← Current Status
Anthropic

Anthropic

OPERATIONAL

Status Page

https://status.anthropic.com/

Last 30 Days

17 incidents
December 27, 2025
No incidents reported
December 28, 2025
No incidents reported
December 29, 2025
No incidents reported
December 30, 2025
No incidents reported
December 31, 2025
No incidents reported
January 01, 2026
No incidents reported
January 02, 2026
No incidents reported
January 03, 2026
No incidents reported
January 04, 2026
No incidents reported
January 05, 2026
No incidents reported
January 06, 2026
No incidents reported
January 07, 2026
09:09 UTC
Elevated error rates on Opus 4.5
19:07 UTC
Claude subscription usage limits not visible in Claude.ai and Claude Code
January 08, 2026
17:23 UTC
Increased latency on Sonnet 4.5
January 09, 2026
19:41 UTC
New Subscription Activation & Payment Issues
January 10, 2026
03:37 UTC
Degraded performance for API requests involving structured outputs.
14:33 UTC
Elevated error rates on Sonnet 4.5 1M context
January 11, 2026
No incidents reported
January 12, 2026
18:10 UTC
Elevated rate of errors for multiple models
19:21 UTC
Increased rate of errors for Opus 4.5
January 13, 2026
07:27 UTC
Increased rate of errors for Opus 4.5
January 14, 2026
08:34 UTC
Elevated error rates on Opus 4.5 and Sonnet 4.5
January 15, 2026
07:28 UTC
Compaction is having issues
January 16, 2026
No incidents reported
January 17, 2026
No incidents reported
January 18, 2026
No incidents reported
January 19, 2026
No incidents reported
January 20, 2026
16:41 UTC
Elevated errors on Claude Opus 4.5 and Sonnet 4.5
January 21, 2026
14:44 UTC
Elevated errors on Claude Sonnet 4.5
January 22, 2026
16:06 UTC
Elevated errors on claude.ai
16:22 UTC
Claude Code Authentication Issues
22:19 UTC
Elevated error rates on claude.ai and API
January 23, 2026
05:09 UTC
Elevated errors: Invalid `signature` in `thinking` block
January 24, 2026
No incidents reported
January 25, 2026
No incidents reported

Incidents in the last 30 days

Elevated errors: Invalid `signature` in `thinking` block

The issue has been identified and fix is being implemented.

Anthropic
• Started 2 days ago • Resolved in about 3 hours

Elevated error rates on claude.ai and API

We are currently investigating this issue.

Anthropic
• Started 2 days ago • Resolved in 7 minutes

Claude Code Authentication Issues

We are currently investigating an issue affecting Claude Code authentication. Users may encounter errors when attempting to sign in or authenticate their Claude Code sessions.

Anthropic
• Started 3 days ago • Resolved in 32 minutes

Elevated errors on claude.ai

We are currently investigating this issue.

Anthropic
• Started 3 days ago • Resolved in 43 minutes

Elevated errors on Claude Sonnet 4.5

We are currently investigating this issue.

Anthropic
• Started 4 days ago • Resolved in about 1 hour

Elevated errors on Claude Opus 4.5 and Sonnet 4.5

We are currently investigating this issue.

Anthropic
• Started 5 days ago • Resolved in about 1 hour

Compaction is having issues

The issue has been identified and a fix is being implemented.

Anthropic
• Started 10 days ago • Resolved in about 10 hours

Elevated error rates on Opus 4.5 and Sonnet 4.5

We are currently investigating this issue.

Anthropic
• Started 11 days ago • Resolved in about 6 hours

Increased rate of errors for Opus 4.5

We are currently investigating this issue.

Anthropic
• Started 12 days ago • Resolved in 25 minutes

Increased rate of errors for Opus 4.5

We are currently investigating this issue.

Anthropic
• Started 12 days ago • Resolved in about 1 hour

Elevated rate of errors for multiple models

We are currently investigating this issue.

Anthropic
• Started 12 days ago • Resolved in about 2 hours

Elevated error rates on Sonnet 4.5 1M context

We are currently investigating this issue.

Anthropic
• Started 15 days ago • Resolved in about 1 hour

Degraded performance for API requests involving structured outputs.

We are currently investigating a performance issue affecting API requests that use structured outputs and strict tool use.

Anthropic
• Started 15 days ago • Resolved in about 3 hours

New Subscription Activation & Payment Issues

We are investigating reports that some new customer subscriptions are charging customers without properly granting subscription access, which is also leading to accidental double or triple payments for some customers.

Anthropic
• Started 15 days ago • Resolved in about 9 hours

Increased latency on Sonnet 4.5

We are currently investigating this issue.

Anthropic
• Started 17 days ago • Resolved in about 5 hours

Claude subscription usage limits not visible in Claude.ai and Claude Code

We are currently investigating this issue.

Anthropic
• Started 17 days ago • Resolved in about 10 hours

Elevated error rates on Opus 4.5

We are currently investigating this issue.

Anthropic
• Started 18 days ago • Resolved in about 1 hour