Gemini CLI vs OpenAI Codex CLI
Read from each vendor’s own pages last night, so it does not go stale the way a written comparison does.
Before you read on · Sunset since 18 June 2026
Gemini CLI has had an access tier withdrawn; check what is still available before choosing it.
Free consumer access ended 18 June 2026; users were directed to Google Antigravity. The tool still exists for API-key and paid use, so this is a withdrawn access tier rather than a shutdown — a distinction almost every ranked page gets wrong.
CLI agent
Gemini CLI
Google's open-source terminal agent. Consumer free tier withdrawn in June 2026.
Not read
CLI agent
OpenAI Codex CLI
OpenAI's open-source terminal coding agent, distributed through ChatGPT subscriptions.
Not read
Measured — counted from real repositories, nightlyAsserted — read from the vendor docs, dated
| Compared on | Gemini CLI | OpenAI Codex CLI |
|---|---|---|
| Asserted — what each vendor publishes about itself | ||
| Category | CLI agent | CLI agent |
| Vendor | OpenAI | |
| Status | Sunset | Active |
| How it charges | Usage | Subscription |
| Entry price | Not read | Not read |
| Plans | No named tier on Google's pricing page could be read with a price beside it. | No named tier on OpenAI's pricing page could be read with a price beside it. |
| Default model | google/gemini | openai/gpt-5.5 |
| Your own key | Yes | Yes |
| Source | Open source · Apache-2.0 | Open source · Apache-2.0 |
| Measured — counted on the last nightly run | ||
| Stars | 106.3K | 103.5K |
| Maintenance | 100/100 | 100/100 |
| Days since last push | 0 | 0 |
| Top model in it | not measured | OpenAI: GPT-5.5 · $11.25 |
| Its volume | not measured | 54B tokens |
What has changed on either of them
1 entry| What changed | Kind | Was, and is now | Confidence | Occurred |
|---|---|---|---|---|
| Gemini CLI free consumer access endedGemini CLI | Tier withdrawn | Sunset | high |
