OpenAI has restored full functionality to its Codex AI coding platform following a disruption earlier Tuesday that generated widespread user complaints. The company confirmed the service experienced elevated errors, with many developers encountering model at capacity alerts preventing access to the GPT-5.5 frontier model. Service anomalies began at 6:32 a.m. Eastern Time, as evidenced by initial status dashboard flags. Thibault Sottiaux, OpenAI's Codex lead, acknowledged the issue via X, noting the team was working to stabilize the platform. By 9:48 a.m. ET, OpenAI's status indicator returned to green, signaling that all impacted services had fully recovered. During the outage, users shared screenshots detailing dashboard failures and recurring capacity restrictions, with some reporting issues persisting as the system came back online. Social media feedback included requests for the anticipated GPT-5.6 release, reflecting user impatience with the tool's stability. The disruption highlights the intense competition in the generative AI coding sector, where Anthropic's Claude Code currently holds a dominant market position. Both OpenAI and Anthropic have recently confirmed they are taking initial steps toward their respective initial public offerings, with platform reliability and model availability expected to be critical factors in their market valuation and commercial growth.