Models changedapi/beta/models
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Lines+60added
Lines−0removed
From line
287
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits23to this page, all time
### Beta Model Line
The whole hunk
from line 287, old and new numbered
/
from line 287
287287
288288 A human-readable name for the model.
289289
290 - `line: BetaModelLine or null`
291
292 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`.
293
294 - `"haiku"`
295
296 - `"sonnet"`
297
298 - `"opus"`
299
300 - `"fable"`
301
302 - `"mythos"`
303
290304 - `max_input_tokens: number or null`
291305
292306 Maximum input context window size in tokens for this model.
from line 408
394408 },
395409 "created_at": "2026-07-24T00:00:00Z",
396410 "display_name": "Claude Opus 5",
411 "line": "haiku",
397412 "max_input_tokens": 0,
398413 "max_tokens": 0,
399414 "type": "model"
from line 690
675690
676691 A human-readable name for the model.
677692
693 - `line: BetaModelLine or null`
694
695 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`.
696
697 - `"haiku"`
698
699 - `"sonnet"`
700
701 - `"opus"`
702
703 - `"fable"`
704
705 - `"mythos"`
706
678707 - `max_input_tokens: number or null`
679708
680709 Maximum input context window size in tokens for this model.
from line 797
768797 },
769798 "created_at": "2026-07-24T00:00:00Z",
770799 "display_name": "Claude Opus 5",
800 "line": "haiku",
771801 "max_input_tokens": 0,
772802 "max_tokens": 0,
773803 "type": "model"
from line 1152
11221152
11231153 A human-readable name for the model.
11241154
1155 - `line: BetaModelLine or null`
1156
1157 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`.
1158
1159 - `"haiku"`
1160
1161 - `"sonnet"`
1162
1163 - `"opus"`
1164
1165 - `"fable"`
1166
1167 - `"mythos"`
1168
11251169 - `max_input_tokens: number or null`
11261170
11271171 Maximum input context window size in tokens for this model.
from line 1173
11291173 - `max_tokens: number or null`
11301174
11311175 Maximum value for the `max_tokens` parameter when using this model.
1176
1177### Beta Model Line
1178
1179- `BetaModelLine = "haiku" or "sonnet" or "opus" or 2 more`
1180
1181 A Claude model line, such as `opus` or `sonnet`. More lines may be added as new values.
1182
1183 - `"haiku"`
1184
1185 - `"sonnet"`
1186
1187 - `"opus"`
1188
1189 - `"fable"`
1190
1191 - `"mythos"`
11321192
11331193### Beta Thinking Capability
11341194
No line in this hunk matches that.