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Identified - Since ~07:00 PT / ~14:00 UTC Claude Sonnet 4 has had limited availability in the Message Batches API. Batches using this model will take longer to complete and are more likely to reach their 24h expiration.
Jul 24, 2025 - 00:50 UTC
Jul 24, 2025 - 00:50 UTC
Uptime over the past 90 days. View historical uptime.
claude.ai
Operational
90 days ago
99.16
% uptime
Today
console.anthropic.com
Operational
90 days ago
99.47
% uptime
Today
api.anthropic.com
Degraded Performance
90 days ago
99.55
% uptime
Today
Claude Code
Operational
90 days ago
99.69
% uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Related
No incidents or maintenance related to this downtime.
Past Incidents
Jul 24, 2025
Unresolved incident: Batches API limited availability for Claude Sonnet 4.
Jul 23, 2025
Resolved -
This incident has been resolved.
Jul 23, 23:11 UTC
Jul 23, 23:11 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 23, 22:47 UTC
Jul 23, 22:47 UTC
Update -
We are investigating an issue that started at 14:40 PT / 21:40 UTC affecting Claude 4 Opus and the Claude 3.5 Sonnet New models, and starting at 15:10 PT/ 22:10 UTC affecting Claude 4 Sonnet and Claude Sonnet 3.7.
Jul 23, 21:49 UTC
Jul 23, 21:49 UTC
Investigating -
We are currently investigating this issue.
Jul 23, 21:48 UTC
Jul 23, 21:48 UTC
Resolved -
The issue has been mitigated as of 12:28 PT / 19:28 UTC.
Jul 23, 19:34 UTC
Jul 23, 19:34 UTC
Investigating -
We are investigating errors on Claude 4 Sonnet starting from 12:07 PT / 19:07 UTC.
Jul 23, 19:21 UTC
Jul 23, 19:21 UTC
Resolved -
This incident has been resolved.
Jul 23, 17:51 UTC
Jul 23, 17:51 UTC
Update -
This issue has been resolved
Jul 23, 17:50 UTC
Jul 23, 17:50 UTC
Update -
We are continuing to monitor for any further issues.
Jul 23, 17:50 UTC
Jul 23, 17:50 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 23, 17:45 UTC
Jul 23, 17:45 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 23, 17:16 UTC
Jul 23, 17:16 UTC
Investigating -
We are investigating errors in which MCP tool calls return the error "Error executing code: Cannot convert undefined or null to object".
Jul 23, 16:27 UTC
Jul 23, 16:27 UTC
Resolved -
We've seen two big spikes of errors, one between 13:05 UTC and 13:24 UTC, and another one between 13:50 UTC and 14:18 UTC. The issue has now been resolved.
Jul 23, 14:43 UTC
Jul 23, 14:43 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 23, 13:26 UTC
Jul 23, 13:26 UTC
Investigating -
We are investigating an issue on Claude 4 Sonnet that started at 6:04 PT / 13:04 UTC.
Jul 23, 13:20 UTC
Jul 23, 13:20 UTC
Resolved -
We have mitigated the issue as of 2:15 PT / 9:15 UTC.
Jul 23, 09:26 UTC
Jul 23, 09:26 UTC
Investigating -
Since 2:06 PT / 9:06 UTC we've seen an increase in errors on Claude 4 Sonnet
Jul 23, 09:13 UTC
Jul 23, 09:13 UTC
Resolved -
As of 6:39 UTC / 23:39 PT we have mitigated the issue.
Jul 23, 06:45 UTC
Jul 23, 06:45 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 23, 06:21 UTC
Jul 23, 06:21 UTC
Investigating -
We've seen elevated errors on Claude 4 Sonnet starting from 6:00 UTC / 23:00 PT.
Jul 23, 06:16 UTC
Jul 23, 06:16 UTC
Jul 22, 2025
Resolved -
This incident has been resolved.
Jul 22, 20:33 UTC
Jul 22, 20:33 UTC
Update -
We are continuing to monitor for any further issues.
Jul 22, 20:32 UTC
Jul 22, 20:32 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 22, 17:53 UTC
Jul 22, 17:53 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 22, 17:26 UTC
Jul 22, 17:26 UTC
Update -
We are continuing to investigate this issue.
Jul 22, 13:34 UTC
Jul 22, 13:34 UTC
Investigating -
We are currently investigating this issue.
