Continue your Atlas path← Code
Initial research 2026-09-21OpenAI

Codex

Inspect the documented capabilities, access conditions and sources for your task.

Initial research: 2026-09-21. Check current terms before choosing.

Updated

The facts

Version
CLI rust-v0.154.0 (mid-September 2026)
Price
Price not verified. Open the tool record for the available pricing sources.
API
✓Supported
Open weights
✕Not supported
Commercial use
yes
Agentic editing
✓Supported

Multi-file agentic editing; the Codex harness is now exposed directly through the Agents API

Source for Agentic editing (opens in a new tab)
Terminal use
✓Supported

CLI runs locally with configurable approval modes; 58.2% on Terminal-Bench 4.0 driving GPT-6 Astra — the top score, inside the margin of error against Claude Code

Source for Terminal use (opens in a new tab)
I D E integration
✓Supported

Available in the terminal, the IDE and the browser

Source for I D E integration (opens in a new tab)
Autonomous P Rs
✓Supported

Listed among the agents that take an issue through to an opened pull request

Source for Autonomous P Rs (opens in a new tab)

Sources

RELATED AI NEWS

Help Net Security2026-09-18

Plugin4Shell: Zero-Click RCE Hits Claude Code, Codex, Copilot and Gemini CLI (original report, opens in a new tab)

AIR Security researchers disclosed a flaw letting a plugin repository owner swap already-approved code past SHA-pinning checks with no user click, affecting four major coding agents; Anthropic patched in Claude Code 2.1.179 and OpenAI in Codex 0.146.0, while Microsoft shipped no Copilot fix and Google retired Gemini CLI uncorrected.

AnthropicOpenAIGitHubMicrosoftGoogleClaude CodeCodexGitHub CopilotGemini CLI
AI-generated summary. Open the headline to read the original report.

Beyond feature support

Quality evidence.

How well a model performs depends on the task, version, and settings.

We have not published a reviewed quality evaluation for these versions yet. Feature support and price do not establish output quality.

Try the same small task with each option. Check whether the result works, passes your tests, and can be maintained.

Published evaluations to exploreSWE-bench (opens in a new tab)

Check the exact version and test setup. Results on one task do not establish quality on another.

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