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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 22 Oct 2026
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citations changedbuild-with-claude/citations

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From line 374 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits14to this page, all time

The whole hunk

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374374### Token costs
375375 
376376* Enabling citations incurs a slight increase in input tokens because of system prompt additions and document chunking.
377* However, the citations feature is very efficient with output tokens. Internally, the model outputs citations in a standardized format that are then parsed into cited text and document location indices. The `cited_text` field is provided for convenience and does not count toward output tokens.
377* However, the citations feature is very efficient with output tokens. Internally, the model outputs citations in a standardized format, and those citations are then parsed into cited text and document location indices. The `cited_text` field is provided for convenience and does not count toward output tokens.
378378* When passed back in subsequent conversation turns, `cited_text` is also not counted toward input tokens.
379379 
380380### Feature compatibility
from line 974
974974</Tabs>
975975 
976976<Accordion title="Example plain text citation">
977 ```json
977 ```text
978978 {
979979 "type": "char_location",
980980 "cited_text": "The exact text being cited", // not counted toward output tokens
from line 1790
17901790</Tabs>
17911791 
17921792<Accordion title="Example PDF citation">
1793 ```json
1793 ```text
17941794 {
17951795 "type": "page_location",
17961796 "cited_text": "The exact text being cited", // not counted toward output tokens
from line 2109
21092109</CodeGroup>
21102110 
21112111<Accordion title="Example citation">
2112 ```json
2112 ```text
21132113 {
21142114 "type": "content_block_location",
21152115 "cited_text": "The exact text being cited", // not counted toward output tokens
from line 2127
21272127 
21282128When citations are enabled, responses include multiple text blocks with citations:
21292129 
2130```json
2130```text wrap
21312131{
21322132 "content": [
21332133 { "type": "text", "text": "According to the document, " },
from line 2206
22062206 
22072207<AccordionGroup>
22082208 <Accordion title="Example streaming events">
2209 ```sse
2209 ```text
22102210 event: message_start
22112211 data: {"type": "message_start", ...}
22122212 
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