Jul 22, 13:30 UTC
Jul 22, 13:30 UTC
Resolved -
This incident has been resolved.
Jul 22, 19:16 UTC
Jul 22, 19:16 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 22, 18:44 UTC
Jul 22, 18:44 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 22, 18:33 UTC
Jul 22, 18:33 UTC
Investigating -
We are currently investigating this issue.
Jul 22, 18:09 UTC
Jul 22, 18:09 UTC
Jul 21, 2025
Resolved -
This incident has been resolved.
Jul 21, 23:00 UTC
Jul 21, 23:00 UTC
Investigating -
The issue has been identified and we are investigating
Jul 21, 22:45 UTC
Jul 21, 22:45 UTC
Resolved -
This incident has been resolved.
Jul 21, 21:18 UTC
Jul 21, 21:18 UTC
Investigating -
We are currently investigating this issue.
Jul 21, 20:55 UTC
Jul 21, 20:55 UTC
Resolved -
As of 08:52 UTC we have full recovery for the Claude 4 Sonnet model
Jul 21, 08:57 UTC
Jul 21, 08:57 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 21, 08:44 UTC
Jul 21, 08:44 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 21, 08:13 UTC
Jul 21, 08:13 UTC
Update -
We are continuing to investigate this issue.
Jul 21, 07:23 UTC
Jul 21, 07:23 UTC
Investigating -
We are currently investigating an issue with Claude 4 Sonnet that started at 6:15 UTC.
Jul 21, 07:12 UTC
Jul 21, 07:12 UTC
Jul 20, 2025
No incidents reported.
Jul 19, 2025
No incidents reported.
Jul 18, 2025
Resolved -
This incident has been resolved.
Jul 18, 21:50 UTC
Jul 18, 21:50 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 18, 21:40 UTC
Jul 18, 21:40 UTC
Investigating -
We are currently investigating elevated errors on requests to Claude 4 Opus via Claude Code
Jul 18, 21:15 UTC
Jul 18, 21:15 UTC
Resolved -
This incident has been resolved.
Jul 18, 17:09 UTC
Jul 18, 17:09 UTC
Update -
We are continuing to work on a fix for this issue.
Jul 18, 03:23 UTC
Jul 18, 03:23 UTC
Identified -
We have identified the cause of the issue affecting connecting to Claude.ai Connectors. We are deploying a fix. We will provide a further update shortly.
Jul 17, 23:29 UTC
Jul 17, 23:29 UTC
Jul 17, 2025
Resolved -
This incident has been resolved.
Jul 17, 21:34 UTC
Jul 17, 21:34 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 17, 21:25 UTC
Jul 17, 21:25 UTC
Update -
We are continuing to investigate this issue.
Jul 17, 21:13 UTC
Jul 17, 21:13 UTC
Update -
We are continuing to investigate this issue.
Jul 17, 21:13 UTC
Jul 17, 21:13 UTC
Investigating -
We are currently investigating elevated errors on requests to Claude Sonnet (all models) on the API, Claude.ai, and the Anthropic Console.
Jul 17, 21:13 UTC
Jul 17, 21:13 UTC
Resolved -
This incident has been resolved.
Jul 17, 05:33 UTC
Jul 17, 05:33 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 17, 05:04 UTC
Jul 17, 05:04 UTC
Investigating -
We are currently investigating this issue.
Jul 17, 04:48 UTC
Jul 17, 04:48 UTC
Jul 16, 2025
Resolved -
This incident has been resolved.
Jul 16, 15:55 UTC
Jul 16, 15:55 UTC
Identified -
We are currently investigating elevated errors on requests to Claude 4 Opus and Sonnet on the API, Claude.ai, and the Anthropic Console.
Jul 16, 14:01 UTC
Jul 16, 14:01 UTC
Resolved -
This incident has been resolved.
Jul 16, 08:43 UTC
Jul 16, 08:43 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 16, 07:56 UTC
Jul 16, 07:56 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 16, 07:27 UTC
Jul 16, 07:27 UTC
Investigating -
We are currently investigating this issue.
Jul 16, 06:12 UTC
Jul 16, 06:12 UTC
Jul 15, 2025
Resolved -
This incident has been resolved.
Jul 15, 17:00 UTC
Jul 15, 17:00 UTC
Update -
We are continuing to monitor for any further issues.
