OpenAI said on Thursday its coding tool Codex was being added ​to the ChatGPT mobile app, expanding ‌access to the product as competition intensifies in the market for AI code-generation tools.
Coding tools ​have become an important way ​for AI companies to reach business ⁠customers, with OpenAI competing against rivals, ​including Anthropic, whose Claude Code tool has ​gained traction among developers.

Codex can perform tasks such as writing features, answering questions about codebase, ​fixing bugs and proposing pull requests ​for review. The mobile app allows users to stay ‌in ⁠the loop remotely after connecting to machines where Codex is running, enabling them to review outputs, approve changes and ​start new ​tasks.
The ⁠tool, launched as a desktop app in February, is being rolled ​out as a preview within ​the ⁠ChatGPT mobile app on iOS and Android, OpenAI said. It can connect only ⁠to ​macOS systems, with Windows ​support expected to be introduced soon.