Claude API outage history

Past incidents recorded on Claude API's official status page — start time, duration, severity and the official link (depth available varies by provider).

1. Partial outageDuration: 2h 57m
   Elevated errors for multiple models
   Started: Sep 3, 2026, 10:26 PM・ Resolved: Sep 4, 2026, 01:23 AM・ Official details ↗
2. Partial outageDuration: 19m
   Elevated errors for Claude Sonnet 5
   Started: Sep 3, 2026, 09:37 PM・ Resolved: Sep 3, 2026, 09:56 PM・ Official details ↗
3. Partial outageDuration: 26m
   Elevated errors for Claude Sonnet 5
   Started: Sep 3, 2026, 06:17 AM・ Resolved: Sep 3, 2026, 06:44 AM・ Official details ↗
4. Partial outageDuration: 3h 24m
   Elevated errors for multiple models
   Started: Aug 24, 2026, 02:06 PM・ Resolved: Aug 24, 2026, 05:30 PM・ Official details ↗
5. Partial outageDuration: 26m
   Elevated errors on requests to multiple models
   Started: Aug 21, 2026, 04:16 AM・ Resolved: Aug 21, 2026, 04:42 AM・ Official details ↗
6. DegradedDuration: 1h 20m

   Degraded performance for Claude Opus 5 and Claude Haiku 4.5

   Started: Aug 19, 2026, 06:42 PM・ Resolved: Aug 19, 2026, 08:02 PM・ Official details ↗
7. DegradedDuration: 2h 41m

   Degraded performance for multiple models

   Started: Aug 19, 2026, 01:20 AM・ Resolved: Aug 19, 2026, 04:01 AM・ Official details ↗
8. DegradedDuration: 1h 33m

   Degraded performance for Claude Opus 5, Claude Sonnet 5

   Started: Aug 17, 2026, 10:56 PM・ Resolved: Aug 18, 2026, 12:29 AM・ Official details ↗
9. Partial outageDuration: 1h 35m
   Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5
   Started: Aug 13, 2026, 11:33 PM・ Resolved: Aug 14, 2026, 01:08 AM・ Official details ↗
10. DegradedDuration: 4h 17m

    Degraded performance for multiple models

    Started: Aug 12, 2026, 10:50 PM・ Resolved: Aug 13, 2026, 03:07 AM・ Official details ↗
11. DegradedDuration: 43m

    Degraded performance for Claude Opus 5

    Started: Aug 5, 2026, 10:51 PM・ Resolved: Aug 5, 2026, 11:34 PM・ Official details ↗
12. DegradedDuration: 7h 9m

    Degraded performance of multiple models

    Started: Aug 5, 2026, 04:05 PM・ Resolved: Aug 5, 2026, 11:14 PM・ Official details ↗
13. Partial outageDuration: 1h 11m
    Elevated errors across many models
    Started: Aug 5, 2026, 05:48 AM・ Resolved: Aug 5, 2026, 06:59 AM・ Official details ↗
14. DegradedDuration: 25m

    Elevated errors on Claude Sonnet 5

    Started: Aug 4, 2026, 08:27 PM・ Resolved: Aug 4, 2026, 08:52 PM・ Official details ↗
15. DegradedDuration: 39m

    Elevated errors on Claude Sonnet 5

    Started: Aug 4, 2026, 03:16 PM・ Resolved: Aug 4, 2026, 03:55 PM・ Official details ↗
16. DegradedDuration: 15m

    Degraded performance on Claude Sonnet 5

    Started: Aug 4, 2026, 12:13 AM・ Resolved: Aug 4, 2026, 12:29 AM・ Official details ↗
17. DegradedDuration: 1h 24m

    Error rates across multiple models

    Started: Aug 3, 2026, 09:52 PM・ Resolved: Aug 3, 2026, 11:17 PM・ Official details ↗
18. DegradedDuration: 47m

    Degraded performance on Claude Sonnet 5

    Started: Jul 31, 2026, 03:18 PM・ Resolved: Jul 31, 2026, 04:04 PM・ Official details ↗
19. DegradedDuration: 41m

    Degraded performance on Claude Opus 4.8

    Started: Jul 30, 2026, 10:43 PM・ Resolved: Jul 30, 2026, 11:24 PM・ Official details ↗
20. Partial outageDuration: 4h 51m
    Elevated errors across many models
    Started: Jul 30, 2026, 02:57 PM・ Resolved: Jul 30, 2026, 07:48 PM・ Official details ↗
21. Major outageDuration: 2h 47m
    Elevated errors across all models
    Started: Jul 30, 2026, 04:49 AM・ Resolved: Jul 30, 2026, 07:36 AM・ Official details ↗
22. DegradedDuration: 57m

