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Cohere: Command A+

cohere/command-a-plus · CohereDeclared and measured agree
Tokenizer group (measured)
Cohere
Declared tokenizer tag
Cohere
Entered catalogue
22 September 2026
Last tested
5 October 2026
Evidence confidence
High

Why high: an exact fingerprint shared with 1 model that declares the same family, without a second signal of a different kind yet.

Evidence
  • ✓ exact tokenizer signature shared with 1 model

Identity statement

Cohere: Command A+ is Cohere's model, and its measured tokenizer sits in Cohere's own signature group alongside its sibling models. No other maker's measured model shares it so far.

What we checked

Four different kinds of evidence, and what each one showed
We checkedWhat we foundWhere it came from
How it counts tokensCounts every one of the 50 test strings exactly like 1 other modeltk_caaaa531
How its API is set upA combination of settings no other listing in the catalogue usesapi_1aab4505
How much it can read and writeReads up to 192,000 tokens at once, writes up to 64,000its own listing
Whether it thinks before answeringReasons when asked toits own listing
Who served our requestsCoherewe measured it, 5 October 2026

Shares this fingerprint

Exact signature first; template-boundary shifts of the same signature beneath

Closest measured models

Agreement across the mutually clean test strings

Click a row to open the full comparison.

The measured fingerprint

What each test string cost this model, in tokens

We sent Cohere: Command A+ fifty short pieces of text and recorded what each one cost it in tokens. The bars below are those costs. Two models built on the same tokenizer produce the same bars; a model built on a different one produces a different set, which is what makes this a fingerprint.

All 50 rows

English and whitespace

en-prose14
en-long15
spaces-203
spaces-603
tabs-203
newlines-204
mixed-ws6

Digits

digits-93
digits-124
digits-3010
digits-sep7
float-long9

CJK

zh-common10
zh-long13
zh-rare18
ja-kana7
ja-kanji9
ko10

Other scripts

ru12
ar11
he10
hi11
th9
el13

Emoji

emoji-basic10
emoji-skin10
emoji-zwj-family9
emoji-zwj-x327
emoji-flags12
emoji-prof13

Rare Unicode

math24
boxdraw22
combining9
cjk-ext-b16
surrogates35
zalgo33
rtl-mix6

Code

py-code25
py-indent15
json20
html16
regex39
camel6
snake6

Repetition and encodings

rare-word-x520
repeat-tok20
base6432
hex10
url17
uuid27

Overhead subtracted: 0 prompt tokens.

Declared record

What the catalogue claims about this model

Command A+ is Cohere's flagship model for enterprise agentic workflows. It accepts text and image inputs with a 192K context window, supports native tool calling with strict tool schemas, structured...

Modalities
text+image->text
Declared tokenizer
Cohere
Prompt price
$0.30 / M tokens
Completion price
$1.50 / M tokens

Supported parameters

frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningresponse_formatseedstopstructured_outputstemperaturetoolstop_ktop_p

defaults: {}

Catalogue entry

History

Every observation, kept as taken
  • 22 September 2026Enters the OpenRouter catalogue declared as Cohere.
  • 5 October 2026Fingerprinted in the YFarmX catalogue sweep · 50 of 50 strings measured clean.
  • 5 October 2026YFarmX assessment: consistent with the Cohere family, high confidence.