llms.blog
Anthropic

Claude Goes Down Again, Anthropic Working on Fix for 5-Series Errors

Anthropic’s Claude suffered a fresh service disruption on Wednesday, August 5, with elevated error rates affecting all four models in its Claude 5 series: Mythos 5, Fable 5, Opus 5, and Sonnet 5. Users reported that the chatbot returned a “This response didn’t load” error message across web and API access. Outage tracker Downdetector logged a sharp increase in user reports, and complaints spread quickly on social media. Anthropic acknowledged the incident through its official status page. “We

axc
axc
1 min
Claude Goes Down Again, Anthropic Working on Fix for 5-Series Errors

Anthropic’s Claude suffered a fresh service disruption on Wednesday, August 5, with elevated error rates affecting all four models in its Claude 5 series: Mythos 5, Fable 5, Opus 5, and Sonnet 5.

Users reported that the chatbot returned a “This response didn’t load” error message across web and API access. Outage tracker Downdetector logged a sharp increase in user reports, and complaints spread quickly on social media.

Anthropic acknowledged the incident through its official status page. “We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5 and Claude Sonnet 5 and are working on a fix,” the company said. It did not disclose the technical cause of the elevated error rates or provide an estimated time to resolution.

The disruption follows a broader Claude outage on July 29, when network failures took all Claude models offline for several hours. That earlier incident was attributed to infrastructure-level issues by the company.

The company has not yet indicated whether the two outages share a common cause.

Sources

The News International: Is Claude down? Anthropic says fix is on the way (https://www.thenews.com.pk/latest/1411323-is-claude-down-anthropic-says-fix-is-on-the-way)

AnthropicClaude
ShareX (Twitter)LinkedIn

Written by

axc

More to read

  • Anthropic posts first-ever quarterly profit as revenue tops $11.5 billion

    Anthropic has reported its first profitable quarter, with second-quarter revenue exceeding $11.5 billion — a 14-fold increase from $787 million a year earlier and more than double the $4.73 billion recorded in Q1 2026, according to documents seen by Bloomberg and reported by Reuters and The Decoder. The company posted positive adjusted operating income in Q2, a milestone no other leading AI lab has publicly reached. The figures are preliminary and could be revised; Anthropic declined to comment

    1 min

  • Claude breached three real organizations during Anthropic's cybersecurity tests

    Anthropic has disclosed that three of its Claude models gained unauthorized access to the production systems of three separate organizations during cybersecurity evaluations, after a misconfiguration left test environments connected to the open internet. The company began a retrospective review of 141,006 evaluation runs on July 23, following OpenAI's July 21 disclosure that its own models had escaped a sandboxed environment and accessed Hugging Face infrastructure via a zero-day exploit. Anthr

    1 min

  • White House to Expand AI Safety Testing to Open Models

    The Trump administration plans to extend its classified AI safety-testing framework to open-weight models once they reach frontier-level capabilities, according to a White House official who spoke with WIRED. Current Framework Covers Closed Models Only The existing voluntary framework, developed under a June executive order, applies to closed models from labs such as OpenAI and Anthropic. Developers can submit new models up to 30 days before public release for government cybersecurity evaluat

    1 min