Completions changedapi/completions
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+326added
Lines−346removed
From line
31
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits17to this page, all time
The whole hunk
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/
from line 31
3131
3232 - `string`
3333
34 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
34 - `"message-batches-2024-09-24"`
3535
36 - `"message-batches-2024-09-24"`
36 - `"prompt-caching-2024-07-31"`
3737
38 - `"prompt-caching-2024-07-31"`
38 - `"computer-use-2024-10-22"`
3939
40 - `"computer-use-2024-10-22"`
40 - `"computer-use-2025-01-24"`
4141
42 - `"computer-use-2025-01-24"`
42 - `"pdfs-2024-09-25"`
4343
44 - `"pdfs-2024-09-25"`
44 - `"token-counting-2024-11-01"`
4545
46 - `"token-counting-2024-11-01"`
46 - `"token-efficient-tools-2025-02-19"`
4747
48 - `"token-efficient-tools-2025-02-19"`
48 - `"output-128k-2025-02-19"`
4949
50 - `"output-128k-2025-02-19"`
50 - `"files-api-2025-04-14"`
5151
52 - `"files-api-2025-04-14"`
52 - `"mcp-client-2025-04-04"`
5353
54 - `"mcp-client-2025-04-04"`
54 - `"mcp-client-2025-11-20"`
5555
56 - `"mcp-client-2025-11-20"`
56 - `"dev-full-thinking-2025-05-14"`
5757
58 - `"dev-full-thinking-2025-05-14"`
58 - `"interleaved-thinking-2025-05-14"`
5959
60 - `"interleaved-thinking-2025-05-14"`
60 - `"code-execution-2025-05-22"`
6161
62 - `"code-execution-2025-05-22"`
62 - `"extended-cache-ttl-2025-04-11"`
6363
64 - `"extended-cache-ttl-2025-04-11"`
64 - `"context-1m-2025-08-07"`
6565
66 - `"context-1m-2025-08-07"`
66 - `"context-management-2025-06-27"`
6767
68 - `"context-management-2025-06-27"`
68 - `"model-context-window-exceeded-2025-08-26"`
6969
70 - `"model-context-window-exceeded-2025-08-26"`
70 - `"skills-2025-10-02"`
7171
72 - `"skills-2025-10-02"`
72 - `"fast-mode-2026-02-01"`
7373
74 - `"fast-mode-2026-02-01"`
74 - `"output-300k-2026-03-24"`
7575
76 - `"output-300k-2026-03-24"`
76 - `"user-profiles-2026-03-24"`
7777
78 - `"user-profiles-2026-03-24"`
78 - `"user-profiles-2026-08-18"`
7979
80 - `"user-profiles-2026-08-18"`
80 - `"user-profiles-2026-09-04"`
8181
82 - `"user-profiles-2026-09-04"`
82 - `"advisor-tool-2026-03-01"`
8383
84 - `"advisor-tool-2026-03-01"`
84 - `"managed-agents-2026-04-01"`
8585
86 - `"managed-agents-2026-04-01"`
86 - `"cache-diagnosis-2026-04-07"`
8787
88 - `"cache-diagnosis-2026-04-07"`
88 - `"dreaming-2026-04-21"`
8989
90 - `"dreaming-2026-04-21"`
90 - `"thinking-token-count-2026-05-13"`
9191
92 - `"thinking-token-count-2026-05-13"`
92 - `"server-side-fallback-2026-06-01"`
9393
94 - `"server-side-fallback-2026-06-01"`
94 - `"server-side-fallback-2026-07-01"`
9595
96 - `"server-side-fallback-2026-07-01"`
96 - `"fallback-credit-2026-06-01"`
9797
98 - `"fallback-credit-2026-06-01"`
98 - `"fallback-credit-2026-07-01"`
9999
100 - `"fallback-credit-2026-07-01"`
100 - `"agent-memory-2026-07-22"`
101101
102 - `"agent-memory-2026-07-22"`
102 - `"mid-conversation-tool-changes-2026-07-01"`
103103
104 - `"mid-conversation-tool-changes-2026-07-01"`
104 - `"compact-2026-01-12"`
105105
106 - `"compact-2026-01-12"`
106 - `"computer-use-2025-11-24"`
107107
108 - `"computer-use-2025-11-24"`
108 - `"mcp-tunnels-2026-06-22"`
109109
110 - `"mcp-tunnels-2026-06-22"`
110 - `"structured-outputs-2025-11-13"`
111111
112 - `"structured-outputs-2025-11-13"`
112 - `"task-budgets-2026-03-13"`
113113
114 - `"task-budgets-2026-03-13"`
114 - `"thinking-display-updates-2026-08-18"`
115115
116 - `"thinking-display-updates-2026-08-18"`
116 - `"ce-user-management-2026-07-13"`
117117
118 - `"ce-user-management-2026-07-13"`
118 - `"mid-conversation-output-config-2026-07-01"`
119119
120 - `"mid-conversation-output-config-2026-07-01"`
120 - `"thinking-binding-controls-2026-08-01"`
121121
122 - `"thinking-binding-controls-2026-08-01"`
122 - `"mid-conversation-system-clear-at-2026-08-21"`
123123
124 - `"mid-conversation-system-clear-at-2026-08-21"`
124 - `"compact-2026-09-04"`
125125
126 - `"compact-2026-09-04"`
126 - `"inline-tools-2026-09-15"`
127127
128 - `"inline-tools-2026-09-15"`
128 - `"mcp-client-2026-09-15"`
129129
130 - `"mcp-client-2026-09-15"`
