Anthropic’s AI service Claude is having artificially intelligent hiccups and availability problems across its basic chat service, API, and Claude Code offering.

The outfit’s [1]Status Page reports investigations into the problem commenced at 03:15 UTC on March 3rd. In three subsequent updates, the last time-stamped 04:43 UTC, the company again reported “We are continuing to investigate this issue.”

The Register tried to access the service at 05:10 UTC and was unable to log in. Claude produced the following error message.

[2]

Claude error message - Click to enlarge

[3]OpenAI’s Altman says Pentagon set ‘scary precedent’ binning Anthropic

[4]Anthropic launches new marketing blog, pretends it's being 'written' by 'retired' LLM

[5]Claude collaboration tools left the door wide open to remote code execution

[6]Anthropic accuses China's AI labs of ripping off content – just like it did

Anthropic’s social media accounts are silent on the matter, but users are filling in the blanks.

A common comment laments the fact that Claude going down means developers must revert to their pre-generative-AI habits and actually write some code without assistance.

[7]

We’ve also seen folks joyfully join some conspiratorial dots between Claude [8]reportedly being used by the US military to plan its attack on Iran, the subsequent [9]drone strikes that have disrupted operations at Amazon Web Services’ facilities in the Middle East, and Amazon’s [10]ties to Anthropic.

[11]

This is a developing story. The Register will update this story as information comes to hand. ®

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[1] https://status.claude.com/%E2%80%9D

[2] https://regmedia.co.uk/2026/03/03/screenshot_claude_error_message.jpg

[3] https://www.theregister.com/2026/03/02/open_ai_dow_anthropic_ai_ethics/

[4] https://www.theregister.com/2026/02/26/anthropic_claude_opus_3_blog/

[5] https://www.theregister.com/2026/02/26/clade_code_cves/

[6] https://www.theregister.com/2026/02/24/anthropic_misanthropic_chinese_ai_labs/

[7] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offprem/saas&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aaa_UUilymQQs56x2hnOUAAAA0Y&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

[8] https://www.theregister.com/2026/03/02/open_ai_dow_anthropic_ai_ethics/?_gl=1*g9s5wu*_ga*MTI0MjE1MDMxNS4xNzE5OTg5NTg5*_ga_JXW44Y23NM*czE3NzI1MTM3MzIkbzE5NDgkZzEkdDE3NzI1MTQ3ODAkajQxJGwwJGgw

[9] https://www.theregister.com/2026/03/02/amazon_outages_middle_east/?td=rt-3a

[10] https://www.theregister.com/2025/07/04/project_rainier_deep_dive/

[11] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offprem/saas&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aaa_UUilymQQs56x2hnOUAAAA0Y&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[12] https://whitepapers.theregister.com/