Noometry

Model comparison

Command R+ vs GPT-5.5 Pro

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 32.4 on the Noometry Index. Command R+ costs 15× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

Last verified . 4 shared benchmarks.

Command R+ Cohere

32.4

Rank #257 Confirmed

GPT-5.5 Pro OpenAI

64.3

Rank #8 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Command R+ scores higher in 0 categories and GPT-5.5 Pro in 3 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.5 Pro leads 73.3 to 9.2.
  • The biggest single-benchmark swing is SimpleBench: 17.4% for Command R+ and 76.9% for GPT-5.5 Pro.
  • Command R+ is cheaper at $2.50 / $10 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
  • GPT-5.5 Pro 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-5.5 Pro
ProviderCohereOpenAI
Noometry Index32.464.3
Released2024-08-302026-04-23
WeightsOpenProprietary
Context window128K1.05M
Max output4K128K
Input $ / M tokens$2.50$30
Output $ / M tokens$10$180
Results tracked3414

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Category by category

Coding Not comparable

Command R+: 29.1 (#309), GPT-5.5 Pro: —

BenchmarkCommand R+GPT-5.5 Pro
BigCodeBench Instruct33.8%—
LiveBench Coding19.1%—
LMArena Coding1187—
BigCodeBench Complete41.9%—
HumanEval+56.7%—
MBPP+63.5%—

Reasoning GPT-5.5 Pro leads

Command R+: 9.2 (#344), GPT-5.5 Pro: 73.3 (#10)

BenchmarkCommand R+GPT-5.5 Pro
SimpleBench17.4%76.9%
DTBench54.9%96%
LMCA5%53.9%
Epoch Capabilities Index119.34162.07
ARC-AGI-2—84.6%
ARC-AGI-1—96.5%
CritPt—30.6%
Chess Puzzles—64%
LiveBench Reasoning24.8%—
LMArena Hard Prompts1186—
LiveBench Data Analysis38.1%—
LiveBench31.8%—

Math GPT-5.5 Pro leads

Command R+: 28.9 (#242), GPT-5.5 Pro: 84.0 (#10)

BenchmarkCommand R+GPT-5.5 Pro
FrontierMath (Tiers 1-3)—87.7%
FrontierMath Tier 4—78%
OTIS Mock AIME 2024-2025—100%
LiveBench Math21.3%—
LMArena Math1188—
FrontierMath (Feb 2025 set)—52.4%
FrontierMath Tier 4 (v1)—39.6%

Knowledge GPT-5.5 Pro leads

Command R+: 36.4 (#169), GPT-5.5 Pro: 64.1 (#19)

BenchmarkCommand R+GPT-5.5 Pro
GPQA Diamond—93.9%
Vectara Hallucination Rate6.9%—
LMArena Expert1174—
MMLU69.4%—

Multilingual Not comparable

Command R+: 38.6 (#227), GPT-5.5 Pro: —

BenchmarkCommand R+GPT-5.5 Pro
LMArena Non-English1216—
LMArena Chinese1226—
LMArena French1209—
LMArena German1216—
LMArena Japanese1166—
LMArena Korean1138—
LMArena Russian1227—
LMArena Spanish1189—

Instruction Following Not comparable

Command R+: 60.0 (#254), GPT-5.5 Pro: —

BenchmarkCommand R+GPT-5.5 Pro
LiveBench Instruction Following57.6%—
LMArena Instruction Following1197—

Long Context Not comparable

Command R+: 37.3 (#219), GPT-5.5 Pro: —

BenchmarkCommand R+GPT-5.5 Pro
LMArena Longer Query1230—

Writing & Preference Not comparable

Command R+: 43.5 (#228), GPT-5.5 Pro: —

BenchmarkCommand R+GPT-5.5 Pro
LMArena Text1229—
LMArena Creative Writing1235—
LMArena Multi-Turn1213—
LiveBench Language29.7%—

Frequently asked questions

Is Command R+ better than GPT-5.5 Pro?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 32.4 on the Noometry Index. Command R+ costs 15× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

Which is cheaper, Command R+ or GPT-5.5 Pro?

Command R+ is cheaper. It lists at $2.50 per million input tokens and $10 per million output tokens; GPT-5.5 Pro lists at $30 and $180.

Which has the bigger context window?

GPT-5.5 Pro does, with 1.05M tokens against 128K.

How many benchmarks do Command R+ and GPT-5.5 Pro share?

4 benchmarks have published results for both models. Command R+ has 34 scored results on Noometry and GPT-5.5 Pro has 14.

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