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GitHub Copilot vs OpenAI Codex

This is the verified GitHub Copilot vs OpenAI Codex breakdown: GitHub Copilot (Multi-model IDE extension plus Copilot cloud agent (formerly 'coding agent'; cloud_agent) and Copilot CLI (terminal_agent). Billing moved from premium requests to GitHub AI Credits on 2026-06-01.) and OpenAI Codex (Coding agent across CLI (Apache-2.0), IDE extension, Codex Cloud (cloud_agent) and ChatGPT desktop app; usage shared with ChatGPT Work. The standalone Codex app merged into the ChatGPT desktop app on 2026-07-09.) are AI coding agents platforms, priced from $10/mo and $0 + your model API bill respectively. The bottom line, head-to-head facts, and true cost tiers follow.

AI coding agents platforms · 36 facts compared · all sourcedPricing verified Oct 2, 2026
Bottom line

OpenAI Codex takes four of seven use cases: Enterprise, Free Plans, Local Models and Open Source. OpenAI Codex lists a self-hosted or VPC option and SAML SSO with MFA on Business, where GitHub Copilot says it has no self-hosted option. The cheapest paid plan for OpenAI Codex is $8/mo. Its Codex CLI is licensed Apache-2.0 and lists providers from OpenAI and Azure OpenAI plus five more. GitHub Copilot wins Beginners, Terminal Workflows and VS Code, backed by checkpoints and rollback, codebase indexing and a wide set of surfaces. For buyers who value openness and deployment control, Codex comes out ahead.

Reviewed by vsref Editorialfacts verified Oct 2, 2026Methodology →

OpenAI Codex is our pick for most teams. Start there, or weigh the use-case verdicts below.

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Beginners
GitHub Copilot
WINNER
Enterprise
OpenAI Codex
WINNER
Free Plans
OpenAI Codex
WINNER
Local Models
OpenAI Codex
WINNER
Open Source
OpenAI Codex
WINNER
Terminal Workflows
GitHub Copilot
WINNER
VS Code
GitHub Copilot
WINNER

GitHub Copilot vs OpenAI Codex: head-to-head facts

FactGitHub Copilot logoGitHub CopilotOpenAI Codex logoOpenAI Codex
How usage is metered$ usage pool + per-tokenOct 2Time windows + per-tokenOct 2
What the free plan allowsCopilot Free: 2,000 code completions/monthOct 2Free $0: 'GPT-6 Luna at Standard speed in the desktop appOct 2
Cheapest paid plan (monthly)$10Oct 2$8Oct 2
Top individual plan$100Oct 2$500Oct 2
Usage included at entry tierPro: 1,000 base + 500 flex = 1,500 GitHub AI...Oct 2Plus ($20)Oct 2
Rate-limit windowmonthly credit allowanceOct 2per five-hour period + weekly limits may applyOct 2
Bring your own API keytrueOct 2trueOct 2
Models availableClaude Haiku 4.5, Opus 4.7 +20 moreOct 2GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna +6 moreOct 2
Pick the model per task✓ YesOct 2✓ YesOct 2
Runs local models✓ YesOct 2✓ YesOct 2
Where it runsIDE extensions, GitHub.com (Chat, agents panel) +7 moreOct 2ChatGPT desktop appOct 2
Autonomous multi-file edits✓ YesOct 2✓ YesOct 2
Runs terminal commands✓ YesOct 2✓ YesOct 2
Background / cloud agents✓ YesOct 2✓ YesOct 2
Opens PRs from issues✓ YesOct 2✓ YesOct 2
MCP support✓ YesOct 2✓ YesOct 2
Trains on your code?From 2026-04-24Oct 2BusinessOct 2
Self-hosted / VPC deployment✗ NoOct 2✓ YesOct 2
Licensen/aApache-2.0 (Codex CLI)Oct 2
Supported model providersn/aOpenAI (ChatGPT sign-in or API key), Azure OpenAI +5 moreOct 2
✓buyer-good  ·  ✗not available  ·  ◑gated or partial  ·  production cost ranges are our estimates, see our methodology.
Swipe → to compare both tools. Each value links its source and verified date.

GitHub Copilot vs OpenAI Codex pricing: true cost at 3 usage tiers

Real monthly cost at 3 developer profiles: hobbyist (~5 h/week), full-time developer (~25 h/week of daily agent use), team of 5. Most vendors do not publish how much usage a plan covers, so the full-time row spans the cheapest to the top individual plan unless the vendor publishes its own guidance for daily users. Bring-your-own-key and open-source agents show the model bill you pay the provider, never $0.
~5 h/week of agent useHobbyist
GitHub Copilot$10/mo
OpenAI CodexFree with your own key; plans $8-$500/mo
Side projects and evenings. Priced at each vendor's cheapest paid plan (annual billing where offered), the tier every vendor sells for light use.
~25 h/week, daily multi-file agent tasksFull-time developer
GitHub Copilot$10-$100/mo
OpenAI CodexFree with your own key; plans $8-$500/mo
Daily agent use. Most vendors do not publish how much usage a plan covers, so this shows the span from the cheapest to the top individual plan; where a vendor publishes its own guidance for daily agent users, that figure is used instead.
5 seatsTeam of 5
GitHub CopilotLOWEST$95/mo
OpenAI Codex$125/mo
Priced from each vendor's own team plan: per-seat prices x 5, flat team plans as published. A tool with no published team price shows that rather than a guess.

