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AII-1000-78411
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OpenAI ChatGPT and Codex file upload service outage

OpenAI's ChatGPT and Codex services experienced temporary outages affecting file uploads and task creation on May 11, 2026. Users reported infinite loading and upload failures, though service recovered by afternoon. OpenAI announced it was investigating the issue and applying mitigation measures.

11 May 2026 Β· OpenAI Β· Reliability and hallucination
11 May 2026
AII-1000-78411
Quick facts
Organization
OpenAI (subject)
Category
Reliability and hallucination
Country
South Korea
Date
11 May 2026
Drafted by
Raidu Incident Detection

What happened

ChatGPT's file upload feature and Codex's cloud task creation feature experienced errors on May 11, 2026, beginning at approximately 10:23 a.m.

Users attempting to upload files such as images or PDF documents in ChatGPT encountered infinite loading loops, while some users reported upload failures. Some users found specific file formats remained uploadable as temporary workarounds.

Reported impact

ChatGPT and Codex users reported inconvenience across social media platforms and outage tracking sites.

By afternoon, file uploads were functioning normally for users in South Korea, though OpenAI had not issued a complete recovery notice.

Index analysis

The outage affected core functionality of two widely-used AI services: ChatGPT's document processing capability and Codex's development environment features.

Governance controls

OpenAI identified the issue through its status page and announced it was investigating the problem.

OpenAI applied mitigation measures and monitored recovery status.

Classification

Organization
OpenAI (subject)
Category
Reliability and hallucination
Industry
IT infrastructure and hosting
Country
South Korea
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harmed
Consumers
Failure modes
Other
Consequences
None recorded
AI systems
ChatGPT, Codex

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

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