Codex CLI
Codex CLI is a runtime maintained by OpenAI124. Its source code is public14 under the Apache License 2.02.
Codex CLI is OpenAI's open-source coding agent that runs locally in a terminal, where it can inspect, edit, and run code in a local repository. The README points to separate Codex experiences for code editors, a desktop app, and Codex Web, OpenAI's cloud-based agent.16
- Repository: Repository (external site: github.com)
- Documentation: Documentation (external site: learn.chatgpt.com)
- License: LICENSE (external site: github.com)
- Release notes: Reviewed release (external site: github.com)
Availability and license
Overall availability
Source code and binaries are public. Using OpenAI's hosted models requires signing in with a ChatGPT plan or an OpenAI API key; the hosted models themselves are not open. A documented --oss mode connects to a local Ollama or LM Studio server instead.178
Availability is separate from permission: read the license before using or redistributing.
Component reuse rights
- weights
- Unknown — no complete fact-level rights review
- code
- Reviewed qualifying license recorded — check scope and conditions
- data
- Unknown — no complete fact-level rights review
- documentation
- Unknown — no complete fact-level rights review
No complete system-rights review is recorded for this release.
Public materials checklist
| Item | Status | Notes and evidence |
|---|---|---|
| Source codeIs the source code publicly readable? | Public | Public repository containing the agent client, not model weights. The contributing guide says external code contributions are not accepted.14 |
| DocumentationIs user documentation published? | Public | Public official documentation, including authentication and configuration guides.678 |
| InstallationAre installation instructions or packages publicly available? | Public | The README documents standalone installers for macOS and Linux (shell) and Windows (PowerShell), the npm package @openai/codex, Homebrew, and per-platform binaries on GitHub Releases.1 |
| Supported platformsAre supported operating systems or hardware documented? | Public | The README lists release binaries for macOS (Apple Silicon and x86_64) and Linux (x86_64 and arm64), and a PowerShell installer for Windows.1 |
| Release statusAre versioned releases published? | Public | Reviewed rust-v0.159.3 (0.159.3), marked Latest and published September 30, 2026. The repository also publishes frequent alpha pre-releases. This entry describes the project rather than one release.5 |
What it is useful for
Interactive and scripted coding work from a terminal, including code review and automation in scripts or CI. Codex CLI is open-source client code: by default it sends requests to OpenAI's hosted models, which are not open, using a ChatGPT plan sign-in or an API key billed through the OpenAI Platform.617
Run and use notes
- The configuration documentation says Codex can run against a local open-source provider such as Ollama or LM Studio when launched with --oss. The provider is chosen for one run with --local-provider or set as the default with oss_provider in the configuration file.8
Organization context
In the news
OpenAI releases Codex CLI 0.162.0 with managed Git worktree tools
On October 8, 2026 OpenAI published version 0.162.0 of its open-source Codex CLI on GitHub. The release notes add tools for creating and listing managed Git worktrees from trusted local projects when the worktrees feature is enabled, and add task pinning in the agent Command Center with the
pkey. They also say live web access and remote compaction can be configured for custom Responses-compatible model providers, and that a signed PowerShell installer is now published with Windows releases. USASI has not tested these changes.OpenAI releases Codex CLI 0.161.0 with GPT-6.1 Sol as the default model
On October 7, 2026 OpenAI published version 0.161.0 of its open-source Codex CLI on GitHub. The release notes say GPT-6.1 Sol is now the default model in the bundled and Amazon Bedrock catalogs, and that Amazon Bedrock supports multi-agent V2 and Ultra reasoning on compatible models. The notes also add a
/mcp login <name>command for signing in to MCP servers from an active terminal session, and make Daybreak opt-in through--enable cli_daybreak. USASI has not tested these changes.
U.S. eligibility
Eligible · basis: U.S.-governed project
Codex CLI is developed in OpenAI's GitHub organization. Its LICENSE and NOTICE files assign copyright to OpenAI, the README describes it as a coding agent from OpenAI, and the contributing guide says the project does not accept external code contributions. OpenAI Group PBC, a Delaware public benefit corporation, gives a San Francisco, California address in a February 2026 agreement filed with the SEC. See the openai organization record.12349
Sources
This listing is not an endorsement, a safety assessment, or a federal approval.
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Cite this page
APA style
USASI. (2026, October 1). Codex CLI. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/codex-cli/
BibTeX
@misc{usasi_codex_cli,
author = {{USASI}},
title = {Codex CLI},
year = {2026},
month = oct,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/codex-cli/}},
note = {United States of America Superintelligence. Last updated 2026-10-01}
}The date is when this page was last updated. Add the date you read it if your style needs one.
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