Model comparison

C4ai Aya Expanse 32b vs Command R+

C4ai Aya Expanse 32b is the stronger model overall, scoring 35.9 to 32.4 on the Noometry Index.

Last verified October 10, 2026. 18 shared benchmarks.

C4ai Aya Expanse 32b

Cohere

35.9

Rank #221 Confirmed

Command R+

Cohere

32.4

Rank #257 Confirmed

Summary

They share 18 benchmarks with published results for both. C4ai Aya Expanse 32b scores higher in 4 categories and Command R+ in 4 categories; 6 gaps are clear of the uncertainty.
The widest gap is in reasoning, where C4ai Aya Expanse 32b leads 23.3 to 9.2.

Side by side

C4ai Aya Expanse 32b and Command R+ specifications
	C4ai Aya Expanse 32b	Command R+
Provider	Cohere	Cohere
Noometry Index	35.9	32.4
Released	2024-10-24	2024-08-30
Weights	Open	Open
Context window	128K	128K
Max output	4K	4K
Input $ / M tokens	—	$2.50
Output $ / M tokens	—	$10
Results tracked	18	34

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding C4ai Aya Expanse 32b leads

C4ai Aya Expanse 32b: 34.8 (#231), Command R+: 29.1 (#309)

Coding benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Coding	1197	1187
BigCodeBench Instruct	—	33.8%
LiveBench Coding	—	19.1%
BigCodeBench Complete	—	41.9%
HumanEval+	—	56.7%
MBPP+	—	63.5%

Reasoning C4ai Aya Expanse 32b leads

C4ai Aya Expanse 32b: 23.3 (#180), Command R+: 9.2 (#344)

Reasoning benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Hard Prompts	1193	1186
SimpleBench	—	17.4%
LiveBench Reasoning	—	24.8%
DTBench	—	54.9%
LiveBench Data Analysis	—	38.1%
LMCA	—	5%
Epoch Capabilities Index	—	119.34
LiveBench	—	31.8%

Math C4ai Aya Expanse 32b leads

C4ai Aya Expanse 32b: 34.0 (#197), Command R+: 28.9 (#242)

Math benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Math	1200	1188
LiveBench Math	—	21.3%

Knowledge Command R+ leads

C4ai Aya Expanse 32b: 33.2 (#206), Command R+: 36.4 (#169)

Knowledge benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
Vectara Hallucination Rate	10.9%	6.9%
LMArena Expert	1182	1174
MMLU	—	69.4%

Multilingual Too close to call

C4ai Aya Expanse 32b: 38.4 (#230), Command R+: 38.6 (#227)

Multilingual benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Non-English	1213	1216
LMArena Chinese	1211	1226
LMArena French	1248	1209
LMArena German	1199	1216
LMArena Japanese	1163	1166
LMArena Korean	1158	1138
LMArena Russian	1227	1227
LMArena Spanish	1193	1189

Instruction Following C4ai Aya Expanse 32b leads

C4ai Aya Expanse 32b: 62.6 (#237), Command R+: 60.0 (#254)

Instruction Following benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Instruction Following	1196	1197
LiveBench Instruction Following	—	57.6%

Long Context Too close to call

C4ai Aya Expanse 32b: 37.2 (#220), Command R+: 37.3 (#219)

Long Context benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Longer Query	1228	1230

Writing & Preference Command R+ leads

C4ai Aya Expanse 32b: 42.2 (#235), Command R+: 43.5 (#228)

Writing & Preference benchmarks
Benchmark	C4ai Aya Expanse 32b	Command R+
LMArena Text	1224	1229
LMArena Creative Writing	1200	1235
LMArena Multi-Turn	1190	1213
LiveBench Language	—	29.7%

Frequently asked questions

Is C4ai Aya Expanse 32b better than Command R+?

C4ai Aya Expanse 32b is the stronger model overall, scoring 35.9 to 32.4 on the Noometry Index.

Is C4ai Aya Expanse 32b or Command R+ better for coding?

C4ai Aya Expanse 32b scores higher on coding benchmarks: 34.8 versus 29.1 in the Noometry coding category.

Which has the bigger context window?

Both accept 128K tokens.

How many benchmarks do C4ai Aya Expanse 32b and Command R+ share?

18 benchmarks have published results for both models. C4ai Aya Expanse 32b has 18 scored results on Noometry and Command R+ has 34.