Uptime50%
22.3
Claude status & reliability
Anthropic
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.
Reliability — last 30d
Composite Score
0.0/100
uptime · freq · sev · mttr
▼ 14.3 vs prior 30d
Uptime
0.00%
critical + 0.3 × major (Statuspage formula)
Incidents
0
top type: elevated errors
Median MTTR
1h 26m
bad day: 99h 21m
Component
Incidents
Down (attr.)
Median MTTR
Last
Frequency20%
89.6
Severity20%
27.3
MTTR10%
28.0
SLA Compliance
How often does this provider clear their stated availability target?
Anthropic Commercial Terms · 99.90% · source ↗
✕ last 30d92.90%-7.00%
Met SLA in 1 of 13 weeks (8%)
13 weeks on record
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).
MinorMajorCritical
Total 8 incidents
Elevated errors
64%
Degraded
27%
Latency
9%
S
0
M
Monday13:00–14:00 UTC
1incident
1 major
- Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1Oct 5
1
T
Tuesday00:00–01:00 UTC
1incident
1 major
- Elevated errors for multiple modelsSep 22
Tuesday09:00–10:00 UTC
1incident
1 major
- Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1Sep 15
Tuesday12:00–13:00 UTC
1incident
1 major
- Elevated errors for Claude Opus 5.5Oct 6
Tuesday14:00–15:00 UTC
1incident
1 major
- Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude APISep 29
4
W
Wednesday01:00–02:00 UTC
1incident
1 major
- Elevated errors loading usage data on platform.claude.comOct 7
Wednesday13:00–14:00 UTC
1incident
1 major
- Elevated errors on platform.claude.comOct 7
2
T
Thursday15:00–16:00 UTC
1incident
1 major
- Degraded functionality for Claude Cowork on WindowsSep 10
Thursday16:00–17:00 UTC
1incident
1 minor
- Delayed credits on the Claude PlatformOct 1
2
F
0
S
0
00
06
12
18
HOUR OF DAY · UTC9 incident starts · hover any cell for detail
Hottest hour
Monday 13:00 1
Worst day
Tuesday 4
Worst time of day
13:00–14:00 2
Typical fix
1h 26m
half of incidents resolve faster
On a bad day
99h 21m
9 in 10 resolve faster than this
Distribution
<15m
1
15m–1h
3
1–4h
4
4–24h
1
24h+
2
+0 ongoing (not counted above)
MTTR Trend (12 weeks)
Are they recovering faster or slower over time? Lower is better.
4458m worstnow 4458m
12 weeks agodelta +4401m (worse)now
Showing 6 of 200 · 4 of 98 daysLatest first
WED, OCT 72026-10-073 incidents
TUE, OCT 62026-10-061 incident
MON, OCT 52026-10-051 incident
THU, OCT 12026-10-011 incident