- Entry price
- Not yet verified
- Free tier
- No
- Logged activity · 90d
- 17/100
Terminal agent vs terminal agent
- Entry price
- Not yet verified
- Free tier
- Not yet verified
- Logged activity · 90d
- 71/100
Gemini CLI vs OpenAI Codex
At a glance
Verified values · no winner is picked| Dimension | Gemini CLI | OpenAI Codex |
|---|---|---|
| Entry price | Not yet verified | Not yet verified |
| Free tier | No | Not yet verified |
| Open source | Yes | Yes |
| Self-hosting | Not yet verified | Not yet verified |
| Enterprise (SSO + offering) | Not yet verified | Not yet verified |
Where they differ
1developers.googleblog.com
developers.googleblog.com (May 19, 2026): "If your organization uses Gemini CLI or our IDE extensions via a Gemini Code Assist Standard or Enterprise license … your access remains unchanged." The README documents Gemini API key and Vertex AI authentication.
https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/ ↗github.com
README: "We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan." "You can also use Codex with an API key".
https://github.com/openai/codex ↗Pricing face-off
USD list price · monthly billingNot yet verified for one or both
5github.com
README: "Run the following on Mac or Linux to install Codex CLI" and "Run the following on Windows to install Codex CLI".
https://github.com/openai/codex ↗github.com
README: "If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE."
https://github.com/openai/codex ↗developers.googleblog.com
developers.googleblog.com (May 19, 2026): "On June 18, 2026, Gemini CLI and Gemini Code Assist IDE extensions will stop serving requests for Google AI Pro and Ultra, as well as those using it free of charge". The release notes banner confirms unpaid-tier users moved to Antigravity CLI.
https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/ ↗geminicli.com
geminicli.com/plans, Vertex AI: "Enterprise security & compliance", "Google Cloud terms of service", "SLA and regional data residency".
https://geminicli.com/plans/ ↗References
Links — shown, never counted as differencesgeminicli.com
README: "Learn all about Gemini CLI in our documentation" (geminicli.com/docs).
https://geminicli.com/docs/ ↗github.com
README links "Codex Documentation" to developers.openai.com/codex.
https://github.com/openai/codex ↗geminicli.com
Gemini CLI release notes, linked as Changelog from geminicli.com.
https://geminicli.com/docs/changelogs/ ↗github.com
Codex release notes are published as GitHub releases of openai/codex.
https://github.com/openai/codex/releases ↗github.com
Google's public repository for Gemini CLI.
https://github.com/google-gemini/gemini-cli ↗github.com
OpenAI's public repository for the Codex CLI.
https://github.com/openai/codex ↗Recent record
Each side’s own record · not a score| Reading | Gemini CLI | OpenAI Codex |
|---|---|---|
| Verified changes | 0 in 30 days · 1 in 90 days · Coding agents median 0.5 | 3 in 30 days · 5 in 90 days · Coding agents median 0.5 |
| Last verified change | 23 Sept 2026 · 44 days ago | 26 Oct 2026 · 11 days ago |
| Activity · 90 days | 17 · below the Coding agents median of 52.5 | 71 · above the Coding agents median of 52.5 |
| Latest list-price move | No verified price | No verified price |
| Pricing on record | No verified price | No verified price |
| Comparable facts | 4 of 7 verified | 4 of 7 verified |
Gemini CLI · latest 3
- Release
Gemini CLI v0.61 hardens against indirect prompt injection
Core security hardening prevents indirect prompt injection via build file modifications and untrusted flags, and hardens filesystem boundaries.
github.com
ObservedHigh confidencePublished 23 Sept 2026Gemini CLI — GitHub releaseshttps://github.com/google-gemini/gemini-cli/releases/tag/v0.61.0 ↗ - Availability
Gemini CLI stops serving free and Google AI Pro/Ultra users
Gemini CLI and the Gemini Code Assist IDE extensions stop serving requests for Google AI Pro and Ultra and free-of-charge users; organizations on Code Assist Standard or Enterprise keep access.
developers.googleblog.com
ObservedHigh confidencePublished 18 Jun 2026Google for Developers blog — transitioning Gemini CLI to Antigravity CLIhttps://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/ ↗ - Availability
Google announces Gemini CLI transition to Antigravity CLI
Google said Gemini CLI and Code Assist IDE extensions would stop serving Google AI Pro, Ultra and free individual users on June 18, 2026; enterprise licenses unaffected.
developers.googleblog.com
ObservedHigh confidencePublished 19 May 2026Google Developers Bloghttps://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli ↗
OpenAI Codex · latest 3
- Release
GPT-6.1 Terra becomes available in Codex
GPT-6.1 Terra, a fast model with image understanding and computer use, becomes available in Codex and ChatGPT Work on Plus, Pro, Business, Enterprise and Edu plans.
developers.openai.com
ObservedHigh confidencePublished 26 Oct 2026OpenAI Codex — changeloghttps://developers.openai.com/codex/changelog ↗ - Availability
GPT-5.5 retires from Codex for ChatGPT sign-ins
GPT-5.5 is removed from Codex for users signed in with ChatGPT; API-key sessions and the OpenAI API are unaffected, and users are pointed to GPT-6.1 Sol.
developers.openai.com
ObservedHigh confidencePublished 14 Oct 2026OpenAI Codex — changeloghttps://developers.openai.com/codex/changelog ↗ - Release
GPT-6.1 Sol Ultrafast arrives in Codex for Pro $500 and eligible Enterprise and Edu
An Ultrafast mode speeds up GPT-6.1 Sol token generation in Codex, limited to the Pro $500 plan and eligible Enterprise and Edu plans (off by default for Enterprise).
developers.openai.com
ObservedHigh confidencePublished 8 Oct 2026OpenAI Codex — changeloghttps://developers.openai.com/codex/changelog ↗