Events changedapi/beta/sessions/threads/events
Nearest release: v2.1.286, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Recorded here
Lines+316added
Lines−332removed
From line
33
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits18to this page, all time
The whole hunk
from line 33, old and new numbered
/
from line 33
3333
3434 - `string`
3535
36 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
36 - `"message-batches-2024-09-24"`
3737
38 - `"message-batches-2024-09-24"`
38 - `"prompt-caching-2024-07-31"`
3939
40 - `"prompt-caching-2024-07-31"`
40 - `"computer-use-2024-10-22"`
4141
42 - `"computer-use-2024-10-22"`
42 - `"computer-use-2025-01-24"`
4343
44 - `"computer-use-2025-01-24"`
44 - `"pdfs-2024-09-25"`
4545
46 - `"pdfs-2024-09-25"`
46 - `"token-counting-2024-11-01"`
4747
48 - `"token-counting-2024-11-01"`
48 - `"token-efficient-tools-2025-02-19"`
4949
50 - `"token-efficient-tools-2025-02-19"`
50 - `"output-128k-2025-02-19"`
5151
52 - `"output-128k-2025-02-19"`
52 - `"files-api-2025-04-14"`
5353
54 - `"files-api-2025-04-14"`
54 - `"mcp-client-2025-04-04"`
5555
56 - `"mcp-client-2025-04-04"`
56 - `"mcp-client-2025-11-20"`
5757
58 - `"mcp-client-2025-11-20"`
58 - `"dev-full-thinking-2025-05-14"`
5959
60 - `"dev-full-thinking-2025-05-14"`
60 - `"interleaved-thinking-2025-05-14"`
6161
62 - `"interleaved-thinking-2025-05-14"`
62 - `"code-execution-2025-05-22"`
6363
64 - `"code-execution-2025-05-22"`
64 - `"extended-cache-ttl-2025-04-11"`
6565
66 - `"extended-cache-ttl-2025-04-11"`
66 - `"context-1m-2025-08-07"`
6767
68 - `"context-1m-2025-08-07"`
68 - `"context-management-2025-06-27"`
6969
70 - `"context-management-2025-06-27"`
70 - `"model-context-window-exceeded-2025-08-26"`
7171
72 - `"model-context-window-exceeded-2025-08-26"`
72 - `"skills-2025-10-02"`
7373
74 - `"skills-2025-10-02"`
74 - `"fast-mode-2026-02-01"`
7575
76 - `"fast-mode-2026-02-01"`
76 - `"output-300k-2026-03-24"`
7777
78 - `"output-300k-2026-03-24"`
78 - `"user-profiles-2026-03-24"`
7979
80 - `"user-profiles-2026-03-24"`
80 - `"user-profiles-2026-08-18"`
8181
82 - `"user-profiles-2026-08-18"`
82 - `"user-profiles-2026-09-04"`
8383
84 - `"user-profiles-2026-09-04"`
84 - `"advisor-tool-2026-03-01"`
8585
86 - `"advisor-tool-2026-03-01"`
86 - `"managed-agents-2026-04-01"`
8787
88 - `"managed-agents-2026-04-01"`
88 - `"cache-diagnosis-2026-04-07"`
8989
90 - `"cache-diagnosis-2026-04-07"`
90 - `"dreaming-2026-04-21"`
9191
92 - `"dreaming-2026-04-21"`
92 - `"thinking-token-count-2026-05-13"`
9393
94 - `"thinking-token-count-2026-05-13"`
94 - `"server-side-fallback-2026-06-01"`
9595
96 - `"server-side-fallback-2026-06-01"`
96 - `"server-side-fallback-2026-07-01"`
9797
98 - `"server-side-fallback-2026-07-01"`
98 - `"fallback-credit-2026-06-01"`
9999
100 - `"fallback-credit-2026-06-01"`
100 - `"fallback-credit-2026-07-01"`
101101
102 - `"fallback-credit-2026-07-01"`
102 - `"agent-memory-2026-07-22"`
103103
104 - `"agent-memory-2026-07-22"`
104 - `"mid-conversation-tool-changes-2026-07-01"`
105105
106 - `"mid-conversation-tool-changes-2026-07-01"`
106 - `"compact-2026-01-12"`
107107
108 - `"compact-2026-01-12"`
108 - `"computer-use-2025-11-24"`
109109
110 - `"computer-use-2025-11-24"`
110 - `"mcp-tunnels-2026-06-22"`
111111
112 - `"mcp-tunnels-2026-06-22"`
112 - `"structured-outputs-2025-11-13"`
113113
114 - `"structured-outputs-2025-11-13"`
114 - `"task-budgets-2026-03-13"`
115115
116 - `"task-budgets-2026-03-13"`
116 - `"thinking-display-updates-2026-08-18"`
117117
118 - `"thinking-display-updates-2026-08-18"`
118 - `"ce-user-management-2026-07-13"`
119119
120 - `"ce-user-management-2026-07-13"`
120 - `"mid-conversation-output-config-2026-07-01"`
121121
122 - `"mid-conversation-output-config-2026-07-01"`
122 - `"thinking-binding-controls-2026-08-01"`
123123
124 - `"thinking-binding-controls-2026-08-01"`