    Elevated errors on Claude Opus 5 and Haiku 4.5

    Started: Jul 27, 2026, 10:39 PM・ Resolved: Jul 27, 2026, 11:36 PM・ Official details ↗
23. DegradedDuration: 1h 3m

    Elevated errors on Claude Opus 5

    Started: Jul 27, 2026, 08:27 PM・ Resolved: Jul 27, 2026, 09:30 PM・ Official details ↗
24. DegradedDuration: 48m

    Elevated errors on Claude Opus 5

    Started: Jul 27, 2026, 05:16 PM・ Resolved: Jul 27, 2026, 06:05 PM・ Official details ↗
25. Partial outageDuration: 1h 27m
    Elevated errors for Opus 5
    Started: Jul 26, 2026, 06:17 PM・ Resolved: Jul 26, 2026, 07:44 PM・ Official details ↗
26. Partial outageDuration: 34m
    Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models
    Started: Jul 26, 2026, 06:34 AM・ Resolved: Jul 26, 2026, 07:08 AM・ Official details ↗
27. Partial outageDuration: 1h 4m
    Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5
    Started: Jul 26, 2026, 03:40 AM・ Resolved: Jul 26, 2026, 04:44 AM・ Official details ↗
28. OperationalDuration: —

    Sonnet 4.6 and Sonnet 5 errors elevated

    Started: Jul 26, 2026, 03:14 AM・ Resolved: Jul 26, 2026, 03:13 AM・ Official details ↗
29. DegradedDuration: 1h 12m

    Elevated error rate on Opus 4.8

    Started: Jul 24, 2026, 06:09 PM・ Resolved: Jul 24, 2026, 07:22 PM・ Official details ↗
30. DegradedDuration: 17m

    Elevated errors on Haiku 4.5

    Started: Jul 23, 2026, 08:52 AM・ Resolved: Jul 23, 2026, 09:10 AM・ Official details ↗
31. DegradedDuration: 48m

    Elevated error rates for Sonnet 5

    Started: Jul 23, 2026, 12:24 AM・ Resolved: Jul 23, 2026, 01:12 AM・ Official details ↗
32. DegradedDuration: 1h 46m

    Elevated errors on Opus 4.8 and Haiku 4.5

    Started: Jul 22, 2026, 10:37 PM・ Resolved: Jul 23, 2026, 12:23 AM・ Official details ↗
33. DegradedDuration: 26m

    Elevated errors for Claude Opus 4.1

    Started: Jul 22, 2026, 05:34 PM・ Resolved: Jul 22, 2026, 06:00 PM・ Official details ↗
34. Major outageDuration: 2h 44m
    Elevated errors on several models
    Started: Jul 22, 2026, 12:35 AM・ Resolved: Jul 22, 2026, 03:18 AM・ Official details ↗
35. Partial outageDuration: 3h 34m
    Elevated errors on Haiku 4.5
    Started: Jul 21, 2026, 10:04 PM・ Resolved: Jul 22, 2026, 01:38 AM・ Official details ↗
36. DegradedDuration: 1h 8m

    Elevated errors across models

    Started: Jul 21, 2026, 07:11 PM・ Resolved: Jul 21, 2026, 08:18 PM・ Official details ↗
37. DegradedDuration: 1h 41m

    Elevated errors on Haiku 4.5

    Started: Jul 21, 2026, 04:11 PM・ Resolved: Jul 21, 2026, 05:53 PM・ Official details ↗
38. DegradedDuration: 1h 35m

    Elevated errors for Claude Opus 4.8

    Started: Jul 20, 2026, 11:41 PM・ Resolved: Jul 21, 2026, 01:16 AM・ Official details ↗
39. DegradedDuration: 2h 20m

    Elevated errors on Haiku 4.5

    Started: Jul 20, 2026, 10:20 PM・ Resolved: Jul 21, 2026, 12:41 AM・ Official details ↗
40. DegradedDuration: 5h 44m