131
132130### Body parameters
133131
134132- `max_tokens_to_sample: number`
from line 143
145143
146144 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
147145
148 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
146 - `"claude-sonnet-5-5"`
149147
150 The model that will complete your prompt.
148 Efficient model for coding and agents
151149
152 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
150 - `"claude-fable-5-1"`
153151
154 - `"claude-sonnet-5-5"`
152 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
155153
156 Efficient model for coding and agents
154 - `"claude-opus-5-5"`
157155
158 - `"claude-fable-5-1"`
156 Powerful intelligence for coding, knowledge work, and long-running agents
159157
160 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
158 - `"claude-mythos-5-1"`
161159
162 - `"claude-opus-5-5"`
160 Our most capable model for cybersecurity and biology research, available through trusted access programs
163161
164 Powerful intelligence for coding, knowledge work, and long-running agents
162 - `"claude-sonnet-5"`
165163
166 - `"claude-mythos-5-1"`
164 Efficient model for coding and agents
167165
168 Our most capable model for cybersecurity and biology research, available through trusted access programs
166 - `"claude-fable-5"`
169167
170 - `"claude-sonnet-5"`
168 Next generation of intelligence for the hardest knowledge work and coding problems
171169
172 Efficient model for coding and agents
170 - `"claude-mythos-5"`
173171
174 - `"claude-fable-5"`
172 Most capable model for cybersecurity and biology research
175173
176 Next generation of intelligence for the hardest knowledge work and coding problems
174 - `"claude-opus-5"`
177175
178 - `"claude-mythos-5"`
176 Powerful intelligence for long-running agents and coding
179177
180 Most capable model for cybersecurity and biology research
178 - `"claude-opus-4-8"`
181179
182 - `"claude-opus-5"`
180 Powerful intelligence for long-running agents and coding
183181
184 Powerful intelligence for long-running agents and coding
182 - `"claude-opus-4-7"`
185183
186 - `"claude-opus-4-8"`
184 Powerful intelligence for long-running agents and coding
187185
188 Powerful intelligence for long-running agents and coding
186 - `"claude-opus-4-6"`
189187
190 - `"claude-opus-4-7"`
188 Powerful intelligence for long-running agents and coding
191189
192 Powerful intelligence for long-running agents and coding
190 - `"claude-sonnet-4-6"`
193191
194 - `"claude-opus-4-6"`
192 Best combination of speed and intelligence
195193
196 Powerful intelligence for long-running agents and coding
194 - `"claude-haiku-4-5"`
197195
198 - `"claude-sonnet-4-6"`
196 Fastest model with near-frontier intelligence
199197
200 Best combination of speed and intelligence
198 - `"claude-haiku-4-5-20251001"`
201199
202 - `"claude-haiku-4-5"`
200 Fastest model with near-frontier intelligence
203201
204 Fastest model with near-frontier intelligence
202 - `"claude-opus-4-5"`
205203
206 - `"claude-haiku-4-5-20251001"`
204 Powerful intelligence for long-running agents and coding
207205
208 Fastest model with near-frontier intelligence
206 - `"claude-opus-4-5-20251101"`
209207
210 - `"claude-opus-4-5"`
208 Powerful intelligence for long-running agents and coding
211209
212 Powerful intelligence for long-running agents and coding
210 - `"claude-sonnet-4-5"`
213211
214 - `"claude-opus-4-5-20251101"`
212 High-performance model for agents and coding
215213
216 Powerful intelligence for long-running agents and coding
214 - `"claude-sonnet-4-5-20250929"`
217215
218 - `"claude-sonnet-4-5"`
216 High-performance model for agents and coding
219217
220 High-performance model for agents and coding
218 - `"claude-mythos-preview"`
221219
222 - `"claude-sonnet-4-5-20250929"`
220 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
223221
224 High-performance model for agents and coding
222 New class of intelligence, strongest in coding and cybersecurity
225223
226 - `"claude-mythos-preview"`
227
228 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
229
230 New class of intelligence, strongest in coding and cybersecurity
231
