OpenAI has released several updates to its Codex CLI tool, enhancing its integration with the GPT-5 model. The latest versions, 0.23 through 0.25, include a 50% increase in usage limits for ChatGPT Plus users, bug fixes, new features such as the addition of the /model command, and support for a "minimal" version of GPT-5. Users can access GPT-5 with high reasoning capabilities directly through Codex CLI, which is included in the ChatGPT subscription plan. While some users praise the improved performance and reasoning abilities of GPT-5 within Codex CLI, others have noted limitations in the CLI's usability for coding. OpenAI is actively developing the tool with rapid release cycles, encouraging users to try the updated Codex CLI by installing it via npm.