    Elevated error rates for Opus 4.5

    Started: Jul 20, 2026, 04:03 PM・ Resolved: Jul 20, 2026, 09:48 PM・ Official details ↗
41. Partial outageDuration: 15m
    Elevated error rates for Sonnet 5
    Started: Jul 18, 2026, 03:12 AM・ Resolved: Jul 18, 2026, 03:27 AM・ Official details ↗
42. DegradedDuration: 36m

    Elevated errors for Claude Opus 4.8

    Started: Jul 17, 2026, 11:57 PM・ Resolved: Jul 18, 2026, 12:33 AM・ Official details ↗
43. DegradedDuration: 5h 34m

    Elevated errors on Sonnet 5 and Haiku 4.5

    Started: Jul 17, 2026, 03:47 PM・ Resolved: Jul 17, 2026, 09:21 PM・ Official details ↗
44. Partial outageDuration: 4h 16m
    Elevated errors for multiple models
    Started: Jul 17, 2026, 03:36 AM・ Resolved: Jul 17, 2026, 07:53 AM・ Official details ↗
45. DegradedDuration: 4h 33m

    Elevated errors for Claude Opus 4.7

    Started: Jul 16, 2026, 05:58 PM・ Resolved: Jul 16, 2026, 10:30 PM・ Official details ↗
46. DegradedDuration: 15m

    Elevated errors on Claude Sonnet 5

    Started: Jul 16, 2026, 05:39 PM・ Resolved: Jul 16, 2026, 05:53 PM・ Official details ↗
47. DegradedDuration: 1h 7m

    Elevated errors on multiple models

    Started: Jul 15, 2026, 11:04 PM・ Resolved: Jul 16, 2026, 12:11 AM・ Official details ↗
48. DegradedDuration: 40m

    Elevated errors on Claude Haiku 4.5

    Started: Jul 13, 2026, 11:44 PM・ Resolved: Jul 14, 2026, 12:24 AM・ Official details ↗
49. OperationalDuration: —

    Elevated errors for Claude Opus 4.5 and Claude Sonnet 4.5

    Started: Jul 11, 2026, 01:38 AM・ Resolved: Jul 10, 2026, 10:00 PM・ Official details ↗
50. DegradedDuration: 26m

    Elevated errors for Claude Opus 4.8

    Started: Jul 10, 2026, 11:36 PM・ Resolved: Jul 11, 2026, 12:02 AM・ Official details ↗
51. Partial outageDuration: 22m
    Elevated errors for Claude Opus 4.8
    Started: Jul 9, 2026, 12:28 PM・ Resolved: Jul 9, 2026, 12:50 PM・ Official details ↗
52. DegradedDuration: 3h 4m

    Elevated errors on multiple models

    Started: Jul 9, 2026, 03:00 AM・ Resolved: Jul 9, 2026, 06:04 AM・ Official details ↗
53. DegradedDuration: 14m

    Elevated errors on Claude Sonnet 5

    Started: Jul 8, 2026, 03:26 PM・ Resolved: Jul 8, 2026, 03:40 PM・ Official details ↗
54. Partial outageDuration: 3h 44m
    Elevated errors for some models
    Started: Jul 8, 2026, 05:02 AM・ Resolved: Jul 8, 2026, 08:46 AM・ Official details ↗
55. DegradedDuration: 39m

    Elevated errors on Claude Sonnet 5

    Started: Jul 7, 2026, 03:58 PM・ Resolved: Jul 7, 2026, 04:37 PM・ Official details ↗
56. DegradedDuration: 1h 37m

    Elevated errors on several models

    Started: Jul 6, 2026, 04:36 PM・ Resolved: Jul 6, 2026, 06:13 PM・ Official details ↗
57. DegradedDuration: 38m

    Elevated errors across many models

    Started: Jul 4, 2026, 08:42 AM・ Resolved: Jul 4, 2026, 09:20 AM・ Official details ↗
58. DegradedDuration: 41m

    Elevated errors on Claude Opus 4.8

    Started: Jul 2, 2026, 09:38 AM・ Resolved: Jul 2, 2026, 10:19 AM・ Official details ↗
59. DegradedDuration: 57m

    Elevated error rates on Opus 4.8

    Started: Jun 30, 2026, 11:31 PM・ Resolved: Jul 1, 2026, 12:28 AM・ Official details ↗
60. DegradedDuration: 52m