124 - `"mid-conversation-system-clear-at-2026-08-21"`
125125
126 - `"mid-conversation-system-clear-at-2026-08-21"`
126 - `"compact-2026-09-04"`
127127
128 - `"compact-2026-09-04"`
128 - `"inline-tools-2026-09-15"`
129129
130 - `"inline-tools-2026-09-15"`
130 - `"mcp-client-2026-09-15"`
131131
132 - `"mcp-client-2026-09-15"`
133
134132- `"anthropic-workspace-id": optional string`
135133
136134 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 1657
16591657
16601658 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16611659
1662 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
1660 - `"claude-sonnet-5-5"`
16631661
1664 The model that will power your agent.
1662 Efficient model for coding and agents
16651663
1666 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
1664 - `"claude-opus-5-5"`
16671665
1668 - `"claude-sonnet-5-5"`
1666 Powerful intelligence for coding, knowledge work, and long-running agents
16691667
1670 Efficient model for coding and agents
1668 - `"claude-fable-5-1"`
16711669
1672 - `"claude-opus-5-5"`
1670 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
16731671
1674 Powerful intelligence for coding, knowledge work, and long-running agents
1672 - `"claude-sonnet-5"`
16751673
1676 - `"claude-fable-5-1"`
1674 Efficient model for coding and agents
16771675
1678 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
1676 - `"claude-fable-5"`
16791677
1680 - `"claude-sonnet-5"`
1678 Next generation of intelligence for the hardest knowledge work and coding problems
16811679
1682 Efficient model for coding and agents
1680 - `"claude-opus-5"`
16831681
1684 - `"claude-fable-5"`
1682 Powerful intelligence for long-running agents and coding
16851683
1686 Next generation of intelligence for the hardest knowledge work and coding problems
1684 - `"claude-opus-4-8"`
16871685
1688 - `"claude-opus-5"`
1686 Powerful intelligence for long-running agents and coding
16891687
1690 Powerful intelligence for long-running agents and coding
1688 - `"claude-opus-4-7"`
16911689
1692 - `"claude-opus-4-8"`
1690 Powerful intelligence for long-running agents and coding
16931691
1694 Powerful intelligence for long-running agents and coding
1692 - `"claude-opus-4-6"`
16951693
1696 - `"claude-opus-4-7"`
1694 Powerful intelligence for long-running agents and coding
16971695
1698 Powerful intelligence for long-running agents and coding
1696 - `"claude-sonnet-4-6"`
16991697
1700 - `"claude-opus-4-6"`
1698 Best combination of speed and intelligence
17011699
1702 Powerful intelligence for long-running agents and coding
1700 - `"claude-haiku-4-5"`
17031701
1704 - `"claude-sonnet-4-6"`
1702 Fastest model with near-frontier intelligence
17051703
1706 Best combination of speed and intelligence
1704 - `"claude-haiku-4-5-20251001"`
17071705
1708 - `"claude-haiku-4-5"`
1706 Fastest model with near-frontier intelligence
17091707
1710 Fastest model with near-frontier intelligence
1708 - `"claude-opus-4-5"`
17111709
1712 - `"claude-haiku-4-5-20251001"`
1710 Powerful intelligence for long-running agents and coding
17131711
1714 Fastest model with near-frontier intelligence
1712 - `"claude-opus-4-5-20251101"`
17151713
1716 - `"claude-opus-4-5"`
1714 Powerful intelligence for long-running agents and coding
17171715
1718 Powerful intelligence for long-running agents and coding
1716 - `"claude-sonnet-4-5"`
17191717
1720 - `"claude-opus-4-5-20251101"`
1718 High-performance model for agents and coding
17211719
1722 Powerful intelligence for long-running agents and coding
1720 - `"claude-sonnet-4-5-20250929"`
17231721
1724 - `"claude-sonnet-4-5"`
1722 High-performance model for agents and coding
17251723
1726 High-performance model for agents and coding
1727
1728 - `"claude-sonnet-4-5-20250929"`
1729
1730 High-performance model for agents and coding
1731
17321724 - `string`
17331725
17341726 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
