CodeAgentChart

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Claude Code vs OpenAI Codex CLI

Side-by-side facts from official pages, checked 2026-10-12. We do not pick a winner; use the "Best for" row and your own needs.

Claude Code
AnthropicOpenAI Codex CLI
OpenAI

Pricing tiers

Claude CodeIncluded in paid Claude plans: Pro $20/mo billed monthly ($17/mo billed annually, $200 up front); Max from $100/mo (Max 5x / Max 20x); Team and Enterprise ($20/seat/mo + usage at API rates, billed annually). Can also use pay-as-you-go API credits via a Console account.

Source: claude.com/pricing · Checked 2026-10-12

OpenAI Codex CLIIncluded in ChatGPT plans: Free $0, Go $8/mo, Plus $20/mo, Pro $100, $200 or $500/mo; Business, Edu and Enterprise also include it. API-key use is billed at API pricing.

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Free tier

Claude CodeNo. The Free Claude plan does not include Claude Code (pricing table: Claude Code – Free: No).

Source: claude.com/pricing · Checked 2026-10-12

OpenAI Codex CLIYes. Free plan: GPT-6 Luna at Standard speed in the desktop app, subject to rollout. Plus lists Codex in the CLI; the CLI is also usable with an API key. A fixed Free-plan message limit is not published.

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Models

Claude CodeClaude models: Opus, Sonnet, Haiku on Pro and up; Fable via usage credits or a share of weekly limits depending on plan. Context window up to 1M (varies by model).

Source: claude.com/pricing · Checked 2026-10-12

OpenAI Codex CLIGPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-6 Astra (plus GPT-5.6 family, GPT-5.5 retiring Oct 14, 2026). With an API key, the models available to that key.

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Local vs cloud

Claude CodeBoth: local CLI, IDE extensions and desktop app work on your files; web sessions and Routines run in the cloud. Models are hosted by Anthropic or supported third-party providers.

Source: code.claude.com/docs/en/overview · Checked 2026-10-12

OpenAI Codex CLIBoth: local CLI/IDE/desktop chats plus Codex cloud tasks (cloud features not available with API-key auth).

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Platforms

Claude CodeTerminal CLI (macOS, Linux, WSL, Windows), VS Code and Cursor extension, JetBrains plugin, desktop app (macOS, Windows; Linux beta on Ubuntu/Debian), web at claude.ai/code, iOS/Android Claude app.

Source: code.claude.com/docs/en/overview · Checked 2026-10-12

OpenAI Codex CLICLI, IDE extension, ChatGPT desktop app, web, iOS (Plus and up).

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Key features

Claude Code
  • Edits files, runs commands, creates commits and pull requests
  • MCP connections
  • CLAUDE.md / AGENTS.md instructions, skills, hooks
  • Parallel agents and Agent SDK
  • Scheduled Routines in the cloud
  • GitHub Actions / GitLab CI/CD automation

Source: code.claude.com/docs/en/overview · Checked 2026-10-12

OpenAI Codex CLI
  • Local code review with /review
  • Sandboxing and permission controls
  • Worktrees and built-in Git tools
  • AGENTS.md, skills, plugins, MCP
  • Subagents and custom agents
  • GitHub PR delegation and automatic reviews (cloud)
  • codex exec / SDK for scripting and CI

Source: developers.openai.com/codex/pricing · Checked 2026-10-12

Best for

Claude CodeDevelopers already on a paid Claude plan who want one agent across terminal, IDE, desktop and web.

Source: Editorial summary of the sourced facts · Checked 2026-10-12

OpenAI Codex CLIChatGPT subscribers who want a terminal agent plus cloud tasks and GitHub review in one plan.

Source: Editorial summary of the sourced facts · Checked 2026-10-12

More comparisons

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