Observed Signal · May 23, 2025 · Technical Release · Source: OnlineMarketing.de · Impact: 3/5 · Sentiment: Neutral
OpenAI launches Codex agent in ChatGPT
OpenAI introduced Codex as a new cloud-based software engineering agent for ChatGPT, expanding its portfolio beyond existing agents. Codex is designed to handle coding tasks by writing features, answering code questions, fixing bugs, and generating pull requests within a dedicated cloud sandbox, enabling developers to delegate work and scale productivity. The agent is based on codex-1 and trained with reinforcement learning on real coding tasks to mirror human coding style and PR preferences. OpenAI described Codex as a step toward agent-native software development and will roll out in a research preview, with pricing to be determined later. Access is offered to Pro, Enterprise, and Team accounts, with Edu and Plus users slated to gain access soon. Cisco, Kodiak, and other companies have already tested the tool, highlighting potential use cases in debugging, testing, and code optimization.
Introducing a new AI coding agent (Codex) with enterprise rollout and pricing; potential impact on software development workflows.
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Key Takeaways & Evidence Grounding
- OpenAI announced Codex as a cloud-based software engineering agent for ChatGPT.
- Codex is based on the codex-1 model and trained with reinforcement learning on coding tasks.
- Codex can write features, answer code questions, fix bugs, and create pull requests within a dedicated cloud sandbox.
- Pro, Enterprise, and Team users can access Codex in ChatGPT; Edu and Plus access will be available later.
- Pricing for Codex in the Responses API is 1.5 USD per million tokens input and 6 USD per million tokens output.
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OpenAI launches Codex App for AI agents
OpenAI unveiled the Codex App, a centralized control hub for AI agents that can autonomously work on projects beyond mere code generation. Powered by GPT-5 Codex, the app bundles coding, testing, and project-management capabilities into a dedicated mobile/desktop surface. It is already available for macOS, with Windows and Linux versions announced and on a waitlist. The Codex App enables agents to operate within repository contexts, execute end-to-end tasks (including file changes and tests), and run multiple tasks in parallel via multi-agent Workflows and Worktrees, all within isolated sandboxes. It can be used across IDEs, GitHub Reviews, and the terminal under a single account. OpenAI highlighted that the launch marks a shift toward end-to-end autonomous development workflows. Sam Altman tweeted that paid-plan rate limits are doubled for two months, while free/go access is extended. Romain Huet presented the app on LinkedIn.
OpenAI launches reusable Codex cloud environments
At its Dev Day, OpenAI announced new capabilities for its software engineering agent Codex, including reusable cloud development environments accessible from any device. These environments are more persistent and configurable, allowing faster task startup and shared team workspaces. The updated Codex CLI supports voice commands, and a new /agents view helps delegate and track tasks. Codex can now be integrated into code review within the ChatGPT desktop app, enabling summaries and feedback on GitHub and GitLab. Additionally, OpenAI introduced Codex Security Cloud for repository scanning and fix preparation, leveraging models from its Daybreak Blue initiative. API updates include a Decisions API using Luna and an updated Agents API with computer use and AWS Bedrock integration.
OpenAI Codex Update Adds Agentic App Control
OpenAI released a major update to its ChatGPT-based coding agent Codex (used by over three million developers weekly) that expands the tool from code generation to agentic task execution. New capabilities include system-level app control (e.g., Mac automation), parallel agents running background tasks, long-running/persistent workflows with memory and context, integrated design/image generation and an in-workflow browser for testing and commenting, and more than 90 plugin integrations (GitHub, Slack, Notion, JIRA). The update is positioned as a direct response to competitors such as Anthropic’s Claude Code and is being rolled out for the Codex Desktop App now, with additional features planned for EU users. OpenAI frames the release as a push toward a new standard for coding AI that manages whole development workflows, not just single prompts.
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