Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · api

Create a Text Completion changed

api/completions/create

Nearest release: v2.1.258, 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+25added
Lines−3removed
From line 16 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits10to this page, all time

The whole hunk

from line 16, old and new numbered
/
lines
from line 16
1616 
1717 - `string`
1818 
19 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 38 more`
19 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 41 more`
2020 
2121 - `"message-batches-2024-09-24"`
2222 
from line 100
100100 
101101 - `"ce-user-management-2026-07-13"`
102102 
103 - `"mid-conversation-output-config-2026-07-01"`
104 
105 - `"thinking-binding-controls-2026-08-01"`
106 
107 - `"mid-conversation-system-clear-at-2026-08-21"`
108 
103109## Body parameters
104110 
105111- `max_tokens_to_sample: number`
from line 122
116122 
117123 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
118124 
119 - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more`
125 - `"claude-fable-5-1" or "claude-mythos-5-1" or "claude-sonnet-5" or 14 more`
120126 
121127 The model that will complete your prompt.
122128 
123129 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
124130 
131 - `"claude-fable-5-1"`
132 
133 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
134 
135 - `"claude-mythos-5-1"`
136 
137 Our most capable model for cybersecurity and biology research, available through trusted access programs
138 
125139 - `"claude-sonnet-5"`
126140 
127141 High-performance model for coding and agents
from line 302
288302 
289303 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
290304 
291 - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more`
305 - `"claude-fable-5-1" or "claude-mythos-5-1" or "claude-sonnet-5" or 14 more`
292306 
293307 The model that will complete your prompt.
294308 
295309 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
310 
311 - `"claude-fable-5-1"`
312 
313 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
314 
315 - `"claude-mythos-5-1"`
316 
317 Our most capable model for cybersecurity and biology research, available through trusted access programs
296318 
297319 - `"claude-sonnet-5"`
298320