OpenAI Codex alternatives

What OpenAI Codex does

Core: Agentic coding tool, Terminal agent (CLI), Background cloud agents.

Important: VS Code and JetBrains extensions (partly), Web and mobile access, Slack and issue triggers, AI pull request review, MCP tool connections, Rules, commands and subagents, Plan and spec mode, Team admin and analytics, Privacy and compliance (partly), Open source or self-hosted, Automated fixes (partly), AI test generation.

Also has: Codebase indexing (partly), AI-native code editor (partly), Bring your own API key, Built-in browser testing, Design to code (partly), Static code analysis (partly), IDE & pre-commit checks (partly), Multi-platform Git support (partly), Self-hosting & open source (partly).

Alternatives to OpenAI Codex at 1 developer, best match first

• GitHub Copilot: $10/mo AI credits beyond allotment billed as usage (Copilot Pro). It covers 98% of OpenAI Codex; missing or partial: Self-hosting & open source. Free plan: Copilot Free: 2,000 completions and 50 chat requests per month, auto model selection only. Last price hike: Jun 2026.
• Claude Code: $20/mo Usage shared with Claude chat; extra usage at API rates (Pro). It covers 96% of OpenAI Codex; missing or partial: Open source or self-hosted (partly), Bring your own API key (partly). Free plan: none. Last price hike: Mar 2026.
• Cursor: $8/mo Plus is Grok-only; 3rd-party models extra (Plus ($8/mo, Grok models only)). It covers 92% of OpenAI Codex; missing or partial: Open source or self-hosted, Bring your own API key (partly), Self-hosting & open source. Free plan: Free: limited agent and Chat requests and limited AI usage.. Last price hike: Jun 2025.

Other kinds of products that cover part of OpenAI Codex

• GitHub (Code hosting & CI): covers 81% of OpenAI Codex; missing or partial: Terminal agent (CLI) (partly), VS Code and JetBrains extensions, MCP tool connections (partly), Plan and spec mode (partly), Bring your own API key
• GitLab (Code hosting & CI): covers 76% of OpenAI Codex; missing or partial: Terminal agent (CLI) (partly), Web and mobile access (partly), Slack and issue triggers (partly), MCP tool connections (partly), Rules, commands and subagents (partly)
• Claude (AI assistants): covers 68% of OpenAI Codex; missing or partial: Terminal agent (CLI), VS Code and JetBrains extensions, Slack and issue triggers (partly), AI pull request review, Open source or self-hosted
• Replit (AI app builders): covers 56% of OpenAI Codex; missing or partial: Terminal agent (CLI), VS Code and JetBrains extensions, Slack and issue triggers, AI pull request review, MCP tool connections (partly)
• v0 (AI app builders): covers 51% of OpenAI Codex; missing or partial: Terminal agent (CLI), VS Code and JetBrains extensions, Slack and issue triggers, AI pull request review, MCP tool connections (partly)

Prices at every size

• OpenAI Codex: 1 developer $8/mo, the top individual plan $500/mo, a 10-developer team $250/mo (Go has limited Codex; full Codex starts at $20 Plus)
• GitHub Copilot: 1 developer $10/mo, the top individual plan $100/mo, a 10-developer team $190/mo (AI credits beyond allotment billed as usage)
• Claude Code: 1 developer $20/mo, the top individual plan $200/mo, a 10-developer team $250/mo (Usage shared with Claude chat; extra usage at API rates)
• Cursor: 1 developer $8/mo, the top individual plan $200/mo, a 10-developer team $300/mo (Plus is Grok-only; 3rd-party models extra)

Monthly list price in USD on monthly billing (annual-only plans divided by 12). Solo is the cheapest paid plan one developer can buy, Top is the most expensive individual tier, and Team of 10 is ten seats on the cheapest team plan with central billing and admin; pay-as-you-go model usage beyond what a plan includes is not counted.

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Everything about OpenAI Codex's own prices and price hikes: OpenAI Codex.