AI safety company founded by ex-OpenAI researchers Dario and Daniela Amodei. Builds the Claude family of large language models with a focus on steerability, interpretability, and reducing harmful outputs.
Method: a rolling quarter (13 weeks ≈ 91 days). Each cell is one 7-day slice of Statuspage-standard uptime (1 − (critical + 0.3 × major) / window; minors and maintenance excluded; red when the slice dips below the stated SLA).
Claude — Incidents by Day last 30d
MinorMajorCritical
Total 45 incidents
0
1
3
4
5
05-0605-1005-1405-1805-2205-2605-3006-03
Worst Incidents
Ranked by severity-weighted duration (impact × wall-clock). Click any incident for the full update timeline.
Type of Failure
Categorised from the public incident headlines (outage / latency / auth / etc.).
Elevated errors
38
83%
Degraded
4
9%
Auth & login
2
4%
Outage
1
2%
Other
1
2%
When It Breaks
Incident starts by weekday × hour, UTC. Hover a cell for incident detail.
S
0
M
Monday06:00–07:00 UTC
2incidents
2 minor
Opus 4.7 elevated errorsJun 1
Elevated errors on Claude Haiku 4.5May 18
Monday09:00–10:00 UTC
1incident
1 minor
Sonnet 4.5 elevated errorsJun 1
Monday12:00–13:00 UTC
1incident
1 minor
Elevated errors for Claude Opus 4.7Jun 1
Monday14:00–15:00 UTC
1incident
1 minor
Elevated errors on Claude Sonnet 4.6Jun 1
Monday18:00–19:00 UTC
1incident
1 minor
Degraded performance for Claude Sonnet 4.6Jun 1
Monday22:00–23:00 UTC
1incident
1 major
Elevated errors for Claude Opus 4.7May 18
7
T
Tuesday01:00–02:00 UTC
1incident
1 minor
Elevated errors for Claude Code in SlackMay 26
Tuesday04:00–05:00 UTC
1incident
1 minor
Elevated errors on Claude.ai and Claude Code loginMay 19
Tuesday06:00–07:00 UTC
1incident
1 major
Elevated errors on multiple modelsJun 2
Tuesday07:00–08:00 UTC
1incident
1 minor
Elevated errors on Claude Haiku 4.5May 19
Tuesday08:00–09:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.7May 19
Tuesday14:00–15:00 UTC
1incident
1 major
Elevated errors on Claude Opus 4.7May 19
Tuesday18:00–19:00 UTC
1incident
1 minor
Elevated Error Rate for Vaults and CredentialsMay 12
Tuesday19:00–20:00 UTC
1incident
1 major
Elevated errors for Claude Sonnet 4.6 and Haiku 4.5May 12
Tuesday23:00–00:00 UTC
1incident
1 major
Elevated errors on Claude Opus 4.7May 12
9
W
Wednesday04:00–05:00 UTC
1incident
1 major
Issue affecting some Claude Code servicesJun 3
Wednesday05:00–06:00 UTC
1incident
1 major
Elevated errors on Claude Opus 4.7May 27
Wednesday07:00–08:00 UTC
1incident
1 minor
Elevated errors on Opus 4.7Jun 3
Wednesday08:00–09:00 UTC
2incidents
1 major1 minor
Elevated errors on Claude Opus 4.7May 27
Elevated errors on Claude Haiku 4.5May 20
Wednesday11:00–12:00 UTC
1incident
1 major
Claude.ai is experiencing elevated error ratesMay 13
Wednesday12:00–13:00 UTC
1incident
1 major
Claude.ai is experiencing elevated error ratesMay 13
Wednesday14:00–15:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.7May 20
Wednesday15:00–16:00 UTC
1incident
1 major
Elevated errors across multiple modelsMay 6
Wednesday22:00–23:00 UTC
1incident
1 major
Connection failures for organizations restricting GitHub access by IP addressMay 6
10
T
Thursday08:00–09:00 UTC
1incident
1 major
Elevated errors on Claude Opus 4.7May 28
Thursday12:00–13:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.7May 7
Thursday19:00–20:00 UTC
1incident
1 minor
Billing and subscription management issuesMay 28
Thursday20:00–21:00 UTC
2incidents
2 minor
Elevated errors on Claude.aiMay 21
Elevated errors on Claude Opus 4.7May 14
5
F
Friday00:00–01:00 UTC
1incident
1 major
Elevated error rates on requests to some modelsMay 15
Friday04:00–05:00 UTC
1incident
1 major
Elevated error rate on multiple modelsMay 22
Friday08:00–09:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.8May 29
Friday09:00–10:00 UTC
1incident
1 major
Elevated errors across Claude ModelsMay 8
Friday10:00–11:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.7May 22
Friday14:00–15:00 UTC
1incident
1 minor
Elevated Errors on File OperationsMay 8
Friday15:00–16:00 UTC
1incident
1 minor
Elevated errors on Claude Sonnet 4.6May 8
Friday17:00–18:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.7May 8
Friday18:00–19:00 UTC
1incident
1 major
Elevated errors for Claude Opus 4.8May 29
Friday22:00–23:00 UTC
1incident
1 major
Claude Code IDE extension unable to load on WindowsMay 8
10
S
Saturday07:00–08:00 UTC
1incident
1 minor
Elevated errors on Claude Opus 4.1May 9
Saturday18:00–19:00 UTC
1incident
1 major
Elevated error rates on requests to multiple modelsMay 16
Saturday22:00–23:00 UTC
1incident
1 minor
opus 4.7 elevated errorsMay 30
Saturday23:00–00:00 UTC
1incident
1 minor
Claude Code on the Web Partial OutageMay 9
4
00
06
12
18
HOUR OF DAY · UTC45 incident starts · hover any cell for detail
Hottest hour
Monday 06:00 2
Worst day
Wednesday 10
Worst time of day
08:00–09:00 5
How fast they fix things
Distribution of resolution times alongside the 12-week trend so you can see whether they're getting faster or slower.
Typical fix
39m
half of incidents resolve faster
On a bad day
3h 20m
9 in 10 resolve faster than this
Distribution
<15m
6
15m–1h
19
1–4h
18
4–24h
3
24h+
0
+0 ongoing (not counted above)
MTTR Trend (12 weeks)
Are they recovering faster or slower over time? Lower is better.