List Sessions changedapi/beta/sessions/list
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+158added
Lines−166removed
From line
103
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits15to this page, all time
The whole hunk
from line 103, old and new numbered
/
from line 103
103103
104104 - `string`
105105
106 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
106 - `"message-batches-2024-09-24"`
107107
108 - `"message-batches-2024-09-24"`
108 - `"prompt-caching-2024-07-31"`
109109
110 - `"prompt-caching-2024-07-31"`
110 - `"computer-use-2024-10-22"`
111111
112 - `"computer-use-2024-10-22"`
112 - `"computer-use-2025-01-24"`
113113
114 - `"computer-use-2025-01-24"`
114 - `"pdfs-2024-09-25"`
115115
116 - `"pdfs-2024-09-25"`
116 - `"token-counting-2024-11-01"`
117117
118 - `"token-counting-2024-11-01"`
118 - `"token-efficient-tools-2025-02-19"`
119119
120 - `"token-efficient-tools-2025-02-19"`
120 - `"output-128k-2025-02-19"`
121121
122 - `"output-128k-2025-02-19"`
122 - `"files-api-2025-04-14"`
123123
124 - `"files-api-2025-04-14"`
124 - `"mcp-client-2025-04-04"`
125125
126 - `"mcp-client-2025-04-04"`
126 - `"mcp-client-2025-11-20"`
127127
128 - `"mcp-client-2025-11-20"`
128 - `"dev-full-thinking-2025-05-14"`
129129
130 - `"dev-full-thinking-2025-05-14"`
130 - `"interleaved-thinking-2025-05-14"`
131131
132 - `"interleaved-thinking-2025-05-14"`
132 - `"code-execution-2025-05-22"`
133133
134 - `"code-execution-2025-05-22"`
134 - `"extended-cache-ttl-2025-04-11"`
135135
136 - `"extended-cache-ttl-2025-04-11"`
136 - `"context-1m-2025-08-07"`
137137
138 - `"context-1m-2025-08-07"`
138 - `"context-management-2025-06-27"`
139139
140 - `"context-management-2025-06-27"`
140 - `"model-context-window-exceeded-2025-08-26"`
141141
142 - `"model-context-window-exceeded-2025-08-26"`
142 - `"skills-2025-10-02"`
143143
144 - `"skills-2025-10-02"`
144 - `"fast-mode-2026-02-01"`
145145
146 - `"fast-mode-2026-02-01"`
146 - `"output-300k-2026-03-24"`
147147
148 - `"output-300k-2026-03-24"`
148 - `"user-profiles-2026-03-24"`
149149
150 - `"user-profiles-2026-03-24"`
150 - `"user-profiles-2026-08-18"`
151151
152 - `"user-profiles-2026-08-18"`
152 - `"user-profiles-2026-09-04"`
153153
154 - `"user-profiles-2026-09-04"`
154 - `"advisor-tool-2026-03-01"`
155155
156 - `"advisor-tool-2026-03-01"`
156 - `"managed-agents-2026-04-01"`
157157
158 - `"managed-agents-2026-04-01"`
158 - `"cache-diagnosis-2026-04-07"`
159159
160 - `"cache-diagnosis-2026-04-07"`
160 - `"dreaming-2026-04-21"`
161161
162 - `"dreaming-2026-04-21"`
162 - `"thinking-token-count-2026-05-13"`
163163
164 - `"thinking-token-count-2026-05-13"`
164 - `"server-side-fallback-2026-06-01"`
165165
166 - `"server-side-fallback-2026-06-01"`
166 - `"server-side-fallback-2026-07-01"`
167167
168 - `"server-side-fallback-2026-07-01"`
168 - `"fallback-credit-2026-06-01"`
169169
170 - `"fallback-credit-2026-06-01"`
170 - `"fallback-credit-2026-07-01"`
171171
172 - `"fallback-credit-2026-07-01"`
172 - `"agent-memory-2026-07-22"`
173173
174 - `"agent-memory-2026-07-22"`
174 - `"mid-conversation-tool-changes-2026-07-01"`
175175
176 - `"mid-conversation-tool-changes-2026-07-01"`
176 - `"compact-2026-01-12"`
177177
178 - `"compact-2026-01-12"`
178 - `"computer-use-2025-11-24"`
179179
180 - `"computer-use-2025-11-24"`
180 - `"mcp-tunnels-2026-06-22"`
181181
182 - `"mcp-tunnels-2026-06-22"`
182 - `"structured-outputs-2025-11-13"`
183183
184 - `"structured-outputs-2025-11-13"`
184 - `"task-budgets-2026-03-13"`
185185
186 - `"task-budgets-2026-03-13"`
186 - `"thinking-display-updates-2026-08-18"`
187187
188 - `"thinking-display-updates-2026-08-18"`
188 - `"ce-user-management-2026-07-13"`
189189
190 - `"ce-user-management-2026-07-13"`
190 - `"mid-conversation-output-config-2026-07-01"`
191191
192 - `"mid-conversation-output-config-2026-07-01"`
