OpenAI has announced a temporary upgrade for its AI coding tool, Codex. The company increased usage limits starting December 25, 2025.
The boost will stay active until January 1, 2026. OpenAI says the move is a holiday thank-you to developers who use Codex for daily coding work.
The update gives developers more freedom to build, test, and ship code during the year-end period.
OpenAI Codex Limits: OpenAI Temporarily Expands Codex Usage Limits

OpenAI shared the update through its leadership team. The company confirmed that Codex users can now access higher limits for a short time. This helps developers work on larger projects without hitting restrictions.
Codex powers many popular coding tools. One of them is GitHub Copilot. These tools help developers write, review, and fix code faster.
What the Codex limit boost includes:
- Higher usage limits until January 1
- No extra cost for existing users
- More room for large coding tasks
- Faster experimentation and testing
- Better support for holiday projects
The timing is important. Many teams work on updates before the new year. The extra access helps them finish tasks faster.
AI coding tools are growing fast. Millions of developers now rely on them for daily work. Many large companies already use Codex-based tools across their teams.
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Codex Adoption Grows as AI Coding Demand Rises
OpenAI reports strong growth in Codex usage. Adoption has increased sharply in recent months. Large companies say Codex helps save time and reduce errors.
Businesses report faster code reviews and shorter project timelines. New engineers also learn codebases more quickly with AI support.
Benefits reported by companies:
- Faster code writing
- Shorter review cycles
- Quicker project delivery
- Easier onboarding for new staff
- Better overall productivity
OpenAI also recently upgraded Codex with a newer AI model. The update improved accuracy and reasoning. Codex can now handle more complex coding tasks. These include refactoring old code and managing long projects.
Technical improvements in Codex:
- Better coding accuracy
- Stronger reasoning skills
- Support for long tasks
- Improved handling of large code files
The global market for AI coding tools is also expanding. More developers plan to use AI for software development in the future.
The temporary limit boost allows developers to explore Codex more freely. After January 1, limits will return to normal.
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