Noometry

Model comparison

Claude Sonnet 5.5 vs Llama 2-7B

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 29.1 on the Noometry Index.

Last verified . 13 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Llama 2-7B Meta

29.1

Rank #317 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Llama 2-7B 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 30.7.
  • Llama 2-7B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Llama 2-7B
ProviderAnthropicMeta
Noometry Index61.929.1
Released2026-09-282023-07-18
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3229

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Llama 2-7B: 29.2 (#307)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Coding15131002
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
ALE-Bench1,819—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Llama 2-7B: —

BenchmarkClaude Sonnet 5.5Llama 2-7B
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Llama 2-7B: 15.7 (#312)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Hard Prompts14951009
Epoch Capabilities Index165.0399.06
NYT Connections (extended)80.5%—
CritPt31.4%—
Chess Puzzles—0%
Mystery Game Puzzles65%—
BIG-Bench Hard—39.2%
HellaSwag—77.2%
LAMBADA—73.3%
PIQA—78.8%
WinoGrande—69.2%

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Llama 2-7B: 30.7 (#233)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Math15101042
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
FrontierMath Erdős2.9%—
GSM8K—16.7%

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Llama 2-7B: 28.2 (#248)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Expert15401036
GPQA Diamond95.6%—
SimpleQA Verified46.5%—
ARC (AI2) Challenge—45.9%
BoolQ—77.9%
MMLU—45.8%
OpenBookQA—58.6%
TriviaQA—73.7%

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Llama 2-7B: —

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Vision1289—
Furniture Assembly75%—
ScienceQA—43.1%

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Llama 2-7B: 23.8 (#293)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Non-English1452973
LMArena Chinese1522973
LMArena Russian1451995
LMArena French—970
LMArena German—978
LMArena Spanish—1007

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Llama 2-7B: 50.8 (#298)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Instruction Following14951006

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Llama 2-7B: 30.4 (#287)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Longer Query1498999

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Llama 2-7B: 28.0 (#298)

BenchmarkClaude Sonnet 5.5Llama 2-7B
LMArena Text14711053
LMArena Creative Writing14651033
LMArena Multi-Turn14741029

Frequently asked questions

Is Claude Sonnet 5.5 better than Llama 2-7B?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 29.1 on the Noometry Index.

Is Claude Sonnet 5.5 or Llama 2-7B better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 29.2 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5.5 and Llama 2-7B share?

13 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Llama 2-7B has 29.

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