Compare

Anthropic API vs OpenAI API

Admitted uptime

Last 30 daysTime not covered by a Sev 1 the provider posted itself. A best case.
99.99%
100.00%
Last 90 days
99.94%
100.00%
Last 12 months
99.99%
100.00%

Grades (90 days)

OverallSeverity weight × minutes, summed over the window. Fewer points, better grade.
F · 6,724 pts
C · 2,013 pts
ProductionYour users are hit: apps, APIs, databases, inference
D
C
ShippingYou can't deploy, build or manage: CI, CLI, dashboard, auth, billing
B
A

Incidents (90 days)

Total incidentsEverything posted on the status page except scheduled maintenance.
50
25
Sev 1 · Lights outProd site, API or database down, or data loss
4
0
Sev 2 · BleedingProd degraded or partly down
28
10
Sev 3 · Can't shipCan't deploy, build or manage it
5
3
Sev 4 · PapercutDocs, status page, slow dashboard
13
12
Median fixMedian time to resolve. Half of incidents were fixed faster.
1h 13m
1h 38m
LongestLongest single incident, start to resolved.
6d 4h
2d 22h
Security incidentsIncidents the provider flagged as security. They count one tier higher.
1
0

Trend and communication

Last 6 months vs 6 beforeIncident count, last 6 months against the 6 before.
Worse (0 → 50)
Worse (0 → 25)
Sev 1–2 postmortemsSev 1–2 incidents with a published write-up.
0 of 32
0 of 10
VerdictOpenAI API has the best 90-day record; Anthropic API resolves incidents fastest.Running app? Watch Production. Deploying all day? Watch Shipping.

Matchups

Uptime as admitted on each status page. How grades work