GitHub Copilot vs OpenAI Codex

GitHub Copilot

Still the least disruptive way to put an assistant in front of a whole engineering org, but the credit meter means the $10 tier is no longer a flat-rate promise once anyone starts using agents seriously.

Pros

• +Broadest IDE coverage of any assistant: VS Code, Visual Studio, JetBrains, Neovim, Xcode
• +Free tier is real and needs no card, which makes org-wide trials trivial
• +Unlimited completions on every paid tier, so the meter only touches the expensive work

Cons

• −Four individual tiers from $10 to $100 make it hard to predict what a team actually costs
• −Credits are consumed by premium models at very different rates, so budgeting is guesswork
• −IP indemnity is Business-and-up only, which is often the deciding factor for enterprises

OpenAI Codex

Codex is the obvious pick if you already pay for ChatGPT and want an agent that can work in your terminal or off in a cloud sandbox without a second subscription. It is less compelling if you want a polished editor-native experience or need predictable monthly spend at heavy usage.

Pros

• +The command-line agent is open source under Apache-2.0
• +Free and Go tiers let you try it before paying for a bigger plan
• +Same agent is reachable from terminal, IDE extension, desktop app and cloud tasks
• +Can sign in with a ChatGPT plan or an API key, whichever billing suits you

Cons

• −Usage limits on subscription plans vary by model, task and local versus cloud runs, so capacity is hard to predict
• −Top-tier usage requires the higher Pro plans, which start at $100/month
• −Surfaces and plan names change often, so docs and pricing pages move around

Is GitHub Copilot cheaper than OpenAI Codex?

On published entry prices, OpenAI Codex starts lower — $8/mo against $10/mo for GitHub Copilot. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does GitHub Copilot or OpenAI Codex have a free tier?

Both: GitHub Copilot has a free tier, and OpenAI Codex has a free tier.

Which has a public API, GitHub Copilot or OpenAI Codex?

OpenAI Codex ships a public API, as of our last verification. A public API for GitHub Copilot is not confirmed by us — check its developer docs before you plan an integration.