Noometry

Model comparison

Command R+ vs Grok 4.1 Fast

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 32.4 on the Noometry Index.

Last verified . 20 shared benchmarks.

Command R+ Cohere

32.4

Rank #257 Confirmed

Grok 4.1 Fast xAI

41.4

Rank #136 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Command R+ scores higher in 1 category and Grok 4.1 Fast in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 9.2.
  • The biggest single-benchmark swing is SimpleBench: 17.4% for Command R+ and 56% for Grok 4.1 Fast.
  • Grok 4.1 Fast is cheaper at $0.20 / $0.50 per million input/output tokens, against $2.50 / $10 for Command R+.
  • Command R+ has downloadable open weights; the other is API-only.

Side by side

Command R+Grok 4.1 Fast
ProviderCoherexAI
Noometry Index32.441.4
Released2024-08-302025-06-27
WeightsOpenProprietary
Context window128K128K
Max output4K30K
Input $ / M tokens$2.50$0.20
Output $ / M tokens$10$0.50
Results tracked3432

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Category by category

Coding Grok 4.1 Fast leads

Command R+: 29.1 (#309), Grok 4.1 Fast: 34.1 (#245)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Coding11871411
LMArena WebDev—1242
BigCodeBench Instruct33.8%—
LiveBench Coding19.1%—
BigCodeBench Complete41.9%—
ALE-Bench—394.93
HumanEval+56.7%—
MBPP+63.5%—

Agentic & Tool Use Not comparable

Command R+: —, Grok 4.1 Fast: 36.3 (#39)

BenchmarkCommand R+Grok 4.1 Fast
Berkeley Function Calling Leaderboard—69.6%
τ²-bench Banking—13.1%
LMArena Search—1171
Vending-Bench 2—1,107

Reasoning Grok 4.1 Fast leads

Command R+: 9.2 (#344), Grok 4.1 Fast: 43.4 (#49)

BenchmarkCommand R+Grok 4.1 Fast
SimpleBench17.4%56%
LMArena Hard Prompts11861407
DTBench54.9%87.7%
NYT Connections (extended)—87.4%
LiveBench Reasoning24.8%—
LiveBench Data Analysis38.1%—
LMCA5%—
Epoch Capabilities Index119.34—
ForecastBench—61
LiveBench31.8%—

Math Grok 4.1 Fast leads

Command R+: 28.9 (#242), Grok 4.1 Fast: 31.9 (#221)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Math11881408
MathArena Final-Answer Competitions—60.9%
ProofBench—4%
LiveBench Math21.3%—

Knowledge Command R+ leads

Command R+: 36.4 (#169), Grok 4.1 Fast: 33.1 (#207)

BenchmarkCommand R+Grok 4.1 Fast
Vectara Hallucination Rate6.9%17.8%
LMArena Expert11741399
MMLU69.4%—

Multimodal Not comparable

Command R+: —, Grok 4.1 Fast: 37.0 (#76)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Vision—1201

Multilingual Grok 4.1 Fast leads

Command R+: 38.6 (#227), Grok 4.1 Fast: 51.0 (#114)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Non-English12161391
LMArena Chinese12261441
LMArena French12091415
LMArena German12161404
LMArena Japanese11661349
LMArena Korean11381361
LMArena Russian12271387
LMArena Spanish11891413

Instruction Following Grok 4.1 Fast leads

Command R+: 60.0 (#254), Grok 4.1 Fast: 72.7 (#133)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Instruction Following11971376
LiveBench Instruction Following57.6%—

Long Context Grok 4.1 Fast leads

Command R+: 37.3 (#219), Grok 4.1 Fast: 42.4 (#126)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Longer Query12301390

Writing & Preference Grok 4.1 Fast leads

Command R+: 43.5 (#228), Grok 4.1 Fast: 57.2 (#131)

BenchmarkCommand R+Grok 4.1 Fast
LMArena Text12291408
LMArena Creative Writing12351394
LMArena Multi-Turn12131389
EQ-Bench Creative Writing—1327
LiveBench Language29.7%—

Frequently asked questions

Is Command R+ better than Grok 4.1 Fast?

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 32.4 on the Noometry Index.

Which is cheaper, Command R+ or Grok 4.1 Fast?

Grok 4.1 Fast is cheaper. It lists at $0.20 per million input tokens and $0.50 per million output tokens; Command R+ lists at $2.50 and $10.

Is Command R+ or Grok 4.1 Fast better for coding?

Grok 4.1 Fast scores higher on coding benchmarks: 34.1 versus 29.1 in the Noometry coding category.

Which has the bigger context window?

Both accept 128K tokens.

How many benchmarks do Command R+ and Grok 4.1 Fast share?

20 benchmarks have published results for both models. Command R+ has 34 scored results on Noometry and Grok 4.1 Fast has 32.

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