Noometry

Model comparison

Command R+ vs GPT-6 Luna

GPT-6 Luna is the stronger model overall, scoring 53.3 to 32.4 on the Noometry Index.

Last verified . 20 shared benchmarks.

Command R+ Cohere

32.4

Rank #257 Confirmed

GPT-6 Luna OpenAI

53.3

Rank #36 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Command R+ scores higher in 0 categories and GPT-6 Luna in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6 Luna leads 76.1 to 28.9.
  • The biggest single-benchmark swing is LMCA: 5% for Command R+ and 44.5% for GPT-6 Luna.
  • GPT-6 Luna is cheaper at $0.10 / $0.50 per million input/output tokens, against $2.50 / $10 for Command R+.
  • GPT-6 Luna accepts more context: 1.05M tokens versus 128K.
  • Command R+ has downloadable open weights; the other is API-only.

Side by side

Command R+GPT-6 Luna
ProviderCohereOpenAI
Noometry Index32.453.3
Released2024-08-302026-09-22
WeightsOpenProprietary
Context window128K1.05M
Max output4K128K
Input $ / M tokens$2.50$0.10
Output $ / M tokens$10$0.50
Results tracked3442

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Category by category

Coding GPT-6 Luna leads

Command R+: 29.1 (#309), GPT-6 Luna: 55.5 (#25)

BenchmarkCommand R+GPT-6 Luna
LMArena Coding11871439
DeepSWE—66.6%
FrontierCode—42.4%
LMArena WebDev—1581
SciCode—54.6%
BigCodeBench Instruct33.8%—
LiveBench Coding19.1%—
BigCodeBench Complete41.9%—
ALE-Bench—1,577
HumanEval+56.7%—
MBPP+63.5%—

Agentic & Tool Use Not comparable

Command R+: —, GPT-6 Luna: 33.3 (#54)

BenchmarkCommand R+GPT-6 Luna
APEX-Agents—44.3%
GDP.pdf—23%

Reasoning GPT-6 Luna leads

Command R+: 9.2 (#344), GPT-6 Luna: 48.2 (#41)

BenchmarkCommand R+GPT-6 Luna
LMArena Hard Prompts11861411
DTBench54.9%90.1%
LMCA5%44.5%
Epoch Capabilities Index119.34156.28
ARC-AGI-2—59.3%
SimpleBench17.4%—
NYT Connections (extended)—68.7%
ARC-AGI-1—86.7%
CritPt—19.4%
Chess Puzzles—31%
LiveBench Reasoning24.8%—
Mystery Game Puzzles—7%
LiveBench Data Analysis38.1%—
LiveBench31.8%—

Math GPT-6 Luna leads

Command R+: 28.9 (#242), GPT-6 Luna: 76.1 (#15)

BenchmarkCommand R+GPT-6 Luna
LMArena Math11881416
FrontierMath (Tiers 1-3)—78.9%
FrontierMath Tier 4—56.1%
OTIS Mock AIME 2024-2025—98.9%
ProofBench—64%
LiveBench Math21.3%—

Knowledge GPT-6 Luna leads

Command R+: 36.4 (#169), GPT-6 Luna: 57.0 (#41)

BenchmarkCommand R+GPT-6 Luna
LMArena Expert11741444
GPQA Diamond—90.5%
SimpleQA Verified—41.4%
Vectara Hallucination Rate6.9%—
MMLU69.4%—

Multimodal Not comparable

Command R+: —, GPT-6 Luna: 42.4 (#30)

BenchmarkCommand R+GPT-6 Luna
LMArena Vision—1217
Blueprint-Bench 2—31.2%
Furniture Assembly—44.2%

Multilingual GPT-6 Luna leads

Command R+: 38.6 (#227), GPT-6 Luna: 50.5 (#117)

BenchmarkCommand R+GPT-6 Luna
LMArena Non-English12161386
LMArena Chinese12261433
LMArena French12091420
LMArena German12161369
LMArena Japanese11661369
LMArena Korean11381360
LMArena Russian12271394
LMArena Spanish11891393

Instruction Following GPT-6 Luna leads

Command R+: 60.0 (#254), GPT-6 Luna: 74.3 (#99)

BenchmarkCommand R+GPT-6 Luna
LMArena Instruction Following11971409
LiveBench Instruction Following57.6%—

Long Context GPT-6 Luna leads

Command R+: 37.3 (#219), GPT-6 Luna: 43.0 (#111)

BenchmarkCommand R+GPT-6 Luna
LMArena Longer Query12301409

Writing & Preference GPT-6 Luna leads

Command R+: 43.5 (#228), GPT-6 Luna: 58.3 (#119)

BenchmarkCommand R+GPT-6 Luna
LMArena Text12291391
LMArena Creative Writing12351363
LMArena Multi-Turn12131396
LiveBench Language29.7%—

Frequently asked questions

Is Command R+ better than GPT-6 Luna?

GPT-6 Luna is the stronger model overall, scoring 53.3 to 32.4 on the Noometry Index.

Which is cheaper, Command R+ or GPT-6 Luna?

GPT-6 Luna is cheaper. It lists at $0.10 per million input tokens and $0.50 per million output tokens; Command R+ lists at $2.50 and $10.

Is Command R+ or GPT-6 Luna better for coding?

GPT-6 Luna scores higher on coding benchmarks: 55.5 versus 29.1 in the Noometry coding category.

Which has the bigger context window?

GPT-6 Luna does, with 1.05M tokens against 128K.

How many benchmarks do Command R+ and GPT-6 Luna share?

20 benchmarks have published results for both models. Command R+ has 34 scored results on Noometry and GPT-6 Luna has 42.

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