Breaking

ChatGPT, Claude and Grok hit overlapping outages on September 3

September 3, 2026 at 11:20 EDT

Foundation Models

ChatGPT, Claude and Grok all experienced service disruptions on September 3, as users worldwide reported failed access, missing responses and unavailable models. OpenAI, Anthropic and xAI posted separate incident updates, but none had confirmed a common cause.

SEP 3, 2026 · AI SERVICES

ChatGPT, Claude and Grok report outages

Users worldwide reported trouble across the three services. Provider status pages showed separate incidents with uneven scope and no shared cause disclosed.

The snapshot

Named platforms with incidents

Claude models listed

13:30 UTC

Grok incident start

OpenAI incident scope

The incident entry listed 15 ChatGPT components and 4 Codex components as affected.

ChatGPT components

Codex components

Each block represents one affected component; taller stacks mean more components.

What users saw

Some endpoints stayed available

Anthropic listed Console and Government as operational. xAI listed the EU-West API as available.

Users saw uneven failures

Grok reports passed 1,000, and users encountered an unavailable-model message.

THE TAKEAWAY

The overlap is real; one cause is not confirmed

OpenAI, Anthropic and xAI posted separate incidents. Each had different affected products and regions, and no common root cause was disclosed.

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