Noometry

Model comparison

Command R vs Grok 4.1 Fast

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 31.4 on the Noometry Index.

Last verified . 18 shared benchmarks.

Command R Cohere

31.4

Rank #272 Confirmed

Grok 4.1 Fast xAI

41.4

Rank #136 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Command R scores higher in 0 categories and Grok 4.1 Fast in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 13.8.
  • The biggest single-benchmark swing is DTBench: 46.4% for Command R and 87.7% for Grok 4.1 Fast.
  • Both cost about the same: $0.15 input and $0.60 output per million tokens.
  • Command R has downloadable open weights; the other is API-only.

Side by side

Command RGrok 4.1 Fast
ProviderCoherexAI
Noometry Index31.441.4
Released2024-08-302025-06-27
WeightsOpenProprietary
Context window128K128K
Max output4K30K
Input $ / M tokens$0.15$0.20
Output $ / M tokens$0.60$0.50
Results tracked2932

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

Category by category

Coding Grok 4.1 Fast leads

Command R: 29.3 (#306), Grok 4.1 Fast: 34.1 (#245)

BenchmarkCommand RGrok 4.1 Fast
LMArena Coding11691411
LMArena WebDev—1242
BigCodeBench Instruct37.1%—
LiveBench Coding17.9%—
BigCodeBench Complete45.2%—
ALE-Bench—394.93

Agentic & Tool Use Not comparable

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

BenchmarkCommand RGrok 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: 13.8 (#331), Grok 4.1 Fast: 43.4 (#49)

BenchmarkCommand RGrok 4.1 Fast
LMArena Hard Prompts11641407
DTBench46.4%87.7%
SimpleBench—56%
NYT Connections (extended)—87.4%
LiveBench Reasoning21.9%—
LiveBench Data Analysis33.3%—
LMCA9.2%—
ForecastBench—61
LiveBench27.5%—

Math Grok 4.1 Fast leads

Command R: 28.0 (#246), Grok 4.1 Fast: 31.9 (#221)

BenchmarkCommand RGrok 4.1 Fast
LMArena Math11551408
MathArena Final-Answer Competitions—60.9%
ProofBench—4%
LiveBench Math19.4%—

Knowledge Grok 4.1 Fast leads

Command R: 31.0 (#221), Grok 4.1 Fast: 33.1 (#207)

BenchmarkCommand RGrok 4.1 Fast
LMArena Expert11381399
Vectara Hallucination Rate—17.8%
MMLU65.2%—

Multimodal Not comparable

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

BenchmarkCommand RGrok 4.1 Fast
LMArena Vision—1201

Multilingual Grok 4.1 Fast leads

Command R: 35.7 (#245), Grok 4.1 Fast: 51.0 (#114)

BenchmarkCommand RGrok 4.1 Fast
LMArena Non-English11741391
LMArena Chinese11821441
LMArena French11621415
LMArena German11761404
LMArena Japanese11431349
LMArena Korean11631361
LMArena Russian11741387
LMArena Spanish11511413

Instruction Following Grok 4.1 Fast leads

Command R: 58.1 (#261), Grok 4.1 Fast: 72.7 (#133)

BenchmarkCommand RGrok 4.1 Fast
LMArena Instruction Following11671376
LiveBench Instruction Following55.6%—

Long Context Grok 4.1 Fast leads

Command R: 36.3 (#231), Grok 4.1 Fast: 42.4 (#126)

BenchmarkCommand RGrok 4.1 Fast
LMArena Longer Query11981390

Writing & Preference Grok 4.1 Fast leads

Command R: 38.2 (#254), Grok 4.1 Fast: 57.2 (#131)

BenchmarkCommand RGrok 4.1 Fast
LMArena Text11871408
LMArena Creative Writing11701394
LMArena Multi-Turn11631389
EQ-Bench Creative Writing—1327
LiveBench Language16.7%—

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 31.4 on the Noometry Index.

Which is cheaper, Command R or Grok 4.1 Fast?

Command R is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Grok 4.1 Fast lists at $0.20 and $0.50.

Is Command R or Grok 4.1 Fast better for coding?

Grok 4.1 Fast scores higher on coding benchmarks: 34.1 versus 29.3 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?

18 benchmarks have published results for both models. Command R has 29 scored results on Noometry and Grok 4.1 Fast has 32.

Related comparisons

Go deeper