Is Lightning AI down? › Outage history
Lightning AI outage history
Lightning AI published 18 incidents on its official status page since Oct 20, 2025, 3 of them rated at the highest impact level. 4 were major or long incidents with their own pages; the biggest are listed first. Below them is every smaller incident, then our own 90 day check history.
Biggest Lightning AI outages
Ranked by the official impact level, then by how long they lasted. Each has its own page with the cause, the fix time and every official update.
- Oct 16, 2026: Service is down to address a security incident ongoing · rated "Critical"
- Oct 2, 2026: Global Outage 19 hours 52 min · rated "Critical"
- Jun 8, 2026: Degraded experience with AWS on Lightning Cloud 7 hours 49 min · rated "Major"
- Oct 1, 2026: Lightning H200 Outage 4 hours 18 min · rated "Major"
Every smaller Lightning AI incident
Minor and short incidents from the Lightning AI status page, newest first, each with a line from the official updates. Times are UTC.
October 2026
Oct 3, 2026, 04:42 UTC · Service recovery tracker
2 days 14 hours · marked as no impact
"Model APIs are now back online. Current service status: - Nebius - offline - Lambda Labs - offline All other services are operational"
September 2026
Sep 10, 2026, 20:37 UTC · Degraded Performance on Lightning Cloud Workloads
31 minutes · marked as no impact
"Lightning Cloud workloads are experiencing degraded performance on the platform. We are investigating. In the meantime, please use GCP or AWS."
Sep 4, 2026, 22:29 UTC · Degraded Performance on Lightning Cloud Workloads
2 hours 7 min · marked as no impact
"Lightning Cloud workloads are experiencing degraded performance on the platform. We are investigating. In the meantime, please use GCP or AWS."
August 2026
Aug 14, 2026, 16:36 UTC · Lightning Cloud workloads
13 minutes · rated "Critical"
"This issue is now resolved"
July 2026
Jul 28, 2026, 17:18 UTC · Website down
20 minutes · marked as no impact
"The issue has been identified and a fix is being implemented."
Jul 22, 2026, 02:00 UTC · Degraded Studio environment restore performance
42 hours 8 min · marked as no impact
"We are seeing degraded performance and intermittent errors on Studio environment restoration due to a third-party outage. Some Studios are experiencing slow or failed environment restoration."
June 2026
Jun 22, 2026, 14:37 UTC · Website performance degraded
2 hours 4 min · marked as no impact
"The issue has been identified and a fix is being implemented."
May 2026
May 20, 2026, 21:15 UTC · Degraded performance on Nebius
3 hours 56 min · marked as no impact
"Nebius workloads are currently experiencing degraded performance on the platform."
May 14, 2026, 19:08 UTC · Degraded performance on Nebius
17 hours 54 min · marked as no impact
"Nebius workloads are currently experiencing degraded performance on the platform."
April 2026
Apr 29, 2026, 19:13 UTC · Degraded performance on Nebius
3 hours 36 min · marked as no impact
"Nebius workloads are currently experiencing degraded performance on the platform."
February 2026
Feb 6, 2026, 22:00 UTC · Website down
duration not stated · marked as no impact
"We experienced an outage impacting access to lightning.ai between 2:00pm and 2:06pm Pacific. The situation is now resolved."
December 2025
Dec 10, 2025, 11:00 UTC · Website down
21 minutes · marked as no impact
"We are investigating an issue causing intermittent outages of our website. Running machines and SSH access are not impacted."
November 2025
Nov 18, 2025, 21:10 UTC · Some services experiencing failures
55 minutes · rated "Minor"
"Environment cloning and downloading plugin templates are experiencing failures"
October 2025
Oct 20, 2025, 07:30 UTC · Service degraded - AWS
15 hours 29 min · marked as no impact
"Due to an ongoing issue with AWS some Studios and Jobs are experiencing issues including slow saving and starting."
Lightning AI uptime, last 90 days
Tracked since Oct 7, 2026. Updated Oct 22, 2026, 12:35 UTC.
Every Lightning AI problem in the last 90 days
No outages, degraded periods or maintenance recorded since Oct 7, 2026.
Day by day
| Day (UTC) | Uptime | Avg response | Worst |
|---|---|---|---|
| Oct 22, 2026 | 100% | 62 ms | Up |
| Oct 21, 2026 | 100% | 99 ms | Up |
| Oct 20, 2026 | 100% | 102 ms | Up |
| Oct 19, 2026 | 100% | 82 ms | Up |
| Oct 18, 2026 | 100% | -- | Up |
| Oct 17, 2026 | 100% | -- | Up |
| Oct 16, 2026 | 100% | 418 ms | |
| Oct 15, 2026 | 100% | 557 ms | Up |
| Oct 14, 2026 | 100% | 417 ms | Up |
| Oct 13, 2026 | 100% | 230 ms | Up |
| Oct 12, 2026 | 100% | 232 ms | Up |
| Oct 11, 2026 | 100% | 193 ms | Up |
| Oct 10, 2026 | 100% | 152 ms | Up |
| Oct 9, 2026 | 100% | 165 ms | |
| Oct 8, 2026 | 100% | 176 ms | Up |
| Oct 7, 2026 | 100% | 158 ms |
Lightning AI outage questions
Was Lightning AI down today?
No. We recorded no Lightning AI outage, degraded period or maintenance today (Oct 22, 2026, UTC).
Was Lightning AI down yesterday?
No. We recorded no Lightning AI outage, degraded period or maintenance yesterday (Oct 21, 2026, UTC).
When was Lightning AI last down?
The latest incident on the Lightning AI status page started Oct 16, 2026, 20:34 UTC: Service is down to address a security incident (ongoing, 5 days 16 hours so far).
What was the biggest Lightning AI outage?
Of the incidents on record since Oct 20, 2025, the biggest was on Oct 16, 2026: Service is down to address a security incident. The Lightning AI status page rated it "Critical" and it lasted ongoing, 5 days 16 hours so far.
How often does Lightning AI go down?
Lightning AI's status page posted 18 incidents since Oct 20, 2025, 4 of them in the last 30 days. Most incidents affect part of the service, not all of it. Uptime from our own checks over the last 90 days: 100%.
Times are UTC. Official incidents are the company's own posts, quoted from the Lightning AI status page. Problem periods start when the official status page or our checks first show a problem and end when the service is next found working, so durations are accurate to within a few minutes. Recent outages across all services.