
85k
—
PlatformsmacOS, Windows, Linux, WebmacOS, Linux, Windows
Key Features
  • ✓ Terminal coding agent
  • ✓ IDE extension
  • ✓ Web and desktop app
  • ✓ Multi-agent workflows
  • ✓ Cloud environments
  • ✓ Worktrees
  • ✓ PR review
  • ✓ MCP and tool use
  • ✓ Code completion
  • ✓ Chat
  • ✓ Multi-file editing
  • ✓ CLI integration
  • ✓ IDE support
Pros
  • + Official OpenAI coding agent
  • + Works across CLI, IDE, web, desktop, and cloud
  • + Open-source CLI under Apache-2.0
  • + Strong fit for parallel agent workflows
  • + Designed for end-to-end software tasks and PR review
  • + Best IDE integration across editors
  • + Trained on massive code dataset
  • + Excellent for boilerplate and repetitive code
  • + Active development by GitHub/Microsoft
  • + Free for open-source contributors
Cons
  • − Usage limits vary by ChatGPT plan
  • − Cloud and ChatGPT surfaces are proprietary
  • − Autonomous code changes still require review
  • − Team controls depend on workspace plan
  • − $10/mo for individuals
  • − Can suggest incorrect or insecure code
  • − Privacy concerns with code telemetry
  • − Less effective for niche languages
Tags
codingagenticcliideopenaichatgptmulti-agent
codingcopilotgithubai-completion

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