Introducing apps in ChatGPT and the new Apps SDKProductOct 6, 2025
Overview
OpenAI has announced the general availability of Codex, a powerful coding assistant, along with three new features aimed at enhancing its utility for engineering teams. These features include a Slack integration, the Codex SDK for embedding capabilities into workflows, and new admin tools for better management and analytics.
What You'll Learn
1
How to integrate Codex into your Slack channels for task delegation
2
How to utilize the Codex SDK in your engineering workflows
3
Why using Codex can significantly speed up code reviews
Prerequisites & Requirements
- Familiarity with coding practices and tools
- Access to Slack and ChatGPT account
Key Questions Answered
What new features are included in the general availability of Codex?
The general availability of Codex includes a new Slack integration for task delegation, the Codex SDK for embedding capabilities into workflows, and new admin tools for enhanced monitoring and control. These features aim to improve collaboration and efficiency for engineering teams.
How has Codex impacted code review processes in companies like Cisco?
Codex has helped companies like Cisco reduce code review times by up to 50%, allowing engineers to focus more on transformative work rather than manual checks. This efficiency is achieved as Codex reviews both human-written code and its own output.
What is the significance of the Codex SDK?
The Codex SDK allows developers to integrate the same agent that powers the Codex CLI into their own applications and workflows, providing structured outputs and context management. This enhances the performance of coding tasks without requiring extensive tuning.
What are the new admin features available for Codex?
New admin features for Codex include the ability to edit or delete cloud environments, enforce safer defaults for local usage, and access analytics dashboards for tracking usage and code review quality. These tools provide admins with greater control and visibility.
Key Statistics & Figures
Growth in daily usage of Codex
10x
Daily usage of Codex has increased more than 10 times since early August.
Tokens served by GPT-5-Codex
40 trillion
GPT-5-Codex has served over 40 trillion tokens in the three weeks since its launch.
Increase in pull requests merged by engineers
70%
Engineers using Codex merge 70% more pull requests each week compared to previous metrics.
Technologies & Tools
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Software
Codex SDK
Used to embed Codex capabilities into engineering workflows and applications.
Communication Tool
Slack
Used for integrating Codex to facilitate task delegation and collaboration.
Key Actionable Insights
1Integrating Codex into your Slack channels can streamline communication and task management within your engineering team.By tagging @Codex in Slack, teams can delegate tasks and receive immediate feedback, which enhances collaboration and reduces the time spent on task management.
2Utilizing the Codex SDK can significantly enhance your development workflows by embedding advanced coding capabilities directly into your applications.This allows for faster and more accurate coding tasks, enabling teams to focus on higher-level problem-solving rather than routine coding.
3Implementing the new admin features can help maintain security and efficiency in your coding environments.By managing environments and monitoring usage, admins can ensure that sensitive information is protected and that Codex is used effectively across the organization.
Common Pitfalls
1
Failing to properly integrate Codex into existing workflows can lead to underutilization of its capabilities.
Without a clear integration strategy, teams may miss out on the efficiency gains that Codex offers, resulting in continued reliance on manual coding practices.
Related Concepts
Integration Of AI/ML In Software Development
Best Practices For Using Coding Assistants
Advanced Usage Of Sdks In Engineering Workflows