232224 - `string`
233225
234226- `prompt: string`
from line 335
343335
344336 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
345337
346 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
338 - `"claude-sonnet-5-5"`
347339
348 The model that will complete your prompt.
340 Efficient model for coding and agents
349341
350 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
342 - `"claude-fable-5-1"`
351343
352 - `"claude-sonnet-5-5"`
344 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
353345
354 Efficient model for coding and agents
346 - `"claude-opus-5-5"`
355347
356 - `"claude-fable-5-1"`
348 Powerful intelligence for coding, knowledge work, and long-running agents
357349
358 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
350 - `"claude-mythos-5-1"`
359351
360 - `"claude-opus-5-5"`
352 Our most capable model for cybersecurity and biology research, available through trusted access programs
361353
362 Powerful intelligence for coding, knowledge work, and long-running agents
354 - `"claude-sonnet-5"`
363355
364 - `"claude-mythos-5-1"`
356 Efficient model for coding and agents
365357
366 Our most capable model for cybersecurity and biology research, available through trusted access programs
358 - `"claude-fable-5"`
367359
368 - `"claude-sonnet-5"`
360 Next generation of intelligence for the hardest knowledge work and coding problems
369361
370 Efficient model for coding and agents
362 - `"claude-mythos-5"`
371363
372 - `"claude-fable-5"`
364 Most capable model for cybersecurity and biology research
373365
374 Next generation of intelligence for the hardest knowledge work and coding problems
366 - `"claude-opus-5"`
375367
376 - `"claude-mythos-5"`
368 Powerful intelligence for long-running agents and coding
377369
378 Most capable model for cybersecurity and biology research
370 - `"claude-opus-4-8"`
379371
380 - `"claude-opus-5"`
372 Powerful intelligence for long-running agents and coding
381373
382 Powerful intelligence for long-running agents and coding
374 - `"claude-opus-4-7"`
383375
384 - `"claude-opus-4-8"`
376 Powerful intelligence for long-running agents and coding
385377
386 Powerful intelligence for long-running agents and coding
378 - `"claude-opus-4-6"`
387379
388 - `"claude-opus-4-7"`
380 Powerful intelligence for long-running agents and coding
389381
390 Powerful intelligence for long-running agents and coding
382 - `"claude-sonnet-4-6"`
391383
392 - `"claude-opus-4-6"`
384 Best combination of speed and intelligence
393385
394 Powerful intelligence for long-running agents and coding
386 - `"claude-haiku-4-5"`
395387
396 - `"claude-sonnet-4-6"`
388 Fastest model with near-frontier intelligence
397389
398 Best combination of speed and intelligence
390 - `"claude-haiku-4-5-20251001"`
399391
400 - `"claude-haiku-4-5"`
392 Fastest model with near-frontier intelligence
401393
402 Fastest model with near-frontier intelligence
394 - `"claude-opus-4-5"`
403395
404 - `"claude-haiku-4-5-20251001"`
396 Powerful intelligence for long-running agents and coding
405397
406 Fastest model with near-frontier intelligence
398 - `"claude-opus-4-5-20251101"`
407399
408 - `"claude-opus-4-5"`
400 Powerful intelligence for long-running agents and coding
409401
410 Powerful intelligence for long-running agents and coding
402 - `"claude-sonnet-4-5"`
411403
412 - `"claude-opus-4-5-20251101"`
404 High-performance model for agents and coding
413405
414 Powerful intelligence for long-running agents and coding
406 - `"claude-sonnet-4-5-20250929"`
415407
416 - `"claude-sonnet-4-5"`
408 High-performance model for agents and coding
417409
418 High-performance model for agents and coding
410 - `"claude-mythos-preview"`
419411
420 - `"claude-sonnet-4-5-20250929"`
412 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
421413
422 High-performance model for agents and coding
414 New class of intelligence, strongest in coding and cybersecurity
423415
424 - `"claude-mythos-preview"`
425
426 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
427
428 New class of intelligence, strongest in coding and cybersecurity
429
430416 - `string`
431417
