Noometry

Model comparison

Claude Opus 4.8 vs Command R+

Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 32.4 on the Noometry Index. Command R+ costs 2.3× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

Last verified . 21 shared benchmarks.

Claude Opus 4.8 Anthropic

60.7

Rank #13 Confirmed

Command R+ Cohere

32.4

Rank #257 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude Opus 4.8 scores higher in 8 categories and Command R+ in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 4.8 leads 64.7 to 9.2.
  • The biggest single-benchmark swing is LMCA: 57.5% for Claude Opus 4.8 and 5% for Command R+.
  • Command R+ is cheaper at $2.50 / $10 per million input/output tokens, against $5 / $25 for Claude Opus 4.8.
  • Claude Opus 4.8 accepts more context: 1M tokens versus 128K.
  • Command R+ has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.8Command R+
ProviderAnthropicCohere
Noometry Index60.732.4
Released2026-05-282024-08-30
WeightsProprietaryOpen
Context window1M128K
Max output128K4K
Input $ / M tokens$5$2.50
Output $ / M tokens$25$10
Results tracked6534

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Category by category

Coding Claude Opus 4.8 leads

Claude Opus 4.8: 59.9 (#12), Command R+: 29.1 (#309)

BenchmarkClaude Opus 4.8Command R+
LMArena Coding14901187
DeepSWE59%—
FrontierCode46.5%—
LMArena WebDev1556—
SciCode53.5%—
GSO47.1%—
WeirdML82.9%—
BigCodeBench Instruct—33.8%
LiveBench Coding—19.1%
BigCodeBench Complete—41.9%
ALE-Bench1,564—
HumanEval+—56.7%
MBPP+—63.5%

Agentic & Tool Use Not comparable

Claude Opus 4.8: 47.6 (#11), Command R+: —

BenchmarkClaude Opus 4.8Command R+
APEX-Agents48.9%—
OSWorld 2.020.6%—
Remote Labor Index8.3%—
τ²-bench Banking39.7%—
DeepResearch Bench50.2%—
PostTrainBench33.8%—
GBAEval70.9%—
GDP.pdf24%—
LMArena Search1204—
Vending-Bench 25,787—

Reasoning Claude Opus 4.8 leads

Claude Opus 4.8: 64.7 (#16), Command R+: 9.2 (#344)

BenchmarkClaude Opus 4.8Command R+
SimpleBench64.8%17.4%
LMArena Hard Prompts14821186
DTBench94.9%54.9%
LMCA57.5%5%
Epoch Capabilities Index158.21119.34
ARC-AGI-272.1%—
Kagi LLM Benchmark88.8%—
NYT Connections (extended)91.1%—
ARC-AGI-192.5%—
CritPt20.9%—
Chess Puzzles34%—
EnigmaEval23.5%—
EBR-Bench28.6%—
LiveBench Reasoning—24.8%
Mystery Game Puzzles36%—
LiveBench Data Analysis—38.1%
Surface Evolver Bench87.5%—
Bench to the Future 30.14—
ForecastBench59.9—
LiveBench—31.8%

Math Claude Opus 4.8 leads

Claude Opus 4.8: 78.4 (#13), Command R+: 28.9 (#242)

BenchmarkClaude Opus 4.8Command R+
LMArena Math14871188
FrontierMath (Tiers 1-3)80%—
FrontierMath Tier 456.1%—
MathArena Final-Answer Competitions91.8%—
OTIS Mock AIME 2024-202598.3%—
ProofBench69%—
LiveBench Math—21.3%
FrontierMath (Feb 2025 set)47.2%—
FrontierMath Tier 4 (v1)31.3%—

Knowledge Claude Opus 4.8 leads

Claude Opus 4.8: 61.3 (#29), Command R+: 36.4 (#169)

BenchmarkClaude Opus 4.8Command R+
LMArena Expert15021174
GPQA Diamond91%—
SimpleQA Verified53%—
Vectara Hallucination Rate—6.9%
MMLU—69.4%

Multimodal Not comparable

Claude Opus 4.8: 42.9 (#26), Command R+: —

BenchmarkClaude Opus 4.8Command R+
LMArena Vision1294—
Blueprint-Bench 214.5%—
Furniture Assembly42.5%—
LMArena Document1475—

Multilingual Claude Opus 4.8 leads

Claude Opus 4.8: 55.2 (#33), Command R+: 38.6 (#227)

BenchmarkClaude Opus 4.8Command R+
LMArena Non-English14501216
LMArena Chinese15071226
LMArena French14811209
LMArena German14721216
LMArena Japanese14401166
LMArena Korean14321138
LMArena Russian14741227
LMArena Spanish14661189

Instruction Following Claude Opus 4.8 leads

Claude Opus 4.8: 77.4 (#24), Command R+: 60.0 (#254)

BenchmarkClaude Opus 4.8Command R+
LMArena Instruction Following14761197
LiveBench Instruction Following—57.6%

Long Context Claude Opus 4.8 leads

Claude Opus 4.8: 45.4 (#35), Command R+: 37.3 (#219)

BenchmarkClaude Opus 4.8Command R+
LMArena Longer Query14831230

Writing & Preference Claude Opus 4.8 leads

Claude Opus 4.8: 72.0 (#16), Command R+: 43.5 (#228)

BenchmarkClaude Opus 4.8Command R+
LMArena Text14611229
LMArena Creative Writing14541235
LMArena Multi-Turn14761213
EQ-Bench Creative Writing1840—
EQ-Bench 41281—
LiveBench Language—29.7%

Frequently asked questions

Is Claude Opus 4.8 better than Command R+?

Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 32.4 on the Noometry Index. Command R+ costs 2.3× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.8 or Command R+?

Command R+ is cheaper. It lists at $2.50 per million input tokens and $10 per million output tokens; Claude Opus 4.8 lists at $5 and $25.

Is Claude Opus 4.8 or Command R+ better for coding?

Claude Opus 4.8 scores higher on coding benchmarks: 59.9 versus 29.1 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 4.8 does, with 1M tokens against 128K.

How many benchmarks do Claude Opus 4.8 and Command R+ share?

21 benchmarks have published results for both models. Claude Opus 4.8 has 65 scored results on Noometry and Command R+ has 34.

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