Windsurf has announced integration with OpenAI's GPT-5-Codex, offering it free for a limited time to paying users at a cost of 0x Credits. Free users can also use it at a cost of 0.5x Credits. The official changelog indicates that this update has been released with the release and includes improvements to long-running tasks and queued message handling to facilitate Codex's use in complex iterations and code reviews.
As a model optimized for proxy-based coding, GPT-5-Codex is designed for collaboration across IDEs, CLIs, and cloud sandboxes, making it suitable for long builds, reviews, and multi-step remediation processes. Windsurf notes that this is a limited-time promotion with a gradual rollout. Specific availability and pricing are subject to your account and page display.
Frequently Asked Questions
Q: Who can use it for free?
A: Paid users can use it at 0x Credits during the limited-time promotion period; free users can use it but will be charged at 0.5x Credits.
Q: How do I switch to GPT-5-Codex on Windsurf?
A: Select GPT-5-Codex in the model selector; if it is not displayed, wait for the push or update to the latest version.
Q: What other supporting improvements are there in this update?
A: Add queue message processing and memory optimization to improve the stability and responsiveness of long-running tasks.
Q: How is it different from general GPT-5?
A: GPT-5-Codex focuses on engineering scenarios, emphasizing code review, long tasks, and tool calls, and is deeply integrated with IDE/CLI/cloud sandbox.
Q: How long does the activity last?
A: This is a limited-time promotion. The end time is subject to the Windsurf official page and announcement.