from line 2427
24352427
24362428 - `string`
24372429
2438 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
2430 - `"message-batches-2024-09-24"`
24392431
2440 - `"message-batches-2024-09-24"`
2432 - `"prompt-caching-2024-07-31"`
24412433
2442 - `"prompt-caching-2024-07-31"`
2434 - `"computer-use-2024-10-22"`
24432435
2444 - `"computer-use-2024-10-22"`
2436 - `"computer-use-2025-01-24"`
24452437
2446 - `"computer-use-2025-01-24"`
2438 - `"pdfs-2024-09-25"`
24472439
2448 - `"pdfs-2024-09-25"`
2440 - `"token-counting-2024-11-01"`
24492441
2450 - `"token-counting-2024-11-01"`
2442 - `"token-efficient-tools-2025-02-19"`
24512443
2452 - `"token-efficient-tools-2025-02-19"`
2444 - `"output-128k-2025-02-19"`
24532445
2454 - `"output-128k-2025-02-19"`
2446 - `"files-api-2025-04-14"`
24552447
2456 - `"files-api-2025-04-14"`
2448 - `"mcp-client-2025-04-04"`
24572449
2458 - `"mcp-client-2025-04-04"`
2450 - `"mcp-client-2025-11-20"`
24592451
2460 - `"mcp-client-2025-11-20"`
2452 - `"dev-full-thinking-2025-05-14"`
24612453
2462 - `"dev-full-thinking-2025-05-14"`
2454 - `"interleaved-thinking-2025-05-14"`
24632455
2464 - `"interleaved-thinking-2025-05-14"`
2456 - `"code-execution-2025-05-22"`
24652457
2466 - `"code-execution-2025-05-22"`
2458 - `"extended-cache-ttl-2025-04-11"`
24672459
2468 - `"extended-cache-ttl-2025-04-11"`
2460 - `"context-1m-2025-08-07"`
24692461
2470 - `"context-1m-2025-08-07"`
2462 - `"context-management-2025-06-27"`
24712463
2472 - `"context-management-2025-06-27"`
2464 - `"model-context-window-exceeded-2025-08-26"`
24732465
2474 - `"model-context-window-exceeded-2025-08-26"`
2466 - `"skills-2025-10-02"`
24752467
2476 - `"skills-2025-10-02"`
2468 - `"fast-mode-2026-02-01"`
24772469
2478 - `"fast-mode-2026-02-01"`
2470 - `"output-300k-2026-03-24"`
24792471
2480 - `"output-300k-2026-03-24"`
2472 - `"user-profiles-2026-03-24"`
24812473
2482 - `"user-profiles-2026-03-24"`
2474 - `"user-profiles-2026-08-18"`
24832475
2484 - `"user-profiles-2026-08-18"`
2476 - `"user-profiles-2026-09-04"`
24852477
2486 - `"user-profiles-2026-09-04"`
2478 - `"advisor-tool-2026-03-01"`
24872479
2488 - `"advisor-tool-2026-03-01"`
2480 - `"managed-agents-2026-04-01"`
24892481
2490 - `"managed-agents-2026-04-01"`
2482 - `"cache-diagnosis-2026-04-07"`
24912483
2492 - `"cache-diagnosis-2026-04-07"`
2484 - `"dreaming-2026-04-21"`
24932485
2494 - `"dreaming-2026-04-21"`
2486 - `"thinking-token-count-2026-05-13"`
24952487
2496 - `"thinking-token-count-2026-05-13"`
2488 - `"server-side-fallback-2026-06-01"`
24972489
2498 - `"server-side-fallback-2026-06-01"`
2490 - `"server-side-fallback-2026-07-01"`
24992491
2500 - `"server-side-fallback-2026-07-01"`
2492 - `"fallback-credit-2026-06-01"`
25012493
2502 - `"fallback-credit-2026-06-01"`
2494 - `"fallback-credit-2026-07-01"`
25032495
2504 - `"fallback-credit-2026-07-01"`
2496 - `"agent-memory-2026-07-22"`
25052497
2506 - `"agent-memory-2026-07-22"`
2498 - `"mid-conversation-tool-changes-2026-07-01"`
25072499
2508 - `"mid-conversation-tool-changes-2026-07-01"`
2500 - `"compact-2026-01-12"`
25092501
2510 - `"compact-2026-01-12"`
2502 - `"computer-use-2025-11-24"`
25112503
2512 - `"computer-use-2025-11-24"`
2504 - `"mcp-tunnels-2026-06-22"`
25132505
2514 - `"mcp-tunnels-2026-06-22"`
2506 - `"structured-outputs-2025-11-13"`
25152507
2516 - `"structured-outputs-2025-11-13"`
2508 - `"task-budgets-2026-03-13"`
25172509
2518 - `"task-budgets-2026-03-13"`
2510 - `"thinking-display-updates-2026-08-18"`
25192511
2520 - `"thinking-display-updates-2026-08-18"`
2512 - `"ce-user-management-2026-07-13"`
25212513
2522 - `"ce-user-management-2026-07-13"`
2514 - `"mid-conversation-output-config-2026-07-01"`
25232515
2524 - `"mid-conversation-output-config-2026-07-01"`
2516 - `"thinking-binding-controls-2026-08-01"`
25252517
2526 - `"thinking-binding-controls-2026-08-01"`