Jul 15, 16:08 UTC
Jul 15, 16:08 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 15, 15:59 UTC
Jul 15, 15:59 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 15, 15:01 UTC
Jul 15, 15:01 UTC
Investigating -
Sonnet 4 has been sending elevated errors since 13:05 UTC. We are currently investigating this issue.
Jul 15, 13:05 UTC
Jul 15, 13:05 UTC
Resolved -
This incident has been resolved.
Jul 15, 12:58 UTC
Jul 15, 12:58 UTC
Investigating -
We've observed intermittent elevated error rates on Claude 4 Opus since 10AM UTC. We are currently investigating the issue.
Jul 15, 12:35 UTC
Jul 15, 12:35 UTC
Resolved -
This incident has been resolved.
Jul 15, 12:31 UTC
Jul 15, 12:31 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 15, 10:06 UTC
Jul 15, 10:06 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 15, 09:57 UTC
Jul 15, 09:57 UTC
Update -
We are continuing to investigate this issue.
Jul 15, 09:38 UTC
Jul 15, 09:38 UTC
Investigating -
We are currently investigating this issue.
Jul 15, 09:37 UTC
Jul 15, 09:37 UTC
Jul 14, 2025
Resolved -
This incident has been resolved.
Jul 14, 00:22 UTC
Jul 14, 00:22 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 13, 23:39 UTC
Jul 13, 23:39 UTC
Jul 13, 2025
Jul 12, 2025
Resolved -
This incident has been resolved.
Jul 12, 04:23 UTC
Jul 12, 04:23 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 12, 04:18 UTC
Jul 12, 04:18 UTC
Investigating -
We are currently investigating elevated errors on requests to Claude 3.5 Sonnet on the API, Claude.ai, and the Anthropic Console.
Jul 12, 03:57 UTC
Jul 12, 03:57 UTC
Jul 11, 2025
No incidents reported.
Jul 10, 2025
Resolved -
This incident has been resolved.
Jul 10, 20:50 UTC
Jul 10, 20:50 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 10, 20:22 UTC
Jul 10, 20:22 UTC
Resolved -
The incident occurred between 15:33 UTC and 15:50 UTC. We have now mitigated it.
Jul 10, 15:57 UTC
Jul 10, 15:57 UTC
Investigating -
We are currently investigating this issue.
Jul 10, 15:44 UTC
Jul 10, 15:44 UTC
Resolved -
As of 15:15 UTC the errors on the Claude 4 Sonnet model have returned to baseline.
Jul 10, 15:27 UTC
Jul 10, 15:27 UTC
Investigating -
We are currently investigating this issue.
Jul 10, 13:35 UTC
Jul 10, 13:35 UTC
Resolved -
As of 8:25 UTC the level of errors on Claude 4 Sonnet is at the baseline. Claude 4 Opus also had an uptick in errors between 7:25 UTC and 7:43 UTC, but that has also recovered.
Jul 10, 08:35 UTC
Jul 10, 08:35 UTC
Identified -
The issue has been identified and a fix is being implemented.
Jul 10, 07:27 UTC
Jul 10, 07:27 UTC
Investigating -
We are currently investigating an issue where Claude 4 Sonnet has had an elevated error rate since 6:05 UTC.
Jul 10, 06:34 UTC
Jul 10, 06:34 UTC
Resolved -
This incident has been resolved.
Jul 10, 02:45 UTC
Jul 10, 02:45 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Jul 10, 02:04 UTC
Jul 10, 02:04 UTC
Investigating -
We are currently investigating this issue.
Jul 10, 01:52 UTC
Jul 10, 01:52 UTC
Resolved -
From 08:45 UTC on July 8th to 02:00 UTC on July 10th, Claude Sonnet 4 experienced a degradation in quality for some requests. Users, especially tool use and Claude Code users, would have seen lower intelligence responses and malformed tool calls.
This was caused by a rollout of our inference stack, which we have since rolled back. While we often make changes intended to improve the efficiency and throughput of our models, our intention is always to retain the same model response quality.
Jul 10, 02:00 UTC
This was caused by a rollout of our inference stack, which we have since rolled back. While we often make changes intended to improve the efficiency and throughput of our models, our intention is always to retain the same model response quality.
Jul 10, 02:00 UTC