LangChain Outage History
LangChain is up right nowPingoru has recorded 55 incidents for LangChain: 55 in the last 12 months and 14 in the last 90 days.
Show as a table
| Month | Incidents | Hours with an open incident |
|---|---|---|
| April 2026 | 4 | 9 of 720 (1%) |
| May 2026 | 8 | 37 of 744 (5%) |
| June 2026 | 6 | 9 of 720 (1%) |
| July 2026 | 5 | 1 of 744 (0%) |
| August 2026 | 5 | 29 of 744 (4%) |
| September 2026 | 3 | 7 of 720 (1%) |
| October 2026 | 6 | 272 of 587 (46%) |
Incidents, newest first
Minor February 27, 2026 Bulk export delays – LangSmith API
Started Feb 27, 2026, 03:14 AM UTC· resolved Feb 27, 2026, 03:14 AM UTC
- identified Feb 26, 2026, 06:12 PM UTC
We've identified a capacity issue causing stuck and delayed bulk exports. We're working on increasing capacity to mitigate.
- identified Feb 26, 2026, 08:24 PM UTC
We've scaled up the relevant systems and are observing recovery as the queue drains.
- monitoring Feb 26, 2026, 10:58 PM UTC
The backlog is continuing to process, and we are continuing to monitor.
- resolved Feb 27, 2026, 03:14 AM UTC
This incident has been resolved.
Minor February 23, 2026 Increased 5XX error rates across all LangSmith endpoints – LangSmith Run Ingestion, LangSmith Billing, LangSmith PromptHub, LangSmith API and 2 more
Started Feb 23, 2026, 12:28 AM UTC· resolved Feb 23, 2026, 12:28 AM UTC
- monitoring Feb 22, 2026, 12:05 AM UTC
We have just experienced a ~18 minute period between 3:24-3:42PM PDT of elevated 5XX error rates impacting all endpoints including trace ingestion. Our systems have recovered and we are monitoring closely.
- monitoring Feb 22, 2026, 12:06 AM UTC
Systems are operational, and we are monitoring closely.
- resolved Feb 23, 2026, 12:28 AM UTC
All services were restored and fully operational on February 21, 2026, at 23:42 UTC.
Minor February 21, 2026 Issues with stats functionality – LangSmith Application
Started Feb 21, 2026, 07:33 PM UTC· resolved Feb 21, 2026, 07:33 PM UTC
- investigating Feb 21, 2026, 05:17 PM UTC
Impact limited to stats and no impact to trace ingestion or other capabilities. Our engineers are working with our service provider to address the cause
- monitoring Feb 21, 2026, 05:53 PM UTC
Services are recovering. We are monitoring to ensure normal operations
- resolved Feb 21, 2026, 07:33 PM UTC
All services are back to normal operations
Minor February 21, 2026 Issues with stats functionality 2h 16m
Started Feb 21, 2026, 05:17 PM UTC· resolved Feb 21, 2026, 07:33 PM UTC
No vendor updates were posted for this incident.
Minor February 19, 2026 LangSmith Deployments downtime in us-central region – LangSmith Deployments Data Plane
Started Feb 19, 2026, 09:20 PM UTC· resolved Feb 19, 2026, 09:20 PM UTC
- investigating Feb 17, 2026, 09:12 PM UTC
All deployments in the us-central region are currently down.
- identified Feb 17, 2026, 10:22 PM UTC
Fix is in progress, deployments should be back up shortly.
- monitoring Feb 17, 2026, 11:04 PM UTC
All deployments in the us-central region have been restored, currently monitoring the health of the cluster to verify no degradation.
- resolved Feb 19, 2026, 09:20 PM UTC
LangSmith Deployments us-central cluster is now fully operational.
Minor February 4, 2026 Investigating issues with Dataset Example visibility – LangSmith API, LangSmith Application
Started Feb 04, 2026, 02:04 PM UTC· resolved Feb 04, 2026, 02:04 PM UTC
- investigating Feb 04, 2026, 12:17 PM UTC
We are currently investigating an issue where some users are seeing 0 examples or incomplete data within their datasets. Our preliminary investigation suggests this is a display and query issue rather than a loss of underlying data. What this means for you: • You may see "0 examples" on datasets that previously contained data. • API calls for these datasets may return incomplete results, which can impact active evaluations and experiments. Current Status: We are currently working on a fix to restore full visibility to all affected datasets. No data has been deleted, and we are working to ensure all examples are visible again as soon as possible.
- identified Feb 04, 2026, 01:28 PM UTC
We have identified the root cause of an issue affecting dataset visibility and are working on a fix. No data loss has occurred. We will provide another update shortly.
- monitoring Feb 04, 2026, 01:50 PM UTC
A fix has been deployed to restore dataset visibility. We are currently monitoring the system to ensure all data is appearing correctly across the platform.
- resolved Feb 04, 2026, 02:04 PM UTC
Issue has been identified as only having affecting EU customers. No impact on US customers.
Major December 27, 2025 Node rollout causing downtime for Langsmith Deployments 9d 15h
Started Dec 27, 2025, 04:16 AM UTC· resolved Jan 05, 2026, 08:07 PM UTC
No vendor updates were posted for this incident.
Major December 17, 2025 Trace billing under-reporting 4d 14h
Started Dec 17, 2025, 11:45 PM UTC· resolved Dec 22, 2025, 02:09 PM UTC
No vendor updates were posted for this incident.
Major December 17, 2025 Elevated API error rates 16m
Started Dec 17, 2025, 12:23 AM UTC· resolved Dec 17, 2025, 12:40 AM UTC
No vendor updates were posted for this incident.
Major December 2, 2025 Some invoices are duplicated resulting in duplicate seat charges 1d 16h
Started Dec 02, 2025, 11:26 AM UTC· resolved Dec 04, 2025, 03:38 AM UTC
No vendor updates were posted for this incident.
Minor November 18, 2025 Increased rates of 500s 8h 21m
Started Nov 18, 2025, 06:34 PM UTC· resolved Nov 19, 2025, 02:55 AM UTC
No vendor updates were posted for this incident.
Critical November 14, 2025 Login and Run Ingestion impacted for LangSmith SaaS 7h 15m
Started Nov 14, 2025, 04:30 PM UTC· resolved Nov 14, 2025, 11:46 PM UTC
No vendor updates were posted for this incident.