192 - `"thinking-binding-controls-2026-08-01"`
193193
194 - `"thinking-binding-controls-2026-08-01"`
194 - `"mid-conversation-system-clear-at-2026-08-21"`
195195
196 - `"mid-conversation-system-clear-at-2026-08-21"`
196 - `"compact-2026-09-04"`
197197
198 - `"compact-2026-09-04"`
198 - `"inline-tools-2026-09-15"`
199199
200 - `"inline-tools-2026-09-15"`
200 - `"mcp-client-2026-09-15"`
201201
202 - `"mcp-client-2026-09-15"`
203
204202- `"anthropic-workspace-id": optional string`
205203
206204 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 243
245243
246244 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
247245
248 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
246 - `"claude-sonnet-5-5"`
249247
250 The model that will power your agent.
248 Efficient model for coding and agents
251249
252 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
250 - `"claude-opus-5-5"`
253251
254 - `"claude-sonnet-5-5"`
252 Powerful intelligence for coding, knowledge work, and long-running agents
255253
256 Efficient model for coding and agents
254 - `"claude-fable-5-1"`
257255
258 - `"claude-opus-5-5"`
256 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
259257
260 Powerful intelligence for coding, knowledge work, and long-running agents
258 - `"claude-sonnet-5"`
261259
262 - `"claude-fable-5-1"`
260 Efficient model for coding and agents
263261
264 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
262 - `"claude-fable-5"`
265263
266 - `"claude-sonnet-5"`
264 Next generation of intelligence for the hardest knowledge work and coding problems
267265
268 Efficient model for coding and agents
266 - `"claude-opus-5"`
269267
270 - `"claude-fable-5"`
268 Powerful intelligence for long-running agents and coding
271269
272 Next generation of intelligence for the hardest knowledge work and coding problems
270 - `"claude-opus-4-8"`
273271
274 - `"claude-opus-5"`
272 Powerful intelligence for long-running agents and coding
275273
276 Powerful intelligence for long-running agents and coding
274 - `"claude-opus-4-7"`
277275
278 - `"claude-opus-4-8"`
276 Powerful intelligence for long-running agents and coding
279277
280 Powerful intelligence for long-running agents and coding
278 - `"claude-opus-4-6"`
281279
282 - `"claude-opus-4-7"`
280 Powerful intelligence for long-running agents and coding
283281
284 Powerful intelligence for long-running agents and coding
282 - `"claude-sonnet-4-6"`
285283
286 - `"claude-opus-4-6"`
284 Best combination of speed and intelligence
287285
288 Powerful intelligence for long-running agents and coding
286 - `"claude-haiku-4-5"`
289287
290 - `"claude-sonnet-4-6"`
288 Fastest model with near-frontier intelligence
291289
292 Best combination of speed and intelligence
290 - `"claude-haiku-4-5-20251001"`
293291
294 - `"claude-haiku-4-5"`
292 Fastest model with near-frontier intelligence
295293
296 Fastest model with near-frontier intelligence
294 - `"claude-opus-4-5"`
297295
298 - `"claude-haiku-4-5-20251001"`
296 Powerful intelligence for long-running agents and coding
299297
300 Fastest model with near-frontier intelligence
298 - `"claude-opus-4-5-20251101"`
301299
302 - `"claude-opus-4-5"`
300 Powerful intelligence for long-running agents and coding
303301
304 Powerful intelligence for long-running agents and coding
302 - `"claude-sonnet-4-5"`
305303
306 - `"claude-opus-4-5-20251101"`
304 High-performance model for agents and coding
307305
308 Powerful intelligence for long-running agents and coding
306 - `"claude-sonnet-4-5-20250929"`
309307
310 - `"claude-sonnet-4-5"`
311
312 High-performance model for agents and coding
313
314 - `"claude-sonnet-4-5-20250929"`
315
316 High-performance model for agents and coding
308 High-performance model for agents and coding
317309
318310 - `string`
319311
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