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Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Models

api/beta/models

first seen The page's own history The capture it came from

Nearest release: v2.1.238, published under 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.

api/beta/models Changed · +12 / -8 lines

from line 37
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
 
from line 83
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 269
 {
   "data": [
     {
-      "id": "claude-opus-4-6",
+      "id": "claude-opus-5",
       "allowed_fallback_models": [
         "string"
       ],
from line 334
           }
         }
       },
-      "created_at": "2026-02-04T00:00:00Z",
-      "display_name": "Claude Opus 4.6",
+      "created_at": "2026-07-24T00:00:00Z",
+      "display_name": "Claude Opus 5",
       "max_input_tokens": 0,
       "max_tokens": 0,
       "type": "model"
from line 369
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
 
from line 415
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 587
 
 ```json
 {
-  "id": "claude-opus-4-6",
+  "id": "claude-opus-5",
   "allowed_fallback_models": [
     "string"
   ],
from line 652
       }
     }
   },
-  "created_at": "2026-02-04T00:00:00Z",
-  "display_name": "Claude Opus 4.6",
+  "created_at": "2026-07-24T00:00:00Z",
+  "display_name": "Claude Opus 5",
   "max_input_tokens": 0,
   "max_tokens": 0,
   "type": "model"