Get a Model changedapi/models/retrieve
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275
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First seen
14 Aug 2026
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Recorded edits23to this page, all time
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275275
276276 format: date-time
277277
278 - `deprecated_at: string or null`
279
280 RFC 3339 datetime string representing the time of the model's most recent deprecation. Populated for `deprecated` and `retired` models; `null` while the model is `active`.
281
282 format: date-time
283
278284 - `display_name: string`
279285
280286 A human-readable name for the model.
281287
288 - `lifecycle: "active" or "deprecated" or "retired"`
289
290 The model's current lifecycle stage.
291
292 - `active`: The model is available for use, open to new adopters, and not scheduled for retirement.
293 - `deprecated`: The model remains callable for organizations with existing access, but is headed for retirement and closed to new adopters.
294 - `retired`: The model is no longer available for use; inference requests naming it fail. It remains in the catalogue as the historical record of its retirement.
295
296 default: active
297
298 - `"active"`
299
300 - `"deprecated"`
301
302 - `"retired"`
303
282304 - `line: ModelLine or null`
283305
284306 The model line this model belongs to, such as `opus` for both Claude Opus 4.5 and Claude Opus 4.6. More lines may be added. `null` when the model belongs to no line; do not infer a line from the `id`.
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301323
302324 Maximum value for the `max_tokens` parameter when using this model.
303325
326 - `retires_at: string or null`
327
328 RFC 3339 datetime string representing the model's currently scheduled retirement date. The schedule can be revised until retirement occurs; `null` while the model is `active` or while no retirement is scheduled. A past date on a `deprecated` model means retirement is overdue, not that it has occurred: `lifecycle` is the retirement signal.
329
330 format: date-time
331
304332## Example
305333
306334```bash
from line 416
388416 }
389417 },
390418 "created_at": "2026-07-24T00:00:00Z",
419 "deprecated_at": "2019-12-27T18:11:19.117Z",
391420 "display_name": "Claude Opus 5",
421 "lifecycle": "active",
392422 "line": "haiku",
393423 "max_input_tokens": 0,
394424 "max_tokens": 0,
425 "retires_at": "2019-12-27T18:11:19.117Z",
395426 "type": "model"
396427}
397428```
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