Snowflake experienced a major incident on October 2, 2025 affecting AI and ML and AI and ML and 1 more component, lasting 3h 1m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 02, 2025, 07:12 PM UTC
Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 60 minutes. Customer experience: Customers hosted in the specified regions may intermittently experience degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, and Snowflake Copilot.
- investigating Oct 02, 2025, 07:18 PM UTC
Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 60 minutes. Customer experience: Customers hosted in the specified regions may intermittently experience degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, and Snowflake Copilot.
- investigating Oct 02, 2025, 07:22 PM UTC
We are continuing to investigate this issue.
- investigating Oct 02, 2025, 07:46 PM UTC
Current status: We're investigating connection issues within our service infrastructure to determine the source of the issue and develop a mitigation plan. We'll provide an update within 60 minutes. ETA: ETA is not yet available. We'll provide one as soon as possible. Customer experience: Customers hosted in the specified regions may intermittently experience degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, Snowflake Copilot, Cortex Agent API and Snowflake Intelligence.
- investigating Oct 02, 2025, 08:44 PM UTC
Current status: We're continuing to narrow our investigation, focusing on connection issues and request failures within our service infrastructure. We'll provide an update within 60 minutes. ETA: ETA is not yet available. We'll provide one as soon as possible. Customer experience: Customers hosted in the specified regions may intermittently experience degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, Snowflake Copilot, Cortex Agent API and Snowflake Intelligence. Users may receive a 500 error upon failed requests. Workaround: There are currently no available workarounds for this issue. Incident start time: 18:05 UTC October 02, 2025
- identified Oct 02, 2025, 09:26 PM UTC
Current status: We have identified a configuration issue that prevents service components from establishing successful sessions, resulting in connection failures. We're updating the configuration to resolve the issue. Customer experience: Customers hosted in the specified regions may intermittently experience degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, Snowflake Copilot, Cortex Agent API and Snowflake Intelligence. Users may receive a 500 error upon failed requests. ETA: We anticipate that customers should start to experience recovery within the next 30 minutes. Workaround: There are currently no available workarounds for this issue. Incident start time: 18:05 UTC October 02, 2025
- monitoring Oct 02, 2025, 09:51 PM UTC
Current status: We've completed updating the configuration and verified that it has mitigated the impact. We'll continue to monitor the environment to ensure all services continue functioning properly. Customer experience: Customers hosted in the specified regions may have intermittently experienced degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, Snowflake Copilot, Cortex Agent API, and Snowflake Intelligence. Users may have received a 500 error upon failed requests. Incident start time: 18:05 UTC October 02, 2025 Incident end time: 21:28 UTC October 02, 2025 Preliminary root cause: A configuration issue prevented service components from establishing successful sessions, resulting in connection failures and customer impact.
- resolved Oct 02, 2025, 10:14 PM UTC
Current status: We've monitored the environment and confirmed that the service has been restored. If you experience additional issues or have questions, please open a support case via Snowflake Community. Customer experience: Customers hosted in the specified regions may have intermittently experienced degraded performance or failures when executing SQL queries leveraging Cortex services and features, such as Snowflake Cortex AISQL, Cortex REST API, Cortex Analyst, Snowflake Copilot, Cortex Agent API, and Snowflake Intelligence. Users may have received a 500 error upon failed requests. Incident start time: 18:05 UTC October 02, 2025 Incident end time: 21:28 UTC October 02, 2025 Preliminary root cause: A configuration issue prevented service components from establishing successful sessions, resulting in connection failures and customer impact. A root cause analysis (RCA) document will be published within five business days.
- postmortem Oct 09, 2025, 08:36 PM UTC
Snowflake Engineering has completed the postmortem of this service incident. A detailed Root Cause Analysis \(RCA\) is available on the Snowflake Community site: [https://community.snowflake.com/s/article/INC0144309](https://community.snowflake.com/s/article/INC0144309)