Follow Discord
Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 25 Sep 2026
One change · api

List Agent Versions changedapi/beta/agents/versions/list

Nearest release: v2.1.283, published 3 hours 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+11added
Lines−11removed
From line 151 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits11to this page, all time

The whole hunk

from line 151, old and new numbered
/
lines
from line 151
151151 
152152 - `archived_at: string or null`
153153 
154 A timestamp in RFC 3339 format
154 When the agent was archived. Null if not archived.
155155 
156156 format: date-time
157157 
from line 183
183183 
184184 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
185185 
186 - `string`
187 
186188 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
187189 
188190 The model that will power your agent.
from line 251
249251 
250252 High-performance model for agents and coding
251253 
252 - `string`
253 
254254 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
255255 
256 How hard Claude works on each turn. Sets `output_config.effort` on every Messages call the session makes.
256 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
257257 
258258 - `BetaManagedAgentsEffortLow object`
259259 
from line 291
291291 
292292 - `speed: optional "standard" or "fast"`
293293 
294 Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Not all models support `fast`; invalid combinations are rejected at create time.
294 Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Defaults to `standard`. Not all models support `fast`; invalid combinations are rejected at create time.
295295 
296296 - `"standard"`
297297 
from line 299
299299 
300300 - `multiagent: BetaManagedAgentsMultiagent or null`
301301 
302 Resolved coordinator topology with a concrete agent roster.
302 Multiagent orchestration configuration. Null when the agent is single-threaded.
303303 
304304 - `type: "coordinator"`
305305 
Feedback