    Elevated errors on Opus 4.5

    Started: Jun 29, 2026, 10:35 PM・ Resolved: Jun 29, 2026, 11:27 PM・ Official details ↗
61. OperationalDuration: —

    elevated errors on Opus 48

    Started: Jun 28, 2026, 03:23 AM・ Resolved: Jun 28, 2026, 03:00 AM・ Official details ↗
62. OperationalDuration: 11m

    Elevated errors on Opus 4.8 Fast

    Started: Jun 25, 2026, 03:22 AM・ Resolved: Jun 25, 2026, 03:33 AM・ Official details ↗
63. DegradedDuration: 1h 40m

    Elevated error rate on Claude Opus 4.8

    Started: Jun 24, 2026, 10:16 PM・ Resolved: Jun 24, 2026, 11:56 PM・ Official details ↗
64. Major outageDuration: 2h 25m
    Elevated error rate across multiple models
    Started: Jun 23, 2026, 11:19 PM・ Resolved: Jun 24, 2026, 01:44 AM・ Official details ↗
65. DegradedDuration: 2h 17m

    Elevated errors for Claude Opus 4.8

    Started: Jun 23, 2026, 03:28 PM・ Resolved: Jun 23, 2026, 05:45 PM・ Official details ↗
66. DegradedDuration: 31m

    Elevated errors across many models

    Started: Jun 23, 2026, 04:14 AM・ Resolved: Jun 23, 2026, 04:45 AM・ Official details ↗
67. DegradedDuration: 6h 32m

    Elevated errors for Claude Opus 4.8

    Started: Jun 22, 2026, 05:11 PM・ Resolved: Jun 22, 2026, 11:44 PM・ Official details ↗
68. Partial outageDuration: 1h 30m
    Elevated Error Rates for Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5
    Started: Jun 22, 2026, 09:37 AM・ Resolved: Jun 22, 2026, 11:06 AM・ Official details ↗
69. DegradedDuration: 55m

    Opus 4.8 errors

    Started: Jun 21, 2026, 02:07 AM・ Resolved: Jun 21, 2026, 03:02 AM・ Official details ↗
70. DegradedDuration: 28m

    Elevated error rates on the Claude API

    Started: Jun 19, 2026, 05:17 PM・ Resolved: Jun 19, 2026, 05:45 PM・ Official details ↗
71. DegradedDuration: 1h 10m

    Elevated errors for Claude Opus 4.8

    Started: Jun 19, 2026, 03:07 PM・ Resolved: Jun 19, 2026, 04:17 PM・ Official details ↗
72. DegradedDuration: 54m

    Elevated errors for Claude Opus 4.8

    Started: Jun 18, 2026, 12:34 AM・ Resolved: Jun 18, 2026, 01:28 AM・ Official details ↗
73. DegradedDuration: 1h 39m

    Elevated errors for Claude Opus 4.8

    Started: Jun 17, 2026, 05:24 PM・ Resolved: Jun 17, 2026, 07:03 PM・ Official details ↗
74. DegradedDuration: 1h 29m

    Elevated errors for Claude Opus 4.8

    Started: Jun 17, 2026, 02:08 PM・ Resolved: Jun 17, 2026, 03:37 PM・ Official details ↗
75. DegradedDuration: 2h 3m

    Elevated errors on Claude Sonnet 4.6 and Opus 4.8

    Started: Jun 17, 2026, 09:47 AM・ Resolved: Jun 17, 2026, 11:50 AM・ Official details ↗
76. Partial outageDuration: 1h 13m
    Elevated errors for Claude Opus 4.8
    Started: Jun 17, 2026, 05:50 AM・ Resolved: Jun 17, 2026, 07:02 AM・ Official details ↗
77. OperationalDuration: 17m

    Opus 4.8 errors

    Started: Jun 17, 2026, 04:59 AM・ Resolved: Jun 17, 2026, 05:16 AM・ Official details ↗
78. DegradedDuration: 2h 3m

    Elevated errors across many models

    Started: Jun 17, 2026, 02:29 AM・ Resolved: Jun 17, 2026, 04:32 AM・ Official details ↗
79. DegradedDuration: 2h 36m

    Elevated errors on Claude Opus 4.8

    Started: Jun 15, 2026, 03:20 PM・ Resolved: Jun 15, 2026, 05:56 PM・ Official details ↗
80. DegradedDuration: 9m

