Noometry

Model comparison

Claude Sonnet 5.5 vs Command R

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.4 on the Noometry Index. Command R costs 15× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

Last verified . 12 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Command R Cohere

31.4

Rank #272 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Command R in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 87.9 to 28.0.
  • Command R is cheaper at $0.15 / $0.60 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.5.
  • Claude Sonnet 5.5 accepts more context: 1M tokens versus 128K.
  • Command R has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Command R
ProviderAnthropicCohere
Noometry Index61.931.4
Released2026-09-282024-08-30
WeightsProprietaryOpen
Context window1M128K
Max output128K4K
Input $ / M tokens$2$0.15
Output $ / M tokens$10$0.60
Results tracked3229

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Command R: 29.3 (#306)

BenchmarkClaude Sonnet 5.5Command R
LMArena Coding15131169
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
BigCodeBench Instruct—37.1%
LiveBench Coding—17.9%
BigCodeBench Complete—45.2%
ALE-Bench1,819—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Command R: —

BenchmarkClaude Sonnet 5.5Command R
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Command R: 13.8 (#331)

BenchmarkClaude Sonnet 5.5Command R
LMArena Hard Prompts14951164
NYT Connections (extended)80.5%—
CritPt31.4%—
LiveBench Reasoning—21.9%
Mystery Game Puzzles65%—
DTBench—46.4%
LiveBench Data Analysis—33.3%
LMCA—9.2%
Epoch Capabilities Index165.03—
LiveBench—27.5%

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Command R: 28.0 (#246)

BenchmarkClaude Sonnet 5.5Command R
LMArena Math15101155
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
LiveBench Math—19.4%
FrontierMath Erdős2.9%—

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Command R: 31.0 (#221)

BenchmarkClaude Sonnet 5.5Command R
LMArena Expert15401138
GPQA Diamond95.6%—
SimpleQA Verified46.5%—
MMLU—65.2%

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Command R: —

BenchmarkClaude Sonnet 5.5Command R
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Command R: 35.7 (#245)

BenchmarkClaude Sonnet 5.5Command R
LMArena Non-English14521174
LMArena Chinese15221182
LMArena Russian14511174
LMArena French—1162
LMArena German—1176
LMArena Japanese—1143
LMArena Korean—1163
LMArena Spanish—1151

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Command R: 58.1 (#261)

BenchmarkClaude Sonnet 5.5Command R
LMArena Instruction Following14951167
LiveBench Instruction Following—55.6%

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Command R: 36.3 (#231)

BenchmarkClaude Sonnet 5.5Command R
LMArena Longer Query14981198

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Command R: 38.2 (#254)

BenchmarkClaude Sonnet 5.5Command R
LMArena Text14711187
LMArena Creative Writing14651170
LMArena Multi-Turn14741163
LiveBench Language—16.7%

Frequently asked questions

Is Claude Sonnet 5.5 better than Command R?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.4 on the Noometry Index. Command R costs 15× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 5.5 or Command R?

Command R is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Claude Sonnet 5.5 lists at $2 and $10.

Is Claude Sonnet 5.5 or Command R better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 29.3 in the Noometry coding category.

Which has the bigger context window?

Claude Sonnet 5.5 does, with 1M tokens against 128K.

How many benchmarks do Claude Sonnet 5.5 and Command R share?

12 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Command R has 29.

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