2518 - `"mid-conversation-system-clear-at-2026-08-21"`
25272519
2528 - `"mid-conversation-system-clear-at-2026-08-21"`
2520 - `"compact-2026-09-04"`
25292521
2530 - `"compact-2026-09-04"`
2522 - `"inline-tools-2026-09-15"`
25312523
2532 - `"inline-tools-2026-09-15"`
2524 - `"mcp-client-2026-09-15"`
25332525
2534 - `"mcp-client-2026-09-15"`
2535
25362526- `"anthropic-workspace-id": optional string`
25372527
25382528 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 4051
40614051
40624052 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
40634053
4064 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
4054 - `"claude-sonnet-5-5"`
40654055
4066 The model that will power your agent.
4056 Efficient model for coding and agents
40674057
4068 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
4058 - `"claude-opus-5-5"`
40694059
4070 - `"claude-sonnet-5-5"`
4060 Powerful intelligence for coding, knowledge work, and long-running agents
40714061
4072 Efficient model for coding and agents
4062 - `"claude-fable-5-1"`
40734063
4074 - `"claude-opus-5-5"`
4064 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
40754065
4076 Powerful intelligence for coding, knowledge work, and long-running agents
4066 - `"claude-sonnet-5"`
40774067
4078 - `"claude-fable-5-1"`
4068 Efficient model for coding and agents
40794069
4080 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
4070 - `"claude-fable-5"`
40814071
4082 - `"claude-sonnet-5"`
4072 Next generation of intelligence for the hardest knowledge work and coding problems
40834073
4084 Efficient model for coding and agents
4074 - `"claude-opus-5"`
40854075
4086 - `"claude-fable-5"`
4076 Powerful intelligence for long-running agents and coding
40874077
4088 Next generation of intelligence for the hardest knowledge work and coding problems
4078 - `"claude-opus-4-8"`
40894079
4090 - `"claude-opus-5"`
4080 Powerful intelligence for long-running agents and coding
40914081
4092 Powerful intelligence for long-running agents and coding
4082 - `"claude-opus-4-7"`
40934083
4094 - `"claude-opus-4-8"`
4084 Powerful intelligence for long-running agents and coding
40954085
4096 Powerful intelligence for long-running agents and coding
4086 - `"claude-opus-4-6"`
40974087
4098 - `"claude-opus-4-7"`
4088 Powerful intelligence for long-running agents and coding
40994089
4100 Powerful intelligence for long-running agents and coding
4090 - `"claude-sonnet-4-6"`
41014091
4102 - `"claude-opus-4-6"`
4092 Best combination of speed and intelligence
41034093
4104 Powerful intelligence for long-running agents and coding
4094 - `"claude-haiku-4-5"`
41054095
4106 - `"claude-sonnet-4-6"`
4096 Fastest model with near-frontier intelligence
41074097
4108 Best combination of speed and intelligence
4098 - `"claude-haiku-4-5-20251001"`
41094099
4110 - `"claude-haiku-4-5"`
4100 Fastest model with near-frontier intelligence
41114101
4112 Fastest model with near-frontier intelligence
4102 - `"claude-opus-4-5"`
41134103
4114 - `"claude-haiku-4-5-20251001"`
4104 Powerful intelligence for long-running agents and coding
41154105
4116 Fastest model with near-frontier intelligence
4106 - `"claude-opus-4-5-20251101"`
41174107
4118 - `"claude-opus-4-5"`
4108 Powerful intelligence for long-running agents and coding
41194109
4120 Powerful intelligence for long-running agents and coding
4110 - `"claude-sonnet-4-5"`
41214111
4122 - `"claude-opus-4-5-20251101"`
4112 High-performance model for agents and coding
41234113
4124 Powerful intelligence for long-running agents and coding
4114 - `"claude-sonnet-4-5-20250929"`
41254115
4126 - `"claude-sonnet-4-5"`
4127
4128 High-performance model for agents and coding
4129
4130 - `"claude-sonnet-4-5-20250929"`
4131
4132 High-performance model for agents and coding
4116 High-performance model for agents and coding
41334117
41344118 - `string`
41354119
No line in this hunk matches that.