432418 - `stop_reason: string or null`
from line 484
498484
499485 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
500486
501 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
487 - `"claude-sonnet-5-5"`
502488
503 The model that will complete your prompt.
489 Efficient model for coding and agents
504490
505 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
491 - `"claude-fable-5-1"`
506492
507 - `"claude-sonnet-5-5"`
493 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
508494
509 Efficient model for coding and agents
495 - `"claude-opus-5-5"`
510496
511 - `"claude-fable-5-1"`
497 Powerful intelligence for coding, knowledge work, and long-running agents
512498
513 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
499 - `"claude-mythos-5-1"`
514500
515 - `"claude-opus-5-5"`
501 Our most capable model for cybersecurity and biology research, available through trusted access programs
516502
517 Powerful intelligence for coding, knowledge work, and long-running agents
503 - `"claude-sonnet-5"`
518504
519 - `"claude-mythos-5-1"`
505 Efficient model for coding and agents
520506
521 Our most capable model for cybersecurity and biology research, available through trusted access programs
507 - `"claude-fable-5"`
522508
523 - `"claude-sonnet-5"`
509 Next generation of intelligence for the hardest knowledge work and coding problems
524510
525 Efficient model for coding and agents
511 - `"claude-mythos-5"`
526512
527 - `"claude-fable-5"`
513 Most capable model for cybersecurity and biology research
528514
529 Next generation of intelligence for the hardest knowledge work and coding problems
515 - `"claude-opus-5"`
530516
531 - `"claude-mythos-5"`
517 Powerful intelligence for long-running agents and coding
532518
533 Most capable model for cybersecurity and biology research
519 - `"claude-opus-4-8"`
534520
535 - `"claude-opus-5"`
521 Powerful intelligence for long-running agents and coding
536522
537 Powerful intelligence for long-running agents and coding
523 - `"claude-opus-4-7"`
538524
539 - `"claude-opus-4-8"`
525 Powerful intelligence for long-running agents and coding
540526
541 Powerful intelligence for long-running agents and coding
527 - `"claude-opus-4-6"`
542528
543 - `"claude-opus-4-7"`
529 Powerful intelligence for long-running agents and coding
544530
545 Powerful intelligence for long-running agents and coding
531 - `"claude-sonnet-4-6"`
546532
547 - `"claude-opus-4-6"`
533 Best combination of speed and intelligence
548534
549 Powerful intelligence for long-running agents and coding
535 - `"claude-haiku-4-5"`
550536
551 - `"claude-sonnet-4-6"`
537 Fastest model with near-frontier intelligence
552538
553 Best combination of speed and intelligence
539 - `"claude-haiku-4-5-20251001"`
554540
555 - `"claude-haiku-4-5"`
541 Fastest model with near-frontier intelligence
556542
557 Fastest model with near-frontier intelligence
543 - `"claude-opus-4-5"`
558544
559 - `"claude-haiku-4-5-20251001"`
545 Powerful intelligence for long-running agents and coding
560546
561 Fastest model with near-frontier intelligence
547 - `"claude-opus-4-5-20251101"`
562548
563 - `"claude-opus-4-5"`
549 Powerful intelligence for long-running agents and coding
564550
565 Powerful intelligence for long-running agents and coding
551 - `"claude-sonnet-4-5"`
566552
567 - `"claude-opus-4-5-20251101"`
553 High-performance model for agents and coding
568554
569 Powerful intelligence for long-running agents and coding
555 - `"claude-sonnet-4-5-20250929"`
570556
571 - `"claude-sonnet-4-5"`
557 High-performance model for agents and coding
572558
573 High-performance model for agents and coding
559 - `"claude-mythos-preview"`
574560
575 - `"claude-sonnet-4-5-20250929"`
561 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
576562
577 High-performance model for agents and coding
578
579 - `"claude-mythos-preview"`
580
581 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
582
583 New class of intelligence, strongest in coding and cybersecurity
563 New class of intelligence, strongest in coding and cybersecurity
584564
585565 - `string`
586566
No line in this hunk matches that.