September 24, 2025
OpenAI has released GPT-5-Codex, now generally available in Azure AI Foundry and in public preview for GitHub Copilot in Visual Studio Code. This release marks a significant step forward in AI-assisted development, bringing multimodal intelligence, advanced automation, and integrated code review expertise directly into developers’ workflows.
What’s New in GPT-5-Codex
Multimodal coding in a single flow
Developers can now provide text and image inputs in the same workflow. This enables context-aware, repository-scale solutions, such as feeding repo diagrams or UI screenshots directly into the coding process.
Advanced tool use
Through the Response API in Azure AI Foundry, developers get seamless automation and deeper integrations, cutting development time while streamlining complex tasks.
AI-powered code review
Trained specifically for reviewing code, GPT-5-Codex identifies critical flows and potential issues early. It transforms the traditionally manual bottleneck of code review into a faster, adaptive, and AI-assisted process.
How It Helps Developers
Stay in flow: Move smoothly from issue tracking to coding and UI checks without losing context.
Refactor and migrate confidently: Whether cleaning up codebases or moving to new frameworks, GPT-5-Codex helps stage updates, run tests, and resolve issues on the fly.
Use Cases
Repo-aware refactoring assistant: Input repo context and diagrams to get cohesive refactors, automated builds, and visual validation.
Flaky test hunter: Pinpoint and fix unstable test cases by executing runs, inspecting logs, and iterating until stable.
Cloud migration copilot: Edit infrastructure-as-code scripts, execute CLI commands, and debug migration errors with AI assistance.
Pricing & Deployment
GPT-5-Codex is now available globally with initial deployment in East US 2 and Sweden Central regions.
| Pricing ($/million tokens) | Input | Cached Input | Output |
|---|---|---|---|
| Standard | $1.25 | $0.125 | $10.00 |
Why It Matters
GPT-5-Codex extends beyond writing snippets — it’s built to redefine developer productivity by blending reasoning, automation, and multimodal intelligence. Developers can now accelerate coding, debugging, refactoring, and cloud migrations with AI as a real-time coding partner.
Start building with GPT-5-Codex today in Azure AI Foundry or try it in GitHub Copilot for Visual Studio Code (Public Preview).
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