GitHub Copilot vs OpenAI Codex: verdicts by use case

Beginners → GitHub Copilot

OpenAI Codex has the lower entry price at $8/mo. GitHub Copilot costs $10/mo, but its Pro tier spells out 1,500 GitHub AI credits, while Codex only lists its entry usage as part of Plus ($20). Copilot also publishes checkpoints and rollback, an easy undo Codex does not list. Both have free plans: Copilot Free includes 2,000 code completions a month, and Codex Free offers GPT-6 Luna in the desktop app. Copilot also runs in IDE extensions, GitHub.com and seven more surfaces. A small price gap is outweighed by clearer usage and rollback.

Enterprise → OpenAI Codex

Neither vendor publishes a crisp training statement: GitHub Copilot's policy note reads "From 2026-04-24" and OpenAI Codex's reads "Business". The next deciding factor is deployment, and here they split: Codex lists a self-hosted or VPC option (vendor claimed), while Copilot says no. Codex also publishes SAML SSO and MFA on Business, which Copilot does not list. Both report SOC 2 and admin audit logs, and neither publishes a zero data retention option.

Free Plans → OpenAI Codex

For real agent work without paying, OpenAI Codex Free at $0 offers GPT-6 Luna at Standard speed in the desktop app, while GitHub Copilot Free is framed around 2,000 code completions a month. Both let you bring your own API key and both run local models, so either can keep working past the free allowance. When you are ready to pay, Codex's cheapest plan is $8/mo against Copilot's $10/mo. The agent-focused free tier and lower step up give Codex a small lead.

Local Models → OpenAI Codex

Both GitHub Copilot and OpenAI Codex say they run local models, so the decision moves to the supporting details. Codex lists its model providers, starting with OpenAI and Azure OpenAI plus five more, and its Codex CLI is licensed Apache-2.0, so the client you point at a local model can be inspected. Copilot publishes neither a provider list nor a license. Both support bringing your own API key.

Open Source → OpenAI Codex

The license is what matters most for teams that want to read or fork the agent. OpenAI Codex publishes an Apache-2.0 license for the Codex CLI, while GitHub Copilot publishes no open source license. Codex also lists supported providers from OpenAI and Azure OpenAI plus five more, and shows 127,600 GitHub stars. Both run local models, so that is not a differentiator.

Terminal Workflows → GitHub Copilot

Where the agent runs is the deciding factor for shell-first work. GitHub Copilot lists IDE extensions, GitHub.com with chat and an agents panel, and seven more surfaces, while OpenAI Codex's published surface is the ChatGPT desktop app. On capabilities the two are close: both run terminal commands (Copilot's claim is vendor stated), both offer background or cloud agents, both support MCP, and both read project rules files. Copilot's broader set of surfaces gives it the edge.

VS Code → GitHub Copilot

Both tools support VS Code: GitHub Copilot lists VS Code, Visual Studio, JetBrains IDEs, Eclipse and more, and OpenAI Codex lists VS Code, VS Code Insiders, Cursor and more. Both make autonomous multi-file edits. Copilot pulls ahead on reviewing and undoing work in the editor, publishing checkpoints and rollback plus codebase indexing, neither of which Codex lists. Copilot's entry tier also states 1,500 GitHub AI credits, while Codex only cites Plus ($20).

GitHub Copilot vs OpenAI Codex: common questions

Is GitHub Copilot cheaper than OpenAI Codex?+

It depends on the tier. OpenAI Codex has the cheaper entry plan at $8/mo, while GitHub Copilot's cheapest paid plan is $10/mo. For teams, GitHub Copilot is cheaper at $19/user/mo, and OpenAI Codex charges $25/user/mo. GitHub Copilot's top individual plan is $100/mo. OpenAI Codex tops out at $500/mo.

GitHub Copilot vs OpenAI Codex: which is better for beginners?+

GitHub Copilot is the better fit for beginners. The cheapest paid plan for OpenAI Codex is lower at $8/mo. GitHub Copilot costs $10/mo, but its Pro tier states 1,500 GitHub AI credits, and it offers checkpoints and rollback, which OpenAI Codex does not list. On the free plan side, GitHub Copilot includes 2,000 code completions a month, while OpenAI Codex offers GPT-6 Luna in the desktop app.

What does a team plan cost on GitHub Copilot vs OpenAI Codex?+

GitHub Copilot's team plan is $19/user/mo and OpenAI Codex's is $25/user/mo. Codex also offers an Enterprise plan through sales, while Copilot says it has no contact-sales Enterprise plan.

Is GitHub Copilot or OpenAI Codex better for enterprise deployment?+

OpenAI Codex lists a self-hosted or VPC option (vendor claimed) and SAML SSO with MFA on Business. GitHub Copilot says it has no self-hosted option, but offers data residency in the United States and European Union. Both report SOC 2 and admin audit logs.

How do overage charges compare for GitHub Copilot and OpenAI Codex?+

GitHub Copilot charges $0.01 per AI credit beyond the plan, on a monthly credit allowance. OpenAI Codex bills extra use through ChatGPT credits at per-1M-token rates, with limits per five-hour period and weekly limits that may apply.

Which has the more expensive top plan, GitHub Copilot or OpenAI Codex?+

OpenAI Codex's top individual plan is $500/mo, while GitHub Copilot's top individual plan is $100/mo.

Which models can I use in GitHub Copilot?+

GitHub Copilot lists models including Claude Haiku 4.5 and Opus 4.7 plus 20 more, and you can pick the model per task. It also supports bringing your own API key.

Is OpenAI Codex open source?+

The Codex CLI is licensed Apache-2.0, has 127,600 GitHub stars, and its last release was 0.160.0 on 2026-10-01.

Can GitHub Copilot open pull requests from issues?+

Yes. GitHub Copilot opens PRs from issues, runs background or cloud agents, and offers Copilot code review on PRs and in the IDE.

Best GitHub Copilot alternatives →Best OpenAI Codex alternatives →

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