    Elevated errors on Claude Opus 4.8

    Started: Jun 13, 2026, 11:03 AM・ Resolved: Jun 13, 2026, 11:11 AM・ Official details ↗
81. Partial outageDuration: 1h 1m
    Elevated errors across models
    Started: Jun 12, 2026, 01:54 AM・ Resolved: Jun 12, 2026, 02:56 AM・ Official details ↗
82. DegradedDuration: 25m

    Elevated errors on Claude Opus 4.6

    Started: Jun 11, 2026, 11:37 PM・ Resolved: Jun 12, 2026, 12:01 AM・ Official details ↗
83. DegradedDuration: 4h 15m

    Elevated errors on Claude Haiku 4.5

    Started: Jun 10, 2026, 10:06 PM・ Resolved: Jun 11, 2026, 02:21 AM・ Official details ↗
84. DegradedDuration: 1h 38m

    Elevated errors on Claude Opus 4.6

    Started: Jun 10, 2026, 05:32 AM・ Resolved: Jun 10, 2026, 07:10 AM・ Official details ↗
85. Partial outageDuration: 2h 39m
    Fable not available in the model picker in Claude Code Desktop
    Started: Jun 10, 2026, 03:24 AM・ Resolved: Jun 10, 2026, 06:03 AM・ Official details ↗
86. DegradedDuration: 29m

    Elevated errors on Claude Opus 4.8 (Fast Mode)

    Started: Jun 9, 2026, 12:13 PM・ Resolved: Jun 9, 2026, 12:42 PM・ Official details ↗
87. DegradedDuration: 16m

    Elevated errors on Claude Opus 4.8

    Started: Jun 9, 2026, 07:20 AM・ Resolved: Jun 9, 2026, 07:36 AM・ Official details ↗
88. DegradedDuration: 51m

    Elevated errors on Claude Opus 4.7

    Started: Jun 9, 2026, 06:05 AM・ Resolved: Jun 9, 2026, 06:56 AM・ Official details ↗
89. DegradedDuration: 41m

    Elevated errors on Claude Haiku 4.5

    Started: Jun 9, 2026, 04:10 AM・ Resolved: Jun 9, 2026, 04:52 AM・ Official details ↗
90. DegradedDuration: 2h 7m

    Elevated errors on Claude Opus 4.7

    Started: Jun 9, 2026, 02:15 AM・ Resolved: Jun 9, 2026, 04:22 AM・ Official details ↗
91. DegradedDuration: 1h 6m

    Elevated errors on Claude Opus 4.7

    Started: Jun 7, 2026, 11:35 PM・ Resolved: Jun 8, 2026, 12:41 AM・ Official details ↗
92. DegradedDuration: 57m

    Degraded performance for multiple models

    Started: Jun 7, 2026, 12:31 PM・ Resolved: Jun 7, 2026, 01:28 PM・ Official details ↗
93. DegradedDuration: 28m

    Elevated errors on Claude Opus 4.8

    Started: Jun 7, 2026, 03:37 AM・ Resolved: Jun 7, 2026, 04:05 AM・ Official details ↗
94. DegradedDuration: 47m

    Opus 4.8 degraded service

    Started: Jun 6, 2026, 06:27 PM・ Resolved: Jun 6, 2026, 07:14 PM・ Official details ↗
95. Partial outageDuration: 3h 9m
    Elevated errors on many Claude models
    Started: Jun 6, 2026, 12:19 AM・ Resolved: Jun 6, 2026, 03:28 AM・ Official details ↗
96. DegradedDuration: 28m

    Elevated errors on Opus 4.7

    Started: Jun 3, 2026, 04:10 PM・ Resolved: Jun 3, 2026, 04:38 PM・ Official details ↗
97. Partial outageDuration: 5h 44m
    Elevated errors on multiple models
    Started: Jun 2, 2026, 03:04 PM・ Resolved: Jun 2, 2026, 08:49 PM・ Official details ↗
98. DegradedDuration: 38m

    Degraded performance for Claude Sonnet 4.6

    Started: Jun 2, 2026, 03:28 AM・ Resolved: Jun 2, 2026, 04:06 AM・ Official details ↗
99. DegradedDuration: 1h 1m

    Elevated errors on Claude Sonnet 4.6

    Started: Jun 1, 2026, 11:40 PM・ Resolved: Jun 2, 2026, 12:41 AM・ Official details ↗
100. DegradedDuration: 1h 18m

     Elevated errors for Claude Opus 4.7

     Started: Jun 1, 2026, 09:15 PM・ Resolved: Jun 1, 2026, 10:33 PM・ Official details ↗