07:04
Claude Sonnet 5 performance degraded for 47 minutes
Anthropic reported degraded performance on Claude Sonnet 5. The incident lasted 47 minutes and has been resolved.
1 official
The Wire
Anthropic, newest first.
Linked and quoted from the labs, the press and the people using them. Times in UTC.
The Wire
Every development we picked up, including smaller stories beyond the labs. Newest first, times in UTC.
Friday 31 July
1 developmentThursday 30 July
2 developments14:24
Anthropic resolves degraded performance on Claude Opus 4.8
Anthropic reported degraded performance on Claude Opus 4.8. The incident, lasting about 41 minutes, has been resolved.
1 official
10:48
Anthropic resolves elevated errors across many Claude models
Anthropic reported elevated errors across many models. The incident, rated major impact, has been resolved after about 291 minutes.
1 official
AnthropicIncident · 30 Jul
Anthropic resolves elevated errors across many Claude models
Major outage of an hour or more
Wednesday 29 July
1 development22:36
Anthropic resolves elevated errors across all Claude models
Anthropic reported elevated errors across all models, rated critical. The issue has been resolved.
1 official
AnthropicIncident · 29 Jul
Anthropic resolves elevated errors across all Claude models
Major outage of an hour or more
Monday 27 July
3 developments14:36
Anthropic reports elevated errors on Claude Opus 5 and Haiku 4.5
Anthropic reported elevated errors affecting Claude Opus 5 and Haiku 4.5. The incident was resolved after 57 minutes, with errors returning to baseline.
1 official
12:30
Anthropic reports elevated errors on Claude Opus 5, now resolved
Anthropic reported elevated errors on Claude Opus 5. The incident lasted about 63 minutes and errors returned to baseline as of 4:47 PST.
1 official
09:05
Anthropic reports elevated errors on Claude Opus 5
Anthropic reported elevated errors on Claude Opus 5 starting at 2:03 PST. The incident was resolved after 48 minutes when errors returned to baseline.
1 official
Sunday 26 July
1 development10:44
Anthropic resolves elevated errors affecting Opus 5
Anthropic reported elevated errors for Opus 5, marked as a major incident. The incident has been resolved after about 87 minutes.
1 official
AnthropicIncident · 26 Jul
Opus 5
Major outage of an hour or more
Saturday 25 July
3 developments22:08
Anthropic resolves elevated errors affecting Claude models
Anthropic reported elevated errors affecting Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5 and other models. The incident, rated major, lasted 34 minutes and has been resolved.
1 official
19:44
Anthropic resolves elevated errors affecting several Claude models
Anthropic reported elevated errors affecting Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5. The incident, rated major, lasted 64 minutes and has been resolved.
1 official
AnthropicIncident · 25 Jul
Anthropic resolves elevated errors affecting several Claude models
Major outage of an hour or more
09:31
Anthropic releases Claude Opus 5, tops Artificial Analysis Intelligence Index
Anthropic's Claude Opus 5 leads the Artificial Analysis Intelligence Index with 61 points, ahead of Claude Fable 5 and GPT-5.6 Sol. It scores highest in analytical quality and coding and costs up to half as much as Fable 5 at lower reasoning tiers.
5 coverage1 community
AnthropicLaunch · 25 Jul
Claude Opus 5